UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K
(Mark One)
[X]      ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                   For the Fiscal Year Ended December 31, 1999

[ ]    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                   For the Transition Period from ____ to ____

                         Commission file number 0-13634

                              MACROCHEM CORPORATION
             (Exact name of registrant as specified in its charter)

        Delaware                                             04-2744744
        --------                                             ----------
(State or other jurisdiction of                           (I.R.S. Employer
incorporation or organization)                           Identification No.)

                               110 Hartwell Avenue
                       Lexington, Massachusetts 02421-3134
                       -----------------------------------
                    (Address of principal executive offices)
                                 (781) 862-4003
                               (Telephone number)

        Securities registered pursuant to Section 12(b) of the Act: None

           Securities registered pursuant to Section 12(g) of the Act:

                          Common Stock, $.01 par value
                          ----------------------------
                                (Title of Class)

            Series B Preferred Stock Purchase Rights, $.01 par value
            --------------------------------------------------------
                                (Title of Class)


     Indicate by check mark  whether the  registrant:  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant  was required to file such  reports) and (2) has been subject to such
filing requirements for the past 90 days. Yes X No --- ---

     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best  of  the  registrant's   knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part  III of this  Form  10-K or any
amendment to this Form 10-K. [ ]

     The  aggregate  market  value  of  the  shares  of  Common  Stock  held  by
non-affiliates, based upon the closing price for such stock on March 1, 2000 was
approximately  $140,000,000.  As of March 1, 2000,  22,444,955  shares of Common
Stock, $.01 par value, were outstanding.



PART I

ITEM 1. BUSINESS.

     THIS REPORT  CONTAINS  FORWARD-LOOKING  STATEMENTS  THAT INVOLVE  RISKS AND
UNCERTAINTIES.  THE COMPANY'S ACTUAL RESULTS MAY DIFFER  SIGNIFICANTLY  FROM THE
RESULTS DISCUSSED IN THE  FORWARD-LOOKING  STATEMENTS.  FACTORS THAT MIGHT CAUSE
SUCH A DIFFERENCE  INCLUDE,  BUT ARE NOT LIMITED TO, THOSE DISCUSSED OR REFERRED
TO IN "RISK FACTORS".

     MacroChem's primary business is the development of pharmaceutical  products
for  commercialization  by  applying  SEPA(R)  (Soft  Enhancer  of  Percutaneous
Absorption), its patented topical drug delivery technology. SEPA compounds, when
properly combined with drugs, provide pharmaceutical formulations (creams, gels,
solutions, etc.) that enhance the transdermal delivery of drugs into the skin or
into the bloodstream. SEPA formulations combined with the Company's polymers and
adhesives  can also be used  with  patch  formats  to  achieve  the  transdermal
delivery of selected drugs. The Company believes that SEPA compounds enhance the
diffusion  of drugs into and  through  the skin by making the outer layer of the
skin (stratum corneum) more permeable to the drug molecule. Transdermal delivery
provides an alternative to other methods of drug administration (injection, oral
dosage forms, inhalation, etc.), and may allow selected drugs to be administered
more effectively, at lower doses, with fewer adverse events and improved patient
compliance.

     The  Company  is  developing   specific  SEPA  formulations  for  use  with
non-proprietary and proprietary drugs manufactured by pharmaceutical  companies,
and plans to commercialize these products through the formation of partnerships,
strategic  alliances and license  agreements with those  companies.  In order to
attract  strategic  partners,  the  Company is  conducting  clinical  testing of
certain SEPA-enhanced pharmaceuticals. The Company believes that if the clinical
trials are successful the results will aid the Company in attracting partners to
assist  in the  promotion  of the  product.  Because  of the  substantial  costs
involved in bringing a new pharmaceutical product or a new formulation of an old
drug to the  market,  the  Company  may be  required  to rely on  pharmaceutical
companies  to  conduct  all or part of the  clinical  trials  necessary  to gain
regulatory approval to manufacture and to market any resulting product.

     The  Company  has also  developed  a  series  of new low  molecular  weight
polymers,  termed  MacroDerm(TM),  for cosmetic use and the topical  delivery of
pharmaceuticals.  The Company has developed,  tested and evaluated prototypes of
MacroDerms and is currently seeking strategic partners to manufacture and market
products based upon this technology.

     The Company does not maintain general product  liability  insurance,  since
the Company  does not market  drug  products.  The Company has ongoing  clinical
studies and has obtained specific liability  insurance relating to such studies.
As of December  31,  1999,  no asserted  liability  claims  existed  against the
Company. However, in the future, incidents could give rise to claims which could
exceed the Company's insurance coverage and resources.


                                       2

RESEARCH AND DEVELOPMENT

     The Company  conducts its research and development  activities  through its
own staff and facilities,  as well as through  collaborative  arrangements  with
universities, contract research organizations and independent consultants. As of
March 1, 2000, the Company had 25 full-time employees, 18 of whom are devoted to
research and  development  and regulatory  affairs.  Research and  developmental
expenditures approximated $5,423,100, $4,318,800 and $2,084,800 during the years
ended December 31, 1999, 1998 and 1997,  respectively.  The Company is dependent
upon third  parties to  conduct  clinical  studies,  obtain  U.S.  Food and Drug
Administration ("FDA") and other regulatory approvals and manufacture and market
a finished product.

     The Company conducts stability studies,  tests its unique  formulations and
designs manufacturing  processes for its SEPA compounds and adhesive and polymer
technologies at its facility and other facilities. The Company has cGMP (current
Good Manufacturing Practices) facilities for the manufacture of dosage forms for
clinical evaluations.

PRODUCTS AND TECHNOLOGIES

BACKGROUND

     To be  effective,  drugs must  reach an  intended  site in the body,  at an
effective  concentration,  and for an  appropriate  length of time.  Traditional
methods  of  drug  administration,  such as oral  ingestion,  intramuscular  and
intravenous  injections  and  inhalation,  are  effective  for a wide variety of
drugs.   However,   depending  upon  the  given  drug,   each  method  may  have
disadvantages.  For example,  following  oral  administration,  a drug must pass
through the  gastrointestinal  system to be absorbed and may be  metabolized  or
broken down in the stomach,  intestines or liver, resulting in a lower amount of
unchanged drug at the target site for its action. As a result, higher dosages of
the drug must be administered  orally to produce the desired  effect,  which may
cause irritation of the gastrointestinal tract and systemic toxicity.

     In addition,  the rate at which an orally administered drug is absorbed may
vary depending on several factors, including the drug's chemical properties, the
length of time the drug remains in the gastrointestinal  tract and the patient's
meal patterns.  Although the pharmaceutical  industry has investigated a variety
of  alternative  approaches  for dealing  with drug  adverse  events and loss of
efficacy following oral dosing, through enteric coating of tablets,  formulating
with various waxes and cellulosic materials,  microencapsulation and compressing
tablets in various  layers,  the  desired  effects of these  approaches  are not
always   reproducible   from  patient  to  patient  or  effective  in  bypassing
metabolism.

TOPICAL DRUG DELIVERY

     Topical  drug  delivery  is the process of  delivering  drugs into the skin
(dermal   delivery)  so  that  they  can  be  effective  in  the   treatment  of
dermatological  conditions  and  diseases,  or  through  the  skin  (transdermal
delivery) and into the bloodstream for the treatment of systemic diseases.

                                       3

     The skin is made up of three layers:  the outer layer, the stratum corneum;
the middle  layer or viable  epidermis;  and the inner  layer,  the dermis.  The
stratum  corneum,  which  serves as the skin's  primary  barrier to the external
environment,  consists of closely packed dead cells and fatty (lipid)  material.
The  epidermis  is  composed  of several  layers of active  cells and the dermis
consists, in part, of tissue containing hair follicles,  nerve endings and blood
capillaries.  Within  the  stratum  corneum,  lipid  layers  bind the dead cells
together to form a protective  barrier.  Research  conducted by MacroChem  shows
that SEPA compounds  affect drug delivery by acting,  in part,  upon the stratum
corneum to disrupt the alignment of the lipid molecules within the lipid layers.
This disruption increases the porosity of the lipid-cell layers,  allowing drugs
to diffuse through the stratum corneum through the more porous  epidermis to the
dermis, where they enter the blood stream through the capillaries.  The rate and
amount of drug absorbed can be controlled by varying the formulation used.

THE COMPANY'S DRUG DELIVERY SYSTEMS AND OTHER PROPOSED PRODUCTS

SEPA COMPOUNDS

     The delivery of a drug through the skin depends on the drug's  physical and
chemical  characteristics  (molecular size and shape,  the drug's  solubility in
lipids  and  water,   its  melting   point  and  whether  it  is  lipophilic  or
hydrophilic).

     Since some drugs move through the skin too rapidly,  the transdermal system
must retard the rate of drug absorption to ensure optimal  efficacy with minimum
toxicity.  Since  other  drugs  move  through  the  skin  with  difficulty,  the
transdermal  system must be  formulated  to increase a drug's rate of absorption
through the skin.  Common methods of transdermal  delivery use common  chemicals
such as ethanol or fatty compounds to enhance penetration.

     Although  certain  delivery  methods  using  chemicals  have  proven  to be
somewhat  effective with specific drugs, such as drugs used for the treatment of
motion sickness or hormone  deficiencies,  they have caused adverse events, such
as skin  irritation  and  sensitivity  at the site of  application.  Some drugs,
because of their  physical  characteristics  or the amount of drug  necessary to
achieve the desired  therapeutic  effect,  have not been successfully  delivered
transdermally to date.

     The Company has developed  SEPA  compounds that are designed to enhance the
transport,  penetration and controlled  delivery of drugs through the skin. SEPA
compounds  are generally  colorless,  clear liquids that are intended to promote
drug delivery by aiding drug  molecules to penetrate  the skin,  diffuse into or
through the skin layers and become absorbed into the bloodstream.

     The  Company  has  its  own  facility  for  the in  vitro  testing  of drug
formulations  containing  SEPA,  and  therefore  is less  dependent  on  outside
laboratories  for this type of  testing.  The  Company  is  conducting  in vitro
studies to evaluate the transdermal enhancing effect of SEPA in combination with
a  variety  of drugs  with  differing  physical  and  chemical  characteristics,
representing a broad spectrum of potential drug products. Although the Company's
research and development efforts with SEPA are at an advanced stage, the Company
must still conduct  substantial  additional  studies to demonstrate the efficacy
and safety of any  SEPA-drug  formulation.  The Company has found that  specific


                                       4

drugs administered  transdermally with SEPA demonstrated  increased  transdermal
absorption.  Some of the drug  formulations  tested  by the  Company  with  SEPA
contain compounds generally  recognized as unlikely or difficult  candidates for
transdermal  delivery  because of their  physical  and chemical  properties  and
molecular size. As these drug  formulations are further  developed,  the Company
plans to conduct  additional  studies to investigate  the efficacy and safety of
some of these formulations.

     The  Company  has  conducted  early  clinical  studies  with  several  drug
formulations  containing  SEPA  where  SEPA has  been  demonstrated  to  enhance
transdermal  penetration of the specific drug within in vitro testing.  Clinical
studies have included  Phase I trials in which safety and tolerance of a topical
application of the drug  formulation  were assessed and Phase II trials in which
efficacy  of  the  specific  drug  was  evaluated  in  an  appropriate  clinical
condition.

     The Company has designed and sponsored clinical trials of Topiglan(TM), the
Company's  topical  formulation of alprostadil and SEPA for use in the treatment
of erectile  dysfunction.  Testing has established  safety and tolerance in both
normal volunteers and patients with the target disease. In addition,  randomized
controlled trials have demonstrated effectiveness of the alprostadil formulation
in patients with erectile dysfunction. The Company has also conducted laboratory
studies  with SEPA  formulations  of  nonsteroidal  anti-inflammatory  drugs for
topical application in pain management.

     In addition to the ongoing clinical  development  programs cited above, the
Company, in association with third parties, is currently conducting pre-clinical
studies with SEPA  formulations in combination with specific drugs for a variety
of other applications, including but not limited to fungal infections.

     The Company  believes that SEPA  compounds can be used with a broad variety
of new and existing drugs to enhance their  commercial  value.  The  therapeutic
effectiveness  and  improved  convenience  of a  transdermal  SEPA  product  may
substantially  expand the existing market for a drug. In addition, a formulation
containing  a SEPA  compound  may  prove  to be a  superior  alternative  to the
existing methods of administering certain drugs.

MACRODERM(TM) DRUG DELIVERY SYSTEM

     The Company has  developed a series of new low molecular  weight  polymers,
termed MacroDerm, for use in cosmetics and in the superficial dermal delivery of
pharmaceuticals.  Potential  applications  include  their  use with  sunscreens,
moisturizers,  and insect  repellents.  The Company has synthesized,  tested and
evaluated  prototypes of MacroDerms and is currently seeking strategic  partners
to manufacture and market specific MacroDerm products.

COMPETITION

     The  Company  competes  with  numerous  firms,  many of  which  are  large,
multi-national  organizations with worldwide distribution.  The Company believes
that its  major  competitors  in the drug  delivery  sector of the  health  care
industry include ALZA Corporation, Cygnus Therapeutic Systems, Elan Corporation,
plc.,  Novartis  and Pfizer.  These  firms have  substantially  greater  capital
resources,  research  and  development  and  technical  staffs,  facilities  and


                                       5

experience  in  obtaining  regulatory  approvals,  as well as in  manufacturing,
marketing and distribution of products,  than the Company. Recent trends in this
area are toward  further  market  consolidation  of large drug  companies into a
smaller  number  of  very  large  entities,   further  concentrating  financial,
technical  and  market  strength  and  increasing  competitive  pressure  in the
industry.  Academic  institutions,  hospitals,  governmental  agencies and other
public and private  research  organizations  are also  conducting  research  and
seeking patent protection and may develop competing  products or technologies of
their own through joint ventures or other  arrangements.  In addition,  recently
developed  technologies or technologies  that may be developed in the future may
or could be the basis for competitive  products.  No assurance can be given that
the  Company's  competitors  will not  succeed in  developing  technologies  and
products  that  are  more  effective  or less  costly  to use  than any that are
currently being developed by the Company.

     Alprostadil,  a synthetic  prostaglandin E1 (PGE1), and Viagra(R),  are the
only drugs approved for marketing in the United States for erectile dysfunction.
PGE1 is available  in two dosage  forms.  Caverject(R),  marketed by Pharmacia &
Upjohn, is administered by needle injection  directly into the penis. The second
product, developed by Vivus, is a pellet form of the drug administered through a
tube inserted into the urethra. In contrast to the invasive forms now available,
MacroChem  believes that a topical gel formulation  applied to the penis will be
the preferred  dosage form for treatment of this  disorder.  Viagra(R),  an oral
product of Pfizer,  was approved by the FDA in 1998.  Many large drug  companies
have announced internal programs to develop orally administered  alternatives to
Pfizer's Viagra for treating male erectile dysfunction.  In addition, NexMed has
announced  commencement  of U.S.  Phase 2 clinical  trials of its topical  cream
formulation of Alprostadil for treating the disease.

     Johnson  &  Johnson  and  Novartis   each  offer  an  orally   administered
anti-fungal  therapy for  treating  fungal  infections  of the nail. A number of
smaller  firms  are  also  developing  topical  and  oral  therapies  for  these
infections.

     The  Company  expects  products  approved  for  sale,  if any,  to  compete
primarily  on  the  basis  of  product  efficacy,  safety,  patient  compliance,
reliability,  price and patent  position.  Generally,  the first  pharmaceutical
product to reach the market in a therapeutic  or  preventive  area is often at a
significant  advantage  relative to later entrants to the market.  The Company's
competitive  position  will also  depend on its  ability to  attract  and retain
qualified  scientific  and  other  personnel,   develop  effective   proprietary
products, implement production and marketing plans, obtain patent protection and
secure adequate capital resources.

EMPLOYEES

     As of March 1, 2000, the Company had 25 full time employees, 18 of whom are
devoted to research and development and regulatory affairs.

GOVERNMENT REGULATION

     The  production  and marketing of the Company's  drug delivery  systems and
pharmaceutical  products  are subject to  regulation  for safety,  efficacy  and
quality by numerous federal, state and local agencies and comparable agencies in
foreign  countries.  In the United States,  the Federal Food, Drug and Cosmetics


                                       6

Act, the Public  Health  Service Act, the  Controlled  Substances  Act and other
federal statutes and regulations  govern or influence the testing,  manufacture,
safety, labeling,  storage, record keeping, approval,  advertising and promotion
of the Company's proposed products and technologies.

     Non-compliance  with applicable  requirements can result in fines and other
judicially imposed sanctions  including recalls and criminal  prosecutions based
on products,  promotional  practices,  or  manufacturing  practices that violate
statutory  requirements.  In  addition,   administrative  remedies  can  involve
voluntary  recalls or cessation of sale of products,  administrative  detention,
public  notice,  voluntary  changes in labeling,  manufacturing  or  promotional
practices, as well as refusal of the government to approve New Drug Applications
(NDAs).  The FDA  also  has the  authority  to  withdraw  approval  of  drugs in
accordance with statutory procedures.

     The FDA approval procedure involves completion of certain  pre-clinical and
manufacturing/stability  studies  and the  submission  of the  results  of these
studies to the FDA in an Investigational  New Drug (IND) exemption in support of
performing  clinical  trials.  IND allowance is then followed by  performance of
human clinical trials,  and additional  pre-clinical and  manufacturing  quality
control studies,  supporting safety, efficacy and manufacturing quality control.
The  safety,  chemistry,   manufacturing  and  stability  and  clinical  studies
developed  under  the  IND are  compiled  into an NDA or  Abbreviated  New  Drug
Application (ANDA) and submitted to the FDA for approval to market.

     Preclinical    studies   involve    laboratory    evaluation   of   product
characteristics  and animal  studies to assess  the  efficacy  and safety of the
product.  Human  clinical  trials are  typically  conducted in three  sequential
phases,  but the phases may  overlap.  Phase I trials  consist of testing of the
product in a small number of normal  volunteers  primarily for safety.  In Phase
II, in addition to safety,  the  efficacy of the product is evaluated in a small
patient  population.  Phase III trials typically involve multicenter testing for
safety  and  clinical  efficacy  in  an  expanded   population  of  patients  at
geographically dispersed test sites. A clinical plan, or "protocol," accompanied
by the identification of the institutions  participating in the trials,  must be
submitted to the FDA prior to commencement  of each clinical trial.  The FDA may
order the temporary or permanent discontinuation of a clinical trial at any time
if  adverse  events  that  endanger  patients  in the trials  are  observed.  In
addition,  the FDA may request Phase IV clinical  trials,  to be performed after
marketing approval, to resolve any lingering questions.

     A 30-day  waiting  period  after  the  filing  of each IND  application  is
required  by the FDA prior to the  commencement  of  clinical  testing  in human
subjects.  If the FDA has not  commented on or  questioned  the IND  application
within 30 days, initial clinical studies may begin. However, any FDA comments or
questions  must  be  answered  to the  satisfaction  of the FDA  before  initial
clinical  testing can begin.  In some  instances,  this process  could result in
substantial delay and expense.

     The  results  of the  preclinical  and  clinical  studies  on new drugs are
submitted  to the FDA in the form of NDAs for  approval to  commence  commercial
sales. Following extensive review, the FDA may grant marketing approval, require
additional testing or information or deny the application.  Continued compliance
with  all  FDA  requirements  and the  conditions  in an  approved  application,


                                       7

including   product   specifications,   manufacturing   process   and   labeling
requirements,  are  necessary  for  all  products.  Failure  to  comply,  or the
occurrence of unanticipated  adverse events during commercial  marketing,  could
lead to the need for labeling  changes,  product  recall,  seizure,  injunctions
against  distribution or other FDA-initiated  action,  which could delay further
marketing until the products are brought into compliance.

     In certain  cases,  an ANDA may be filed in lieu of filing an NDA.  An ANDA
relies on bioequivalency tests that compare the applicant's drug with an already
approved  reference  drug,  rather  than on  clinical  trials.  An  ANDA  may be
available to the Company for a new  formulation of a drug which has already been
approved by the FDA in other topical  dosage  forms.  By  concentrating  on drug
delivery systems employing existing drugs, the Company expects that the time for
regulatory  approval of certain products should be shorter than for entirely new
substances.

     The NDA itself is a complicated and detailed  document and must include the
results of extensive  animal,  clinical and other testing,  the cost of which is
substantial. Although the FDA is required to review applications within 180 days
of filing, in the process of reviewing  applications the FDA frequently requests
that  additional  information  be  submitted  and starts the 180-day  regulatory
review period anew when the requested additional  information is submitted.  The
effect of such requests and subsequent  submissions can significantly extend the
time for the NDA review process. Until an NDA is actually approved, no assurance
can be given that the  information  requested and  submitted  will be considered
adequate by the FDA to justify approval.

     In  addition,  packaging  and  labeling of most of the  Company's  proposed
products  are subject to FDA  regulation.  The Company must get FDA approval for
all labeling and packaging prior to marketing of a regulated product.

     Whether or not FDA approval has been  obtained,  approval of a product by a
comparable regulatory authority must be obtained in most foreign countries prior
to the  commencement  of marketing of the product in that country.  The approval
procedure varies from country to country and may involve additional testing, and
the time required may differ from that required for FDA approval.  Although some
procedures for unified filings exist for certain European countries,  in general
each  country has its own  procedure  and  requirements,  many of which are time
consuming  and  expensive.   Thus,  substantial  delays  in  obtaining  required
approvals  from  foreign  regulatory  authorities  can result after the relevant
applications are filed. After such approvals are obtained, further delays may be
encountered before the products become commercially available.

     No  assurance  can be given  that any  required  FDA or other  governmental
approval  will be granted or, if granted,  will not be  withdrawn.  Governmental
regulation  may prevent or  substantially  delay the  marketing of the Company's
proposed products,  cause the Company to undertake costly procedures and furnish
a competitive  advantage to the more  substantially  capitalized  companies with
which the  Company  plans to compete.  In  addition,  the extent of  potentially
adverse government  regulations that may arise from future administrative action
or legislation cannot be predicted.

                                       8

PATENTS AND LICENSE RIGHTS, TRADEMARKS

     During 1999,  the Company was granted five U.S.  patents and one Australian
patent.  Two of the U.S.  patents and the Australian  patent are directed to the
Company's MacroDerm  polymers.  The other three U.S. patents are directed to the
Company's  Topiglan(TM),  Benefen(TM)(and  other NSAID) and hormone  replacement
therapy (HRT) formulations incorporating the Company's basic SEPA(R) technology.

     Also during 1999, the Company filed a  non-provisional  patent  application
directed to antifungal  nail lacquer  products and which  incorporate  SEPA skin
penetration enhancers.  Corresponding foreign applications were filed in Europe,
Canada, Brazil and Japan. Additional patent protection was filed in the U.S. for
other NSAID formulations.

     The Company is also actively pursuing domestic and European registration of
its MacroDerm(TM) and Benefen (TM) trademarks.

     The Company believes that patent protection of its technologies,  processes
and products is important to its future operations. The success of the Company's
proposed  products may depend,  in part,  upon the  Company's  ability to obtain
patent protection.

     Although the Company  intends to file  additional  patent  applications  as
management   believes   appropriate   with   respect  to  any  new  products  or
technological  developments,  no  assurance  can be given  that  any  additional
patents  will be issued  or, if  issued,  will be of  commercial  benefit to the
Company. In addition, to anticipate the breadth or degree of protection that any
such patents may afford is impossible.  To the extent that the Company relies on
unpatented  proprietary  technology,  no assurance can be given that others will
not  independently  develop  or  obtain  substantially  equivalent  or  superior
technology or otherwise  gain access to the Company's  trade  secrets,  that any
obligation of  confidentiality  will be honored or that the Company will be able
to  effectively  protect  its  rights to  proprietary  technology.  Further,  no
assurance  can be given that any  products  developed  by the  Company  will not
infringe patents held by third parties or that, in such case, licenses from such
third parties would be available on commercially acceptable terms, if at all.

     In  connection  with the prior  research  and  development  efforts  of the
Company,  the Company owns several patents and possesses  certain license rights
in connection with other technologies,  which it is not currently pursuing.  The
Company intends to enforce its patent position and intellectual  property rights
vigorously.  The cost of enforcing the Company's  patent rights in lawsuits,  if
necessary, may be significant and could interfere with the Company's operations.

RISK FACTORS

     IN ADDITION TO THE OTHER  INFORMATION  IN THIS REPORT,  THE FOLLOWING  RISK
FACTORS  SHOULD BE  CONSIDERED  CAREFULLY  IN  EVALUATING  THE  COMPANY  AND ITS
BUSINESS. THIS REPORT CONTAINS FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS AND
UNCERTAINTIES.  THE COMPANY'S ACTUAL RESULTS MAY DIFFER  SIGNIFICANTLY  FROM THE
RESULTS  DISCUSSED  IN THE  FORWARD-LOOKING  STATEMENTS  IN THIS  REPORT  AND IN
FORWARD-LOOKING STATEMENTS MADE FROM TIME TO TIME BY THE COMPANY ON THE BASIS OF
MANAGEMENT'S  THEN-CURRENT  EXPECTATIONS.   FACTORS  THAT  MIGHT  CAUSE  SUCH  A
DIFFERENCE  INCLUDE,  BUT ARE NOT LIMITED  TO,  THOSE  DISCUSSED  OR REFERRED TO
BELOW.

                                       9

HISTORY OF OPERATING LOSSES; NEED FOR CONTINUED WORKING CAPITAL

     The Company has been engaged  primarily in research and  development  since
its inception in 1981 and has derived limited revenues from feasibility studies,
the  commercial  sale of its products and licensing of certain  technology.  The
Company has had no revenues relating to the sale of any products currently under
development.  The Company has incurred net losses every year since its inception
and the Company anticipates that losses may continue for the foreseeable future.
See Item 8, "Financial Statements and Supplementary Data." At December 31, 1999,
the Company's accumulated deficit was approximately $33.3 million. The Company's
ability to continue operations after its current capital resources are exhausted
depends on its ability to obtain  additional  financing  and achieve  profitable
operations, as to which no assurance can be given. However, the Company believes
that its financial resources are sufficient to meet planned operating activities
for at least the next 12 months.

     The  Company  continues  to  pursue  the   commercialization  of  its  SEPA
technology  through  discussion and  presentation of its technology to potential
licensees.  No assurance  can be given that these  discussions  will lead to any
licenses or that any license fees will be received by the Company in the current
fiscal year.  For the  foreseeable  future,  and until  marketing  approvals are
obtained,  and/or  license  agreements  are entered into,  if ever,  the Company
anticipates  limited  licensing  revenue and no royalties from sales of products
using SEPA for pharmaceutical purposes.

TECHNOLOGY UNCERTAINTY AND EARLY STAGE DEVELOPMENT

     Although  several  systems have been  developed  by various  pharmaceutical
companies  to enhance the  transdermal  delivery of specific  drugs,  relatively
limited  research has been  conducted in the expansion of  transdermal  delivery
systems to a wider range of  pharmaceutical  products.  Although the Company has
demonstrated  in  preclinical  and clinical  studies  that its SEPA  transdermal
compounds  may  have  applicability  with a broad  range of  drugs,  transdermal
delivery  systems are currently  marketed for only a limited number of products.
In addition,  transdermal  delivery systems used to date have often demonstrated
adverse  side  effects  for  users,   such  as  skin   irritation  and  delivery
difficulties.

     The Company's proposed products are in the early development stage, require
significant further research, development, testing and regulatory clearances and
are  subject to the risks of failure  inherent  in the  development  of products
based on innovative technologies. These risks include the possibilities that any
or all of the proposed  products  may be found to be  ineffective  or toxic,  or
otherwise may fail to receive necessary regulatory clearances; that the proposed
products,  although  effective,  may be  uneconomical  to market;  or that third
parties may market superior or equivalent products.  Due to the extended testing
and  regulatory  review  process  required  before  marketing  clearance  can be
obtained,  the Company  does not expect to be able to realize  royalty  revenues
from the sale of any drugs in the near term.


                                       10

NEED FOR SIGNIFICANT PRODUCT DEVELOPMENT EFFORTS AND ADDITIONAL FINANCING

     Before the Company or any of its  licensees  may market any products  based
upon the Company's technology,  significant  additional  development efforts and
substantial   preclinical  and  clinical  testing  will  be  necessary.   Unless
substantial   additional  financing  is  obtained,  the  Company  may  not  have
sufficient  working  capital  to  complete  clinical  studies  on  any  proposed
products. No assurance can be given that the Company will be able to secure such
financing on favorable terms, if at all.

UNCERTAINTIES RELATED TO CLINICAL TRIALS

     Before obtaining  regulatory approval for the commercial sale of any of its
pharmaceutical products under development, the Company must demonstrate that the
product is safe and efficacious for use in each proposed indication. The results
of  preclinical  studies  and early  clinical  trials may not be  predictive  of
results  that  will be  obtained  in  large-scale  testing,  and there can be no
assurance that clinical  trials of the Company's  products will  demonstrate the
safety and efficacy of its  products or will result in  marketable  products.  A
number of companies in the  pharmaceutical  industry have  suffered  significant
setbacks in advanced  clinical trials,  even after promising  results in earlier
trials.  If the Company  were unable to  demonstrate  the safety and efficacy of
certain of its products, the Company might be adversely affected.

DEPENDENCE ON THIRD PARTIES FOR DEVELOPMENT; NO ASSURANCE OF LICENSE
ARRANGEMENTS

     The Company intends to rely on licensees and joint venture  arrangements to
fund most of the costs  relating to product  development  and  clinical  trials.
Licensees may be expected to have the legal right to terminate funding a product
at any time for any  reason  without  significant  penalty.  The  resources  and
attention  devoted by a  licensee  to a product  are not  within  the  Company's
control,  and this can result in delays in clinical testing, the preparation and
prosecution of regulatory filings and  commercialization  efforts.  Further,  no
assurance  can be  given  that  the  Company  will  be able to  enter  into  new
collaborative arrangements or that existing or future collaborative arrangements
will be successful.

PRIOR DEVELOPMENT EFFORTS HAVE NOT GENERATED SUSTAINED REVENUES OR ANY PROFITS

     Since its  inception  in 1981,  the Company  has  engaged in  research  and
development  activities with respect to a variety of technologies  and products,
including   polymers  for  medical  and  industrial   use,   dental   adhesives,
osteoporotic drugs and transdermal drug-delivery products.  Although the Company
has generated  differing levels of revenue over the last several years,  none of
the Company's products or technologies has ever generated sustained revenues and
the  Company has never had  profitable  operations.  The Company has  expended a
substantial  amount of its resources in researching  and  developing  technology
relating  to these  products  as well as in  connection  with the  research  and
development of its transdermal  delivery systems. No assurance can be given that
the Company's  development  activities with respect to its transdermal  delivery
systems  will be  successful  or  that  these  efforts  will  not be  eventually
abandoned.


                                       11

LACK OF MARKETING EXPERIENCE;  DEPENDENCE ON THIRD PARTIES FOR MARKETING AND
DISTRIBUTION OF PRODUCTS

     The Company intends to market and distribute its proposed  products through
others  pursuant  to  licensing,   joint  venture,   or  similar   collaborative
arrangements  or  distribution  agreements.  The  Company  has no sales force or
marketing  organization.  If the Company  directly markets and sells any of such
products,  it will, among other things,  have to attract and retain qualified or
experienced  marketing and sales  personnel.  No assurance can be given that the
Company will be able to attract and retain  qualified or  experienced  marketing
and sales  personnel or that any efforts  undertaken by such  personnel  will be
successful.  Any  contractual  arrangements  with others may result in a lack of
control  by the  Company  over  any or all of the  marketing  and  sales of such
products.

DEPENDENCE ON THIRD PARTIES FOR MANUFACTURING

     The Company currently does not have facilities capable of manufacturing any
proposed  products in commercial  quantities.  Accordingly,  the Company expects
that it will be  dependent  to a  significant  extent  on  licensees,  corporate
partners or contract  manufacturers  for such  manufacturing  and for compliance
with regulatory  requirements for good  manufacturing  practices.  The Company's
dependence on third parties for manufacturing may adversely affect the Company's
ability to develop and deliver  products on a timely and  competitive  basis. If
the Company decides to establish a commercial  manufacturing  facility,  it will
require  substantial  additional  funds,  will be  required  to hire and  retain
significant  additional  personnel and will be required to comply with extensive
government regulations.  No assurance can be given that the Company will be able
to obtain additional capital to conduct such activities directly.

RELIANCE ON KEY EMPLOYEES; LIMITED PERSONNEL; ABILITY TO ATTRACT AND RETAIN
QUALIFIED SCIENTISTS

     The success of the Company is dependent on the efforts and abilities of Dr.
Carlos  M.  Samour,  its  Chairman  of the  Board of  Directors  and  Scientific
Director,  Alvin J. Karloff, its Chief Executive Officer and President, Dr. Paul
J. Schechter,  its Vice President,  Drug Development and Regulatory  Affairs and
Kenneth L Rice, its Vice President and Chief Financial Officer . Dr. Samour, Mr.
Karloff, Dr. Schechter and Mr. Rice are employed by the Company under employment
agreements  that  are  of  indefinite  length  and  include  non-disclosure  and
non-competition  provisions.  The loss of Dr. Samour or Mr. Karloff could have a
material adverse effect on the Company's business.

     The  Company's  business  also  depends  on  access to  scientific  talent,
competition  for which is intense and can be expected to increase.  There can be
no assurances that the Company will be able to retain its existing  personnel or
to attract additional qualified employees.

COMPETITION; GOVERNMENT REGULATION; PATENTS AND LICENSE RIGHTS

     See these sections,  above,  for a description of risk factors  relating to
these matters.

                                       12


RISKS OF PRODUCT LIABILITY CLAIMS; LACK OF PRODUCT LIABILITY INSURANCE; EXPENSE
AND DIFFICULTY OF OBTAINING ADEQUATE INSURANCE COVERAGE

     The design,  development,  manufacture  and sale of the Company's  products
involve an inherent risk of liability claims and associated  adverse  publicity.
The Company  currently has  liability  insurance to cover claims that may result
from clinical trials, but does not maintain product liability  insurance and may
need to acquire such insurance coverage prior to the commercial  introduction of
its  products.  No  assurance  can be given  that  the  coverage  limits  of the
Company's insurance policies will be adequate.  Such insurance is expensive,  is
difficult to obtain and may not be available in the future on  acceptable  terms
or at all. A successful claim brought against the Company if it is uninsured, or
which is in excess of the Company's  insurance  coverage,  if any,  could have a
material adverse effect upon the Company and its financial condition.

UNCERTAINTY OF PHARMACEUTICAL PRICING AND RELATED MATTERS

     The future revenues and  profitability  of, and availability of capital for
biomedical  and  pharmaceutical  companies  may be  affected  by the  continuing
efforts of governmental and third-party payers to contain or reduce the costs of
health care through  various  means.  For example,  in certain  foreign  markets
pricing  or  profitability  of  prescription   pharmaceuticals   is  subject  to
government  control  and to reform in the  health  care  system.  In the  United
States,  there have been,  and the Company  expects there will continue to be, a
number of federal and state  proposals  to impose  similar  government  control.
While the Company  cannot  predict  whether any such  legislative  or regulatory
proposals will be adopted,  the announcement or adoption of such proposals could
have a material adverse effect on the Company's prospects. If the Company or one
of its  partners  succeeds in  bringing  to market one or more of its  products,
based  upon the  Company's  technology,  there can be no  assurance  that  these
products will be cost effective and that  reimbursement  to the consumer will be
available  or will be  sufficient  to allow the Company or its  partners to sell
such products on a profitable basis.

ITEM 2. PROPERTIES.

     Effective  December 15, 1999, the Company leased an additional 7,316 square
feet of office and  laboratory  space  bringing the total space  occupied by the
Company  to 17,277  square  feet.  This space is located on one floor of a three
story  building  in  Lexington,  Massachusetts.  See  Note  5 to  the  financial
statements  included in Item 8 of this Report. The lease agreement is an exhibit
to this Report.

ITEM 3. LEGAL PROCEEDINGS.

     None.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

     No matters were  submitted to a vote of security  holders  during the three
months  ended  December  31,  1999,  through  the  solicitation  of  proxies  or
otherwise.

                                       13

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

MARKET PRICE OF SECURITIES AND RELATED MATTERS

     The Company's Common Stock is traded on NASDAQ under the symbol "MCHM." The
following  chart  sets  forth the range of high and low  closing  prices for the
Common Stock for the periods indicated as obtained from NASDAQ:

                                                  COMMON STOCK
                                                      MCHM
         YEAR ENDED                          HIGH          LOW
         DECEMBER 31, 1998
         First Quarter                     13  3/8        7  1/2
         Second Quarter                    12  7/8        7
         Third Quarter                      8  7/16       3  1/8
         Fourth Quarter                     9  3/8        5  1/16

         DECEMBER 31, 1999
         First Quarter                     10  3/4        7  5/8
         Second Quarter                    10  5/8        5 15/16
         Third Quarter                      8             5
         Fourth Quarter                     6  9/16       4  1/16

     The above  quotations  represent  prices between dealers and do not include
retail markups,  markdowns or commissions and may not necessarily reflect actual
transactions.  As of December  31,  1999,  there were 487 record  holders of the
Company's Common Stock.

     The Company has never paid  dividends  on its Common Stock and its Board of
Directors  does not  contemplate  declaring  any  dividends  in the  foreseeable
future.  The Company  presently  intends to retain earnings,  if any, to finance
research, development, and expansion of its business.

RECENT SALES OF UNREGISTERED SECURITIES

     During  1999,  the  Company  did not  issue  any  securities  that were not
registered under the Securities Act of 1933.

                                       14





ITEM 6. SELECTED FINANCIAL DATA.


                                                               YEARS ENDED DECEMBER 31,
                                 ---------------------------------------------------------------------------------

                                      1995               1996            1997             1998            1999
                                      ----               ----            -----            -----           ----

                                                                                      
STATEMENTS OF
OPERATIONS DATA:

Revenues                         $    17,493        $   129,786      $   120,350     $   274,749     $  464,332
Research and development
   expenses                        1,238,070          1,736,561        2,084,826       4,318,758       5,423,138
Net loss                          (2,465,837)        (3,139,796)      (3,569,113)     (4,842,871)     (6,787,069)
Basic and diluted net
   loss per share                      (0.20)             (0.21)           (0.21)          (0.22)          (0.30)
Shares used to compute
   basic and diluted net
   loss per share                 12,331,560         15,239,080       16,638,401      22,204,105      22,311,890

BALANCE SHEET DATA:

Working capital                  $ 4,532,623        $ 7,127,252      $24,756,904     $19,891,936     $14,776,372
Current assets                     4,962,562          7,495,715       25,069,804      20,756,671      15,437,685
Total assets                       5,462,625          8,063,750       25,623,836      21,509,724      16,313,732
Current liabilities                  429,939            368,463          312,900         864,735         661,313
Capitalized lease obligations         91,861             57,038           18,408             ---             ---
Total liabilities                    486,198            386,871          312,900       1,364,735       1,161,313
Stockholders' equity               4,976,427          7,676,879       25,310,936      20,144,989      15,152,419


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATIONS.

     The  following  discussion  of  the  financial  condition  and  results  of
operations for the Company should be read in conjunction  with the  accompanying
financial statements and related footnotes.

GENERAL

     MacroChem's primary business is the development of pharmaceutical  products
for  commercialization  by  applying  SEPA(R)  (Soft  Enhancer  of  Percutaneous
Absorption),  its  patented  drug  delivery  technology.  SEPA  compounds,  when
properly combined with drugs, provide pharmaceutical formulations (creams, gels,
solutions, etc.) that enhance the transdermal delivery of drugs into the skin or
into the bloodstream.  The Company currently derives no significant revenue from
product sales,  royalties or license fees. The Company plans to develop specific
SEPA   formulations   for  use  with  proprietary  and   non-proprietary   drugs
manufactured by pharmaceutical  companies,  and to commercialize  these products
through  the  formation  of  partnerships,   strategic   alliances  and  license
agreements  with those  companies.  In order to attract  strategic  partners the
Company is conducting clinical testing of certain SEPA-enhanced pharmaceuticals.


                                       15


     The Company's  results of operations vary  significantly  from year to year
and quarter to quarter,  and depend,  among other factors, on the signing of new
licenses and product development  agreements,  the timing of revenues recognized
pursuant to license agreements,  the achievement of milestones by licensees, the
progress of clinical  trials  conducted  by licensees  and the Company,  and the
degree of  research,  marketing  and  administrative  effort.  The timing of the
Company's revenues may not match the timing of the Company's  associated product
development  expenses. To date, research and development expenses have generally
exceeded revenues in any particular period and/or fiscal year.

RESULTS OF OPERATIONS

YEAR ENDED DECEMBER 31, 1999 COMPARED TO THE YEAR ENDED DECEMBER 31, 1998

     For 1999  and  1998,  the  Company  recognized  revenues  of  approximately
$464,300 and  $274,700,  respectively,  which were  primarily  from  feasibility
studies.

     Research and development costs increased by approximately $1,104,300 from
approximately  $4,318,800  in 1998 to  approximately  $5,423,100  in 1999, a 26%
increase.  This  increase  reflects  the  Company's  continued  acceleration  of
clinical testing of its products and increased internal research and development
efforts.  The Company expects that research and development  costs will continue
to  increase  substantially  in  2000,  reflecting  increased  clinical  testing
efforts.

     Marketing,   general  and  administrative   expenses  for  1999  aggregated
approximately  $2,610,800,  an increase of approximately  $685,800, or 36%, from
1998's total of  approximately  $1,925,000.  This  increase  primarily  reflects
increases of $331,100 in stock-based  compensation,  $32,500 in consulting  fees
and $295,600 in officers' salaries. The Company expects that marketing,  general
and  administrative  expenses will remain essentially the same for 2000 with the
exception of routine salary increases.

     Other income decreased by approximately  $343,700,  or 29%, from $1,174,200
in 1998 to $830,500 in 1999.  This  decrease is  attributable  primarily  to the
lower amount of cash available to be invested.

     For  the  year  ended  December  31,  1999,  the  Company's  net  loss  was
approximately  $6,787,100 as compared to a loss of approximately  $4,482,900 for
the previous  year, a 51% increase.

YEAR ENDED DECEMBER 31, 1998 COMPARED TO THE YEAR ENDED DECEMBER 31, 1997

     For 1998  and  1997,  the  Company  recognized  revenues  of  approximately
$274,700 and  $120,400,  respectively,  which were  primarily  from  feasibility
studies.

     Research and development  costs increased by approximately  $2,234,000 from
$2,084,800  in 1997 to  $4,318,800  in  1998,  a 107%  increase.  This  increase
reflects  the  Company's  continued  acceleration  of  clinical  testing  of its
products and increased  internal  research and development  efforts.

     Marketing,   general  and  administrative   expenses  for  1998  aggregated
approximately  $1,925,000,  a reduction of  approximately  $67,200,  or 3%, from
1997's  total  of  approximately   $1,992,200,   reflecting  lower   stock-based
compensation and consulting  expenses  partially offset by increased  regulatory
fees and recruiting expenses.


                                       16

     Other income increased from a net amount of approximately  $417,500 in 1997
to approximately  $1,174,200 in 1998. This increase  reflects  investment income
resulting from the investment of proceeds  received from the exercise of Class A
and Class AA warrants during the latter part of 1997.

     For  the  year  ended  December  31,  1998,  the  Company's  net  loss  was
approximately  $4,842,900 as compared to a loss of approximately  $3,569,100 for
the previous  year, a 36% increase.

LIQUIDITY AND CAPITAL RESOURCES

     Since inception, the primary source of funding for the Company's operations
has been the private and public sale of its securities,  and to a lesser extent,
the licensing of its proprietary technology and products,  government grants and
the limited  sales of products  and test  materials.  During  1999,  the Company
received aggregate net proceeds of approximately $1,367,000 from the exercise of
stock options and stock warrants, compared to approximately $211,000 in 1998. At
December 31, 1999 working capital was approximately  $14.7 million,  compared to
$19.9  million at December 31, 1998.  The  reduction  in the  Company's  working
capital  was due  primarily  to the  cash  used  by  operating  activities,  the
Company's  investment  in equipment and the  repurchase of the Company's  common
stock.  Until  such time as the  Company  obtains  agreements  with  third-party
licensees or partners to provide funding for the Company's  anticipated business
activities  or the Company is able to obtain funds through the private or public
sale of its securities,  the Company's  working capital will be utilized to fund
its operating activities.

     Pursuant  to a plan  approved  by the  Company's  Board of  Directors,  the
Company is authorized to repurchase  1,000,000  shares of its common stock to be
held as  treasury  shares for future use.  During  1999 the Company  repurchased
32,500 shares at an aggregate cost of  approximately  $147,600.  At December 31,
1999,  160,165  repurchased  shares remain  available for future use and 812,650
shares remain available for repurchase under the plan.

     Capital  expenditures and additional patent  development costs for the year
ended December 31, 1999 were  approximately  $343,200.  The Company  anticipates
capital  expenditures  of  approximately  $450,000 during the fiscal year ending
December 31, 2000.

     The  Company's  long term capital  requirements  will depend upon  numerous
factors  including  the  progress  of the  Company's  research  and  development
programs;  the resources  that the Company  devotes to  self-funded  early stage
clinical testing of SEPA-enhanced compounds,  proprietary  manufacturing methods
and advanced  technologies;  the ability of the Company to enter into additional
licensing arrangements or other strategic alliances;  the ability of the Company
to manufacture products under those arrangements and the demand for its products
or the products of its licensees or strategic  partners if and when approved for
sale by regulatory authorities.  In any event, substantial additional funds will
be  required  before the  Company is able to  generate  revenues  sufficient  to
support its  operations.  There is no assurance that the Company will be able to
obtain such  additional  funds on  favorable  terms,  if at all.  The  Company's
inability to raise  sufficient  funds could  require it to delay,  scale back or
eliminate certain research and development programs.

                                       17


     The Company  believes that its existing cash and cash  equivalents  will be
sufficient to meet its operating expenses and capital  expenditure  requirements
for at least the next twelve months.  The Company's cash  requirements  may vary
materially  from those now planned  because of changes in focus and direction of
the  Company's  research and  development  programs,  competitive  and technical
advances,  patent  developments or other  developments.  It is not believed that
inflation  will have any  significant  effect on the  results  of the  Company's
operations.

FUTURE ADOPTION OF ACCOUNTING PRONOUNCEMENTS

     In 1998,  the  Financial  Accounting  Standards  Board issued SFAS No. 133,
"Accounting  for Derivative  Instruments and Hedging  Activities."  SFAS No. 133
establishes  accounting  and  reporting  standards for  derivative  instruments,
including certain derivative  instruments  embedded in other contracts,  and for
hedging  activities.  The  provisions  of SFAS No. 133 will be effective for the
Company  beginning  January 1, 2001. The Company has not yet determined  whether
the effect of adopting SFAS No. 133 will be material to the Company's  financial
position or results of operations.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

CASH AND CASH EQUIVALENTS

     As of  December  31,  1999,  the  Company is exposed to market  risks which
relate  primarily  to  changes  in  U.S.  interest  rates.  The  Company's  cash
equivalents  are  subject  to  interest  rate risk and will  decline in value if
interest  rates  increase.   Due  to  the  short  duration  of  these  financial
instruments,  three months or less,  changes to interest  rates would not have a
material effect upon the Company's financial position. A hypothetical 10% change
in  interest  rates would  result in an  increase  or decrease of  approximately
$83,000 on interest income within the Company's statement of operations.

     THE FOREGOING STATEMENTS IN THIS REPORT INCLUDE FORWARD-LOOKING  STATEMENTS
THAT INVOLVE RISKS AND  UNCERTAINTIES.  THE COMPANY'S  ACTUAL RESULTS MAY DIFFER
SIGNIFICANTLY  FROM THE RESULTS  DISCUSSED  IN THE  FORWARD-LOOKING  STATEMENTS.
FACTORS  THAT MIGHT  CAUSE SUCH A  DIFFERENCE  INCLUDE,  BUT ARE NOT LIMITED TO,
THOSE DISCUSSED OR REFERRED TO IN ITEM 1, BUSINESS - "RISK FACTORS".

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

     The information required under this Item 8 is set forth on pages 19 through
33 of this report.



                                       18


INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Stockholders of MacroChem Corporation:

We have audited the accompanying balance sheets of MacroChem  Corporation as of
December  31,  1999  and  1998,  and  the  related   statements  of  operations,
stockholders'  equity,and  cash flows for each of the three  years in the period
ended December 31, 1999. These financial  statements are the  responsibility  of
the Company's  management.  Our responsibility is to express an opinion on these
financial statements based on our audits.

 We  conducted  our  audits  in  accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  such  financial  statements  present  fairly,  in all material
respects,  the financial position of MacroChem  Corporation at December 31, 1999
and 1998,  and the results of its  operations and its cash flows for each of the
three years in the period ended  December 31, 1999 in conformity  with generally
accepted accounting principles.



DELOITTE & TOUCHE LLP


Boston, Massachusetts
March 3, 2000



                                       19




                                                                              MACROCHEM CORPORATION
                                                                                 BALANCE SHEETS
                                                                                  DECEMBER 31,

ASSETS                             1999           1998      LIABILITIES AND STOCKHOLDERS' EQUITY               1999           1998
- ------                             ----           ----      -------------------------------------              ----           ----

                                                                                                              
CURRENT ASSETS:                                             CURRENT LIABILITIES:
  Cash and cash equivalents    $15,183,289    $20,504,097     Accounts payable and accrued expenses      $    565,080  $    771,172
  Accounts receivable               66,954         48,393     Deferred compensation and related accrued
  Receivable due from related                                   interest                                       96,233        93,563
    party                           20,960            ---                                                  ----------    ----------

  Prepaid expenses and other
    current assets                 166,482        204,181
                                ----------     ----------


    TOTAL CURRENT ASSETS        15,437,685     20,756,671       TOTAL CURRENT LIABILITIES                     661,313       864,735
                                ----------     ----------                                                  ----------    ----------

PROPERTY AND EQUIPMENT (NET)       375,464        397,483   DEFERRED REVENUE                                  500,000       500,000
                                ----------     ----------                                                  ----------    ----------

OTHER ASSETS:                                                   TOTAL LIABILITIES                           1,161,313     1,364,735
  Patents,  net                    471,390        351,110
  Deposits                          29,193          4,460   COMMITMENTS AND CONTINGENCIES (Note 5)
                                ----------     ----------

    TOTAL OTHER ASSETS             500,583        355,570   STOCKHOLDERS' EQUITY:
                                ----------     ----------     Preferred stock                                     ---           ---
                                                              Common stock, $.01 par value; authorized
                                                                60,000,000 shares; issued 22,597,564
                                                                shares,outstanding 22,437,399 shares at
                                                                December 31, 1999 and issued 22,281,245
                                                                shares,and outstanding, 22,140,328
                                                                shares atDecember 31, 1998                    225,976       222,812
                                                              Additional paid-in capital                   49,387,454    47,295,449
                                                              Unearned compensation                       (   382,473)  (   170,676)
                                                              Accumulated deficit                         (33,295,188)  (26,508,119)
                                                                                                           ----------    ----------
                                                              Total                                        15,935,769    20,839,466
                                                              Less cost of treasury stock (160,165
                                                                shares at December 31, 1999 and
                                                                140,917 shares atDecember 31, 1998)       (   783,350)  (   694,477)
                                                                                                           ----------    ----------
                                                                TOTAL STOCKHOLDERS' EQUITY                 15,152,419    20,144,989
                                                                                                           ----------    ----------

                                                            TOTAL LIABILITIES AND
TOTAL ASSETS                   $16,313,732    $21,509,724     STOCKHOLDERS' EQUITY                       $ 16,313,732  $ 21,509,724
                                ==========     ==========                                                  ==========    ==========


See notes to financial statements.


                                       20



                              MACROCHEM CORPORATION
                            STATEMENTS OF OPERATIONS


                                                              Years Ended December 31,
                                           ------------------------------------------------------

                                                  1999               1998              1997
                                                  ----               ----              ----

                                                                          
REVENUES

  Research contracts                        $    464,332       $    274,749        $    120,350
                                              ----------         ----------          ----------


OPERATING EXPENSES

  Research and development                     5,423,138          4,318,758           2,084,826
  Marketing, general and administrative        2,610,768          1,925,021           1,992,157
  Consulting fees with related parties            48,000             48,000              30,000
                                              ----------         ----------          ----------

    TOTAL OPERATING EXPENSES                   8,081,906          6,291,779           4,106,983
                                              ----------         ----------          ----------

    LOSS FROM OPERATIONS                     ( 7,617,574)       ( 6,017,030)        ( 3,986,633)
                                              ----------         ----------          ----------

OTHER INCOME (EXPENSE)

  Interest income                                833,450          1,178,825             424,742
  Interest expense                           (     2,945)       (     4,666)        (     7,222)
                                              ----------         ----------          ----------


    TOTAL OTHER INCOME                           830,505          1,174,159             417,520
                                              ----------         ----------          ----------

NET LOSS                                    $( 6,787,069)      $( 4,842,871)       $( 3,569,113)
                                              ==========         ==========          ==========

BASIC AND DILUTED NET LOSS
  PER SHARE                                 $(       .30)      $(       .22)       $(       .21)
                                              ==========         ==========          ==========

SHARES USED TO COMPUTE BASIC
  AND DILUTED NET LOSS PER
  SHARE                                       22,311,890         22,204,105          16,638,401
                                              ==========         ==========          ==========


See notes to financial statements.


                                       21




                                                                   MACROCHEM CORPORATION
                                                            STATEMENTS OF STOCKHOLDERS' EQUITY


                             Common Stock Shares
                           ------------------------    Additional                                           Cost of       Total
                                              Common    Paid-In     Unearned    Accumulated                 Treasury   Stockholders'
                         Issued    Treasury    Stock    Capital   Compensation    Deficit       Subtotal     Stock        Equity
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                            

BALANCE,
JANUARY 1, 1997        15,601,274            $156,013  $25,839,675  $(222,674)  $(18,096,135) $  7,676,879  $     ---  $  7,676,879

Exercise of common
  stock warrants        4,491,590              44,916   16,938,240        ---            ---    16,983,156               16,983,156
Exercise of common
  stock options           291,501               2,915      692,087        ---            ---       695,002                  695,002
Exercise of unit
  purchase options      1,757,500              17,575    3,058,050        ---            ---     3,075,625                3,075,625
Stock based
  compensation             41,000                 410      395,625     53,352            ---       449,387                  449,387
Net loss                      ---       ---       ---          ---        ---    ( 3,569,113)  ( 3,569,113)       ---   ( 3,569,113)
                       ----------   -------   -------   ----------    -------     ----------    ----------    -------    ----------

BALANCE,
DECEMBER 31, 1997      22,182,865             221,829   46,923,677   (169,322)   (21,665,248)   25,310,936        ---    25,310,936

Exercise of common
  stock warrants            6,342                  63       38,465                                  38,528                   38,528
Exercise of common
  stock options            91,683                 917      171,139                                 172,056                  172,056
Purchase of treasury
  stock                            (154,850)                                                                 (757,599)  (   757,599)
Stock based
  compensation                355     6,158         3      139,352   (  1,354)                     138,001     27,896       165,897
Stock issued to
  401(k) trust                        7,775                 22,816                                  22,816     35,226        58,042
Net loss                      ---       ---       ---          ---        ---    ( 4,842,871)  ( 4,842,871)       ---   ( 4,842,871)
                       ----------   -------   -------   ----------    -------     ----------    ----------    -------    ----------

BALANCE,
DECEMBER 31, 1998      22,281,245  (140,917)  222,812   47,295,449   (170,676)   (26,508,119)   20,839,466   (694,477)   20,144,989

Exercise of common
  stock warrants          137,319               1,374      832,840                                 834,214                  834,214
Exercise of common
  stock options           179,000               1,790      531,366                                 533,156                  533,156
Purchase of treasury
  stock                            ( 32,500)                                                                 (147,570)  (   147,570)
Stock based
  compensation                                             708,837   (211,797)                     497,040                  497,040
Stock issued to
  401(k) trust                       13,252                 18,962                                  18,962     58,697        77,659
Net loss                                                                         ( 6,787,069)  ( 6,787,069)             ( 6,787,069)
                       ----------   -------   -------   ----------    -------     ----------    ----------    -------

BALANCE,
DECEMBER 31, 1999      22,597,564  (160,165) $225,976  $49,387,454  $(382,473)  $(33,295,188) $ 15,935,769  $(783,350) $ 15,152,419
                       ==========   =======   =======   ==========    =======     ==========    ==========    =======    ==========




See notes to financial statements.



                                       22




                             MACROCHEM CORPORATION
                            STATEMENTS OF CASH FLOWS

                                                                    Years Ended December 31,
                                                       ---------------------------------------------------

                                                            1999              1998              1997
                                                            ----              ----              ----
                                                                                  

CASH FLOWS FROM OPERATING ACTIVITIES:
   Net loss                                             $(6,787,069)      $(4,842,871)     $( 3,569,113)
                                                          ---------         ---------        ----------
   Adjustments to reconcile net loss to net
      cash used by operating activities:
      Depreciation and amortization                         244,986           181,175           123,888
      Abandoned patent costs                                    ---             5,604               ---
      Loss on disposal of equipment                             ---               ---             1,800
      Stock-based compensation                              497,040           165,897           448,977
      401(k) contributions in company common stock           77,659            58,042               ---
      Increase (decrease) in cash from:
        Accounts receivable                              (   18,561)       (   48,393)           43,977
        Receivable due from related party                (   20,960)              ---               ---
        Prepaid expenses and other current assets            37,699        (   86,498)      (    17,650)
        Accounts payable and accrued expenses            (  206,092)          566,820       (    36,986)
        Deferred compensation and related accrued
          interest                                            2,670             3,423             2,659
        Deferred rent                                           ---               ---       (     1,014)
        Deferred revenue                                        ---           500,000               ---
                                                          ---------         ---------        ----------

        Total adjustments                                   614,441         1,346,070           565,651
                                                          ---------         ---------        ----------

Net cash used by operating activities                    (6,172,628)       (3,496,801)      ( 3,003,462)
                                                          ---------         ---------        ----------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Proceeds from sale of equipment                              ---               ---               100
   Proceeds from maturities of
      marketable securities                                     ---               ---            21,824
   Deposits                                              (   24,733)              ---               ---
   Expenditures for property and equipment               (  179,067)       (  277,445)      (    48,991)
   Additions to patents                                  (  164,180)       (  108,355)      (    62,794)
                                                          ---------         ---------        ----------

Net cash used by investing activities                    (  367,980)       (  385,800)      (    89,861)
                                                          ---------         ---------        ----------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Purchase of company stock                             (  147,570)      (   757,599)              ---
   Principal payments on capital lease                          ---       (    18,408)      (    38,630)
   Proceeds from issuance of common stock                       ---               ---               410
   Proceeds from exercise of common stock options           533,156           172,056           695,002
   Proceeds from exercise of common stock warrants          834,214            38,528        16,983,156
   Proceeds from exercise of unit purchase options              ---               ---         3,075,625
                                                          ---------         ---------        ----------

Net cash provided (used) by financing activities          1,219,800        (  565,423)       20,715,563
                                                          ---------         ---------        ----------

                                                                                            (Continued)



                                       23


                              MACROCHEM CORPORATION
                      STATEMENTS OF CASH FLOWS (Continued)



                                            Years Ended December 31,
                                ----------------------------------------------

                                     1999             1998             1997
                                     ----             ----             ----

NET (DECREASE) INCREASE IN CASH
  AND CASH  EQUIVALENTS         $(  5,320,808)   $( 4,448,024)     $17,622,240

CASH AND CASH EQUIVALENTS,
  BEGINNING OF YEAR               20,504,097       24,952,121        7,329,881
                                  ----------       ----------       ----------

CASH AND CASH EQUIVALENTS,
  END OF YEAR                   $ 15,183,289     $ 20,504,097      $24,952,121
                                  ==========       ==========       ==========



SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:

Cash paid for interest aggregated $0, $1,243, and $4,563, respectively,  for the
years ended December 31, 1999, 1998 and 1997.

The Company did not pay any income taxes during those periods.



See  notes to financial statements.                                 (Concluded)



                                       24

                              MACROCHEM CORPORATION
                          NOTES TO FINANCIAL STATEMENTS

 1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

 MacroChem  Corporation (the "Company")  develops and licenses  transdermal drug
 delivery  compounds and systems  intended to promote the delivery of drugs from
 the surface of the skin into the skin or the bloodstream.

 The Company has been engaged  primarily in research and  development  since its
 inception in 1981 and has derived limited  revenues from the commercial sale of
 its products,  licensing of certain  technology and  feasibility  studies.  The
 Company has had no  revenues  relating  to the sale of any  products  currently
 under  development.  The Company has  incurred  net losses every year since its
 inception  and  the  Company  anticipates  that  losses  may  continue  for the
 foreseeable future. At December 31, 1999, the Company's accumulated deficit was
 approximately $33.3 million. The Company's ability to continue operations after
 its current  capital  resources are exhausted  depends on its ability to obtain
 additional  financing  and  achieve  profitable  operations,  as  to  which  no
 assurances  can be given.  However,  the Company  believes  that its  financial
 resources are sufficient to meet planned operating  activities at least through
 December 31, 2000.

 The Company  organizes  itself as one segment  reporting to the chief operating
 decision  maker.  Products  and  services  consist  primarily  of research  and
 development activities in the pharmaceutical industry.

 REVENUE RECOGNITION - Revenues are earned and recognized based upon the sale or
 licensing of product rights, completion of contractually identified development
 milestones, upon shipment of product, upon completion of a contract or upon the
 attainment  of  specific  milestones  or  benchmarks  specified  in  license or
 development agreements.  Deferred revenue at December 31, 1999 and 1998 relates
 to a nonrefundable collaborative advance against future milestones, if and when
 achieved.

 RESEARCH  AND  DEVELOPMENT  - Research  and  development  costs are  charged to
 operations as incurred. Such costs include proprietary research and development
 activities and expenses associated with research and development contracts.

 CASH AND CASH  EQUIVALENTS - Cash  equivalents  consist of  short-term,  highly
 liquid investments with a maturity of three months or less when purchased.

 CONCENTRATION OF RISK - Cash and cash equivalents at December 31, 1999 and 1998
 are primarily comprised of government agency securities. Accounts receivable at
 December 31, 1999 and 1998 are due from one  customer.  100% of revenue for the
 years ended December 31, 1999 and 1998 was derived from research contracts with
 one customer.  100% of revenue for the year ended December 31, 1997 was derived
 from two customers.

 PROPERTY  AND   EQUIPMENT  -  Property  and   equipment  are  stated  at  cost.
 Depreciation and amortization are provided on the straight-line method over the
 estimated  useful  lives of the  related  assets  which  range from five to ten
 years.


                                       25


 1.  NATURE  OF  BUSINESS  AND  SUMMARY  OF  SIGNIFICANT   ACCOUNTING   POLICIES
 (CONTINUED)

 PATENTS - The  Company  has filed  applications  for United  States and foreign
 patents  covering  aspects of its  technology.  Costs and expenses  incurred in
 connection  with pending  patent  applications  are deferred.  Costs related to
 successful patent applications are amortized over the estimated useful lives of
 the  patents,   not  exceeding  20  years,  using  the  straight-line   method.
 Accumulated costs related to patents or deferred patent  application costs that
 are considered to have limited future value are charged to expense. Accumulated
 amortization aggregated  approximately $123,500 and $79,600,  respectively,  at
 December 31, 1999 and 1998.  On an on-going  basis,  the Company  evaluates the
 recoverability of the net carrying value of various patents by reference to the
 patent's  expected  use in drug and other  research  activities  as measured by
 outside  interest  in the  Company's  patented  technologies  and  management's
 determination of potential future uses of such technologies.

 INCOME  TAXES - The  Company  accounts  for  income  taxes in  accordance  with
 Statement of Financial  Accounting  Standards ("SFAS") No. 109, "Accounting for
 Income Taxes", which requires the use of the liability method. The objective of
 this  method is to  establish  deferred  tax  assets  and  liabilities  for the
 temporary  differences  between the financial reporting basis and the tax basis
 of the  Company's  assets  and  liabilities  using  tax  rates in effect in the
 year(s) in which the differences are expected to reverse.

 NET INCOME  (LOSS) PER SHARE - Basic  earnings per share is computed  using the
 weighted average number of common shares  outstanding during each year. Diluted
 earnings  per common  share  reflect  the effect of the  Company's  outstanding
 options  and  convertible   securities,   except  where  such  items  would  be
 anti-dilutive.  Due to the net losses,  reported in 1999, 1998 and 1997,  basic
 and diluted per share  amounts are the same.  For the years ended  December 31,
 1999,  1998 and 1997 potential  common shares are not included in the per share
 calculations  for diluted EPS,  because the effect of their  inclusion would be
 anti-dilutive.  Anti-dilutive  potential  shares  not  included  in  per  share
 calculations for 1999, 1998 and 1997 were  approximately  3,596,000,  3,347,000
 and 8,711,000 shares, respectively.

 ACCOUNTING  ESTIMATES - The  preparation of financial  statements in conformity
 with  generally  accepted  accounting  principles  requires  management to make
 estimates  and  assumptions  that  affect  the  reported  amounts of assets and
 liabilities and disclosure of contingent  assets and liabilities at the date of
 the  financial  statements  and the  reported  amounts of revenues and expenses
 during the reporting  period.  The primary  estimates  underlying the Company's
 financial  statements  include  the  useful  lives  of the  Company's  patents,
 property and equipment,  the valuation allowance  established for the Company's
 deferred tax assets, and the underlying  assumptions to apply the pricing model
 to value stock  options under SFAS No. 123.  Management  bases its estimates on
 certain assumptions, which it believes are reasonable in the circumstances, and
 while actual  results could differ from those  estimates,  management  does not
 believe  that any  change in those  assumptions  in the near term  would have a
 significant effect on the financial position or the results of operations.

 STOCK-BASED   COMPENSATION  -  SFAS  No.  123   ("Accounting   for  Stock-Based
 Compensation")  addresses the financial  accounting and reporting standards for
 stock or other equity-based compensation arrangements.


                                       26

 1.  NATURE  OF  BUSINESS  AND  SUMMARY  OF  SIGNIFICANT   ACCOUNTING   POLICIES
     (CONTINUED)

 The Company has elected to continue to use the intrinsic  value based method to
 account for employee  stock option  awards under the  provisions  of Accounting
 Principles Board No. 25 and provides disclosures based on the fair value method
 in the notes to the financial statements as permitted by SFAS No. 123.

 Stock or other equity based  compensation for  non-employees  must be accounted
 for under the fair value based  method as required by SFAS No. 123 and Emerging
 Issues Task Force No.96-18,  "Accounting for Equity Instruments That Are Issued
 to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods or
 Services."  Under this method,  the equity based instrument is valued at either
 the fair value of the  consideration  received  or from the  equity  instrument
 issued on the date of grant. The resulting  compensation cost is recognized and
 charged to  operations  over the service  period,  which is usually the vesting
 period.

 FUTURE  ADOPTION  OF  ACCOUNTING   PRONOUNCEMENTS  -  In  1998,  the  Financial
 Accounting  Standards  Board issued SFAS No. 133,  "Accounting  for  Derivative
 Instruments and Hedging  Activities."  SFAS No. 133 establishes  accounting and
 reporting  standards for derivative  instruments,  including certain derivative
 instruments  embedded  in other  contracts,  and for  hedging  activities.  The
 provisions of SFAS No. 133 will be effective for the Company  beginning January
 1, 2001. The Company has not yet determined whether the effect of adopting SFAS
 No. 133 will be  material  to the  Company's  financial  position or results of
 operations.

 2. PROPERTY AND EQUIPMENT

 Property and equipment consists of the following as of December 31:

                                                 1999                1998
                                                 ----                ----

     Laboratory equipment                   $   806,647         $   770,915
     Office equipment                           324,328             208,399
     Leasehold improvements                     174,305             149,249
                                              ---------           ---------
            Total                             1,305,280           1,128,563

     Less:  accumulated depreciation
            and amortization                 (  929,816)         (  731,080)
                                              ---------           ---------

     Property and equipment, net            $   375,464         $   397,483
                                              =========           =========

 3. ACCOUNTS PAYABLE AND ACCRUED EXPENSES

 Accounts payable and accrued expenses  consists of the following as of December
 31:

                                                 1999                1998
                                                 ----                ----

     Accounts payable                           $71,318            $116,246
     Accrued professional fees                  150,096             150,461
     Accrued clinical trial costs               257,125             498,716
     Accrued miscellaneous                       86,541               5,749
                                                -------             -------
                                               $565,080            $771,172
                                                =======             =======

                                       27


 4. STOCKHOLDERS' EQUITY

 AUTHORIZED  CAPITAL  STOCK - Authorized  capital  stock  consists of 60,000,000
 shares of $.01 par value  common  stock of which  22,597,564  shares are issued
 (22,437,399  are  outstanding)  and  4,867,796  are reserved for issuance  upon
 exercise of common stock options at December 31, 1999.  Authorized and unissued
 preferred  stock totals  6,000,000  shares.  On August 31, 1998,  the Company's
 Board of Directors  authorized  the  repurchase  of up to  1,000,000  shares of
 common stock at market price. The Company  repurchased  32,500 common shares in
 1999 and  154,850  common  shares  in  1998.  At  December  31,  1999,  160,165
 repurchased  shares  remain  available  for future use and  812,650  shares are
 available to be repurchased.

 STOCK  ISSUANCES - The Company had issued 142 units (the  "Units")  and options
 for an additional 118.333 Units in connection with a private placement in 1993.
 A Unit consists of an option for 30,000 shares of the Company's common stock at
 an exercise price of $1.75 per common share, 10,000 Class A warrants and 10,000
 Class AA warrants.  Each Class A and AA warrant was convertible to one share of
 the  Company's  common stock at a per share  exercise  price of $3.00 and $4.50
 respectively. Outstanding at January 1, 1997 were 58.58 options on Units all of
 which were exercised and converted  into  1,757,500  shares of common stock for
 aggregate proceeds of $3,075,625.

 WARRANTS - Outstanding  at January 1, 1997 were  1,925,566  Class A,  2,522,233
 Class AA and 185,500  Class X warrants.  Each warrant was  exercisable  for one
 share of common stock at a price per share,  subject to  adjustment,  of $3.00,
 $4.50, and $1.75,  respectively.  The Class A and Class AA warrants were issued
 subject to the 1993  private  placement.  The Class X warrants  were  issued in
 connection with a private placement occurring in 1992.

 During  1997,  1,877,666  Class A,  2,463,  924 Class AA, and  150,000  Class X
 warrants were exercised resulting in the issuance of 4,491,590 shares of common
 stock for aggregate  proceeds of  $16,983,156.  All remaining Class A, Class AA
 and Class X warrants expired unexercised during 1997.

 In 1996, in connection  with  services  performed for the Company,  the firm of
 Janssen-Meyers,  L.P. ("J-M") received a warrant,  exercisable  immediately and
 expiring  June 17, 1999,  for the purchase of 145,800  shares of the  Company's
 common stock at a price of $6.075 per share.  During 1999 and 1998, 137,319 and
 6,342 warrants were  exercised for aggregate  proceeds of $834,214 and $38,528,
 respectively.  During 1999,  2,139  warrants  expired.  Pursuant to an informal
 understanding,  the  Company  paid J-M a monthly  fee of $5,000 for  consulting
 services from December 1996 through April 1997.

 STOCK  OPTION  PLANS - The  Company  has three  stock  option  plans,  the 1984
 Incentive  Stock Option Plan (ISO Plan),  the 1984  Non-Qualified  Stock Option
 Plan (Non-Qualified Plan) and the 1994 Equity Incentive Plan (1994 Plan). Under
 the terms of the 1984 ISO and  Non-Qualified  Plans,  the Company may no longer
 award any options.  All options previously granted may be exercised at any time
 up to ten years from date of award.

 Under the terms of the 1994 Plan,  the Company may grant options to purchase up
 to a  maximum  of  4,000,000  shares  of  common  stock to  certain  employees,
 directors  and  consultants.  The  options  may be awarded as  incentive  stock
 options  (employees only) and non-incentive  stock options (certain  employees,
 directors and consultants).

                                       28


 The 1994 Plan and the ISO Plan state that the exercise  price of options  shall
 not be less than fair market value at the date of grant.  The exercise price of
 the Non-Qualified  options and the non-incentive  options from the 1994 Plan is
 determined  by the  Board of  Directors.  All  options  become  exercisable  as
 specified at the date of grant.

 The following table presents activity under all stock option plans:

                                                                WEIGHTED AVERAGE
                                         NUMBER OF OPTIONS       EXERCISE PRICE

    Outstanding January 1, 1997             3,553,525               $ 2.85
             Granted                          247,500                 7.03
             Exercised                     (  291,501)                2.38
             Expired                       (   10,000)                4.25
             Canceled                      (   87,820)                5.68
                                            ---------

    Outstanding December 31, 1997           3,411,704                 3.13
             Granted                          574,200                10.14
             Exercised                     (   91,683)                1.88
             Canceled                      (   46,500)                7.17
                                            ---------

    Outstanding December 31, 1998           3,847,721                 4.16
             Granted                          573,750                 6.73
             Exercised                     (  179,000)                2.98
             Canceled                      (  243,180)                7.15
                                            ---------

    Outstanding December 31, 1999           3,999,291                 4.40
                                            =========

    Exercisable at December 31: 1999        3,230,070                 3.48
                                            =========
                                1998        3,065,518                 2.89
                                            =========
                                1997        2,867,204                 2.58
                                            =========

 The weighted  average fair values of options granted during 1999, 1998 and 1997
 were $5.53, $8.38 and $5.83, respectively.

 All options  granted  during the three year period ended December 31, 1999 were
 granted at the market price of the stock.

 The  fair  value of  options  on  their  grant  date  was  measured  using  the
 Black/Scholes  option pricing model. Key assumptions used to apply this pricing
 model are as follows:

                                              1999         1998         1997
                                              ----         ----         ----

    Risk-free interest rate                5.01%-6.46%  4.08%-5.88%  5.35%-7.14%
    Expected life of option grants          10 years      10 years    10 years
    Expected volatility of underlying
      stock                                62.5%-95.6%   71%-112.4%  65.3%-87.7%
    Expected dividend payment rate, as a
      percentage of the stock price on
      the date of grant                        ---         ---           ---

 It should be noted that the option  pricing  model used was  designed  to value
 readily tradable stock options with relatively short lives. The options granted
 to employees are not tradable and have contractual lives of up to ten years.

                                       29


 The following table sets forth  information  regarding  options  outstanding at
 December 31, 1999:



                                                 Weighted Ave.                    Weighted Ave.
    Range of        Number of         Number    Exercise Price-   Weighted Ave.  Exercise Price-
    Exercise         Options        Currently      Options         Remaining       Currently
     Prices        Outstanding     Exercisable   Outstanding        Life          Exercisable
 ------------------------------------------------------------------------------------------------
                                                                     
      $0.43         1,254,080       1,254,080      $ 0.43            1.17           $ 0.43
   $1.50-$2.00         30,666          30,666      $ 1.69            1.03           $ 1.69
   $2.75-$4.00        543,920         543,920      $ 3.56            4.24           $ 3.08
 $4.875-$5.9375     1,370,175       1,069,675      $ 5.21            4.93           $ 5.59
  $6.064-$8.25        432,450         206,729      $ 8.09            9.14           $ 7.16
  $9.00-$12.688       368,000         125,000      $12.00            8.36           $12.01
                    ---------       ---------
 TOTAL              3,999,291       3,230,070
                    =========       =========


 The Company uses the  intrinsic  value method to measure  compensation  expense
 associated with grants of stock options to employees and, prior to December 15,
 1995, to suppliers of goods and  services.  Had the Company used the fair value
 method to measure compensation, the reported net loss and basic and diluted net
 loss per share would have been as follows:

                                    1999            1998              1997
                                    ----            ----              ----

    Net loss as reported        $(6,787,070)    $(4,842,871)      $(3,569,113)
    Compensation costs:
         Employee                (2,270,636)     (2,183,916)       (2,495,545)
         Non-Employee                   ---      (   26,488)       (   31,785)
                                  ---------       ---------         ---------

    Proforma net loss           $(9,057,706)    $(7,053,275)      $(6,096,443)
                                  =========       =========         =========
    Proforma basic and diluted
         net loss per share     $(     0.41)    $(     0.32)      $(     0.37)
                                  =========       =========         =========

 It should be noted that the  proforma  amounts  presented  above are inexact in
 that the pricing model was designed to value freely-traded  options rather than
 employee  stock  options.  Proforma  charges may be  understated in relation to
 future years since these proforma  charges do not reflect the financial  impact
 of options granted prior to 1995.

 UNEARNED  COMPENSATION  - The  following  table sets  forth the  changes to the
 Company's reported unearned compensation for the years ended December 31, 1999,
 1998 and 1997:
                                               1999        1998          1997
                                               ----        ----          ----

    Balance, January 1                        170,676   $ 169,322     $ 222,674
    Common stock granted to non-employees
       below fair market value                    ---         ---       286,071
    Options, warrants and common stock
      granted to non-employees at fair
      market value                            807,888     117,248       378,422
    Amortization of unearned compensation    (497,040)   (115,894)     (448,977)
    Unearned compensation forfeited          ( 99,051)        ---      (268,868)
                                              -------     -------       -------
    Balance, December 31                    $ 382,473   $ 170,676     $ 169,322
                                              =======     =======       =======


                                       30




 STOCK AND STOCK OPTION ISSUANCES -During 1997, the Company issued 41,000 common
 shares  to  non-employees   below  fair  market  value  and  recorded  unearned
 compensation  of $286,071  related to these shares.  Also in 1997,  the Company
 recorded an additional  $378,422 of unearned  compensation  related to options,
 warrants  and common stock  issued or granted to  non-employees  at fair market
 value.

 During 1998, the Company issued 355 shares to non-employees at market value and
 recorded earned compensation related to the shares of $4,504. Also in 1998, the
 Company  recorded  unearned  compensation  related  to the  issuance  of 20,000
 options to non-employees of $112,744.

 During 1998,  the Company  issued 6,158 common  shares and recorded  $50,000 as
 compensation for services rendered to the Company.

 During 1999, the Company issued 129,000 options to non-employees at fair market
 value and recorded unearned compensation of $807,888 related to these shares.

 SHAREHOLDER  RIGHTS PLAN - The Company has adopted a  shareholder  rights plan.
 The  Company  declared  a  dividend  consisting  of one Right for each share of
 common stock  outstanding  on September 10, 1999.  Stock issued after that date
 will be issued with an attached Right.

 Each Right will entitle the holder,  upon the occurrence of certain events,  to
 purchase  1/100th of a share of Series B  Preferred  Stock of the Company at an
 initial  exercise price of $50.00,  subject to adjustments for stock dividends,
 splits and similar events.  The Rights will be exercisable  only if a person or
 group  acquires  20% or more of the  Company's  outstanding  common  stock,  or
 announces an intention to commence a tender or exchange offer, the consummation
 of which would  result in  ownership  by such person or group of 20% or more of
 the Company's outstanding common stock.

 The Board of Directors  may, at its option after the  occurrence  of one of the
 events  described  above,  exchange all of the then outstanding and exercisable
 Rights for shares of common  stock at an exchange  ratio of one share of common
 stock per Right.

 The Board of Directors may redeem the Rights at the  redemption  price of $0.01
 per Right at any time prior to the  expiration of the rights plan on August 13,
 2009. Distribution of the Rights is not a taxable event to shareholders.

 The Board of  Directors  has  authorized  600,000  shares of Series B Preferred
 Stock.

 5. COMMITMENTS AND CONTINGENCIES

 LEASE  COMMITMENTS  - The  Company  renegotiated  its  lease  which was to have
 expired  on  February  28,  2000 for its  operating  facility.  The new  lease,
 effective  December 15, 1999,  expires February 28, 2005. At December 31, 1999,
 future minimum lease payments under this lease  agreement are as follows:

                              2000      $403,800
                              2001      $425,800
                              2002      $438,600
                              2003      $451,800
                              2004      $465,300
                              2005      $ 78,400

                                       31


 Total rental  expense under all operating  leases was  approximately  $211,300,
 $187,400 and $162,500 for the years ended  December 31, 1999,  1998,  and 1997,
 respectively.

 The Company sublets 1,778 square feet of total rented space to Eastern Research
 Group,  Inc. The sublease,  effective  January 1, 2000, is coterminous with the
 Company's lease. Future minimum sublease payments are as follows:

                              2000      $42,785
                              2001      $43,816
                              2002      $45,135
                              2003      $46,489
                              2004      $47,879
                              2005      $ 8,069

 EMPLOYMENT  AND  CONSULTING   AGREEMENTS  -  The  Company  has  employment  and
 consulting agreements with various consultants and certain key employees,  with
 terms ranging from one year to an indefinite  period of time.  These agreements
 provide for annual payments of  approximately  $816,000.  In addition,  certain
 consulting   agreements  also  provide  for  additional   payments  to  certain
 consultants related to obtaining a financial placement or the sale or licensing
 of the Company's product or technology to third parties. During the years ended
 December 31, 1999, 1998 and 1997, no such additional amounts were earned by the
 related consultants.

 ROYALTY  AGREEMENTS - The Company has entered into various  license  agreements
 which  require  the Company to pay  royalties  based upon a set  percentage  of
 certain product sales and license fee revenue.  There were no such amounts paid
 in 1999, 1998 and 1997.

 6. Income Taxes

 No income tax  provision or benefit has been  provided  for federal  income tax
 purposes as the Company has incurred losses since inception. As of December 31,
 1999,   the  Company  has  available  net  operating  loss   carryforwards   of
 approximately  $31.6 million for federal income tax purposes,  expiring through
 2019 and $19.0 million for state income tax purposes, expiring through 2004. In
 addition,  the Company has unused  investment and research and  development tax
 credits for federal and state  income tax  purposes  aggregating  $776,400  and
 $484,700,  respectively.  The use of the federal net operating loss may also be
 restricted due to changes in ownership in accordance with definitions as stated
 in the Internal Revenue Code.

 The net tax effect of differences in the timing of certain  revenue and expense
 items and the related  carrying amounts of assets and liabilities for financial
 reporting and tax purposes are not material and, accordingly, are not displayed
 in the table below.  The components of the Company's  deferred tax assets as of
 December 31, 1999 and 1998 are as follows:

                                              1999                  1998
                                              ----                  ----
     Deferred Tax Assets:
       Net operating loss carryforwards    12,557,000            10,300,000
       Tax credit carryforwards             1,261,000               511,800
                                           ----------            ----------
                                           13,818,000            10,811,800
     Valuation allowance                  (13,818,000)          (10,811,800)
                                           ----------            ----------
     Deferred tax asset, net             $        ---          $        ---
                                           ==========            ==========


                                       32


 For the years ended December 31, 1999,  1998 and 1997, the valuation  allowance
 was  increased  by  approximately  $3,006,200,   $2,418,800,   and  $1,340,000,
 respectively,  due  to the  uncertainty  of  future  realization  of  currently
 generated net operating loss and tax credit carryforwards.

 7. EMPLOYEE BENEFIT PLAN

 In 1998,  the Company  established  a  qualified  401(k)  Retirement  Plan (the
 "Plan") under which employees are allowed to contribute certain  percentages of
 their pay, up to the  maximum  allowed  under  Section  401(k) of the  Internal
 Revenue Code.  Company  contributions  to the Plan are at the discretion of the
 Board of Directors.  The Company  contributed  13,252 shares of common stock in
 1999 and 7,775 shares of commons stock in 1998,  valued at $77,659 and $58,042,
 respectively.


                                       33




 ITEM 9.  CHANGES  IN AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND
          FINANCIAL DISCLOSURE.

     Not applicable.

PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The following table sets forth the year each Director was first elected and
the  age,  positions,  and  offices  presently  held by each  Director  with the
Company:

                               Year First
Name                  Age   Became a Director      Position with Company
- --------------------------------------------------------------------------------

Carlos M. Samour .....79         1981        Chairman of the Board of Directors
                                             and  Scientific Director

Alvin J. Karloff......68         1990        Chief Executive Officer, President
                                             and Director

Willard M. Bright ....86         1993        Director

Peter G. Martin.......51         1995        Director

Michael A. Davis......59         1997        Director and Consultant

     The following is a brief summary of the  background of each Director of the
Company:

     CARLOS M. SAMOUR,  PH.D., the Company's  Chairman of the Board of Directors
and its Scientific  Director,  founded the Company in 1981.  From 1958 until the
formation of the Company,  Dr.  Samour was  director of the  corporate  research
laboratory at The Kendall  Company,  a general medical supply  company,  and its
Lexington Laboratory after Kendall was acquired by Colgate-Palmolive Corporation
in  1972.  Dr.  Samour  is  the  inventor  of  many  of the  technologies  under
development by the Company and is responsible for managing  research and product
development activities.  He received an M.S. from the Massachusetts Institute of
Technology and a Ph.D. in organic chemistry from Boston University.

     ALVIN J. KARLOFF has served as the Company's  Chief  Executive  Officer and
President and as a Director  since January 1990. In 1986,  Mr.  Karloff  founded
Medical and Scientific  Enterprises,  Inc., a privately held medical  diagnostic
equipment  company,  where he served as Chairman,  Chief  Executive  Officer and
President  prior to joining the Company.  Mr.  Karloff was Director of Marketing
for Medical  Products with New England Nuclear ("NEN"),  a Dupont company,  from
1984 to 1985,  and from  1969 to 1984,  he served as  Marketing  Manager,  Sales
Manager, and in several other sales and marketing positions for NEN. Mr. Karloff
received a B.S. from the University of Massachusetts.


                                       34


     WILLARD M.  BRIGHT,  PH.D.,  has served as a Director of the Company  since
December  1992.  Since 1982,  Dr. Bright has served as a Director  (from 1982 to
July 1996 as Chairman of the Board of Directors) of Zoll Medical Corporation,  a
publicly  held medical  supply  company.  Prior to 1982,  Dr.  Bright  served as
President and Chief Executive  Officer of The Kendall  Company;  as President of
the Professional Products Division of Warner Lambert; as President of Boehringer
Manheim  Corporation USA, a manufacturer of medical  products and  biochemicals;
and as  President  and  Director of  Curtiss-Wright  Corp.,  a  manufacturer  of
aerospace and industrial products.  Dr. Bright received a B.S. and M.S. from the
University of Toledo and a Ph.D. in physical chemistry from Harvard University.

     PETER G. MARTIN has served as a Director of the Company  since 1995.  Since
1990  Mr.  Martin  has  been  an  independent   investment  banker  and  venture
capitalist.  Prior to 1990 he was a commercial  banker. Mr. Martin was initially
elected  to the  Board  of  Directors  as the  designee  of David  Russell,  who
privately  purchased 1 million shares of the Company's Common Stock in 1995. Mr.
Russell is no longer entitled to designate a Director of the Company. Mr. Martin
received a B.A. and J.D.  from Fordham  University  and an M.B.A.  from Columbia
University.

     MICHAEL A.  DAVIS,  M.D.,  SC.D.,  has served as a Director  of the Company
since 1997 and has provided medical and  pharmaceutical  consulting  services to
the Company since 1991. Since 1980 Dr. Davis has been Professor of Radiology and
Nuclear Medicine and Director,  Division of Radiologic  Research,  University of
Massachusetts  Medical School. From 1982 to 1997 Dr. Davis was Adjunct Professor
of Surgery at Tufts University School of Veterinary Medicine.  Since 1986 he has
been  Affiliate  Professor of Biomedical  Engineering  at Worcester  Polytechnic
Institute.  He is also a director of EZ EM,  Inc., a public  company  engaged in
supplying oral  radiographic  contrast  media,  as well as medical  devices.  In
addition,  from February to November  1999 he was President and Chief  Executive
Officer  of  Amerimmune  Pharmaceuticals,  Inc.,  formerly  known as  Versailles
Capital  Corporation,  a  public  company,  and  its  wholly  owned  subsidiary,
Amerimmune  Inc.,  which is engaged in developing  drugs  relating to the immune
system.  Since  February  1999 Dr. Davis has been a director of both  Amerimmune
Pharmaceuticals,  Inc. and  Amerimmune  Inc.. Dr. Davis received a B.S. and M.S.
from Worcester Polytechnic Institute,  an S.M. and Sc.D. from the Harvard School
of Public Health, an M.B.A.  from  Northeastern  University and an M.D. from the
University of Massachusetts Medical School.

EXECUTIVE OFFICERS

     The executive officers of the Company,  their ages and their positions with
the Company are as follows:

Name                  Age                 Position with Company
- --------------------------------------------------------------------------------

Carlos M. Samour.......79    Chairman of the Board of Directors and Scientific
                             Director
Alvin J. Karloff.......68    Chief Executive Officer, President and Director
Paul J. Schechter......60    Vice President, Drug Development & Regulatory
                             Affairs
Kenneth L. Rice, Jr... 46    Vice President, Chief Financial Officer, Treasurer
                             and Secretary


                                       35


     The following is a brief summary of the  backgrounds  of Dr.  Schechter and
Mr. Rice. The backgrounds of the Company's other executive officers,  Dr. Samour
and Mr. Karloff, are summarized above.

     PAUL  J.  SCHECHTER,  M.D.,  PH.D.,  the  Company's  Vice  President,  Drug
Development  and  Regulatory  Affairs since May 1998, was from 1973 to 1990 with
Merrell Dow Research Institute, where he attained the position of Vice President
for  Clinical  Research.  He  went  on to  become  Vice  President  of  Fujisawa
Pharmaceutical Company from 1990 to 1993. Most recently he served as Senior Vice
President, Drug Development with Hybridon, Inc. from 1993 to 1997. Dr. Schechter
holds an M.D. and Ph.D.  in  Pharmacology  from the  University of Chicago and a
B.S. from Columbia University, College of Pharmacy.

     KENNETH L. RICE,  JR., Vice  President and Chief  Financial  Officer of the
Company since August 1999 and Treasurer and Corporate  Secretary  since February
2000, has held executive  financial and operating  positions at a number of life
sciences and computer services firms. Most recently Mr. Rice was Vice President,
Finance and  Administration,  Chief  Financial  Officer &  Secretary  at Pentose
Pharmaceuticals,  Inc.  from 1998 to 1999.  Mr. Rice held  similar  positions at
Unisyn Technologies,  Inc. (1993 to 1998, Senior Vice President, CFO and General
Counsel).  Mr. Rice spent his early  career at Millipore  Corporation,  where he
attained the  position of Corporate  Tax  Director.  Mr. Rice holds an LL.M.  in
Taxation from Boston  University Law School,  a J.D. from Suffolk Law School and
an M.B.A. and B.S.B.A. from Babson College.

SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

     Section 16(a) of the Securities Exchange Act of 1934 requires the Company's
officers and directors, and persons who beneficially own more than 10 percent of
the Company's Common Stock to file reports of ownership and changes in ownership
with the Securities and Exchange  Commission.  Based solely on its review of the
copies of such reports received by it, and written  representations from certain
reporting  persons that no Forms 5 were required for those persons,  the Company
believes  that during 1999 all filing  requirements  applicable to its officers,
directors, and such 10 percent beneficial owners were complied with, except that
Peter Martin filed one late report covering an acquisition made in 1999.

                                       36




ITEM 11.  EXECUTIVE COMPENSATION.

EXECUTIVE OFFICERS' COMPENSATION

     The  following  table  sets  forth  the  compensation  earned by or paid or
awarded to Dr. Samour, Mr. Karloff and Dr. Riggi during each of the three fiscal
years ended December 31, 1999 and to Dr. Schechter during each of the two fiscal
years ended December 31, 1999:



                           SUMMARY COMPENSATION TABLE
                                                                              Long Term
                                        Annual Compensation              Compensation Awards
- ------------------------------------------------------------------------------------------------
                                                                      Securities
                                                       Other Annual   Underlying    All Other
Name and Principal                  Salary     Bonus   Compensation    Options     Compensation
Position                  Year        $        $(1)       $(2)            #           $(3)
- ------------------------------------------------------------------------------------------------
                                                                  

Carlos M. Samour          1999      250,000   45,000     10,606          -----       5,000
  Chairman, Scientific    1998      237,538   42,757     10,889          -----       5,000
  Director                1997      198,749   35,775     10,894          -----       -----

 Alvin J. Karloff         1999      250,000   45,000     10,955          -----       5,000
  President, Chief        1998      237,563   42,761     13,453          -----       5,000
  Executive Officer       1997      198,749   35,775     13,046          -----       -----

Stephen J. Riggi          1999(4)   106,788    -----      -----          -----      71,337
  Former Vice             1998      175,000    -----      1,175          -----       5,000
  President, Operations   1997      159,167    -----        490          -----       -----

Paul J. Schechter         1999      182,500    -----      -----         50,000       5,000
  Vice President,         1998(5)   116,667    -----        392        180,000       5,000
  Drug Development
  & Regulatory Affairs

- ------------------------------------------------------------------------------------------------
<FN>
(1)  Since March 1992, Dr. Samour and Mr. Karloff have each received, in lieu of
     retirement  benefits,  annual  payments equal to eighteen  percent of their
     salaries.

(2)  Includes amounts paid for taxable group term life insurance.  Also includes
     for Dr. Samour and Mr. Karloff a monthly automobile allowance of $799, plus
     a health insurance benefit equal to the annual premium each individual pays
     under  separate  health  insurance  policies  maintained  by  their  former
     employers,  which  health  insurance  benefit  is paid in lieu of any other
     health, medical or retirement benefits.

(3)  For Dr. Samour, Mr. Karloff and Dr. Schechter,  represents the dollar value
     of Company contributions to the Company's 401(k) Retirement Plan, which was
     established  in 1998. For Dr. Riggi,  represents  $68,212 paid to Dr. Riggi
     for  consulting  services  to the  Company  from  August 11,  1999  through
     December 31, 1999  pursuant to an agreement  with the Company and $3,125 of
     Company  contributions  to the Company's 401(k)  Retirement  Plan.  Company
     contributions to the 401(k) Retirement Plan are made in its common stock.

(4)  Dr. Riggi resigned as Director and officer on August 10, 1999.

(5)  Dr. Schechter's employment commenced on May 1, 1998.
</FN>


                                       37


STOCK OPTIONS

     The following  table  provides  information  concerning  the grant of stock
options during 1999 to Dr.  Schechter (no stock options were granted during 1999
to Dr. Samour, Mr. Karloff or Dr. Riggi):



                                  OPTION GRANTS IN LAST FISCAL YEAR

                                          Individual Grants
                                  ----------------------------------
                                                                            Potential
                                                                            Realizable
                                                                              Value
                                                                            at Assumed
                                                                           Annual Rates
                     Number of    % of Total                              of Stock Price
                    Securities     Options     Exercise                  Appreciation for
                    Underlying    Granted to    or Base                     Option Term
                     Options     Employees in    Price    Expiration       5%        10%
Name                 Granted (#)  Fiscal Year   ($/Sh)       Date         ($)        ($)
- ------------------------------------------------------------------------------------------
                                                                 

Paul J. Schechter    50,000(1)        9%         7.81    January 2009   216,000    622,000

- ------------------------------------------------------------------------------------------
<FN>
(1)  The option  granted to Dr.  Schechter was granted in January 1999 under the
     Company's  1994 Equity  Incentive  Plan at an  exercise  price of $7.81 per
     share.  The option  expires ten years from the date of grant and vests with
     respect to 25,000 shares in January in each of 2000 and 2001.
</FN>


     The following table provides  information  concerning  unexercised  options
held by Dr. Samour, Mr. Karloff,  Dr. Riggi and Dr. Schechter as of December 31,
1999 (no options were  exercised by these  persons  during the fiscal year ended
December 31, 1999):

                    AGGREGATED FISCAL YEAR-END OPTION VALUES

                Number of Securities Underlying        Value of Unexercised
                    Unexercised Options at            In-The-Money Options at
                      Fiscal Year-End #                Fiscal Year-End $ (1)
- --------------------------------------------------------------------------------
                        Exercisable/                     Exercisable/
Name                    Unexercisable                    Unexercisable
- --------------------------------------------------------------------------------
Carlos M. Samour (2)    695,080/     NA                 $  685,050/ NA
Alvin J. Karloff      1,080,000/     NA                 $2,535,000/ NA
Stephen J. Riggi        180,000/     NA                 $        0/ NA
Paul J. Schechter        60,000/170,000                 $        0/  0
- --------------------------------------------------------------------------------
(1)  The value of Dr. Samour's,  Mr. Karloff's,  Dr. Riggi's and Dr. Schechter's
     in-the-money  unexercised  options  at the  end of the  fiscal  year  ended
     December 31, 1999 was determined by multiplying  the number of options held
     by the difference  between the market price of the Common Stock  underlying
     the options on December 31, 1999 ($4.1875 per share) and the exercise price
     of the options granted.

(2)  Does not include options to purchase 300,000 shares of Common Stock granted
     to  Pierrette  Samour,  Dr.  Samour's  wife,  of which he is deemed to have
     beneficial  ownership.  If such 300,000  options were included,  Dr. Samour
     would be deemed to have had a total of  995,080  exercisable  options as of
     December 31, 1999, the value of which would have been $1,435,050.


                                       38


DIRECTORS' COMPENSATION

     Each non-employee  Director of the Company receives  compensation of $6,000
annually, $1,000 per meeting attended, $500 for each committee meeting attended,
$300 per telephone  meeting and  reimbursement  of travel expenses in connection
with  attending  meetings  of  the  Board  of  Directors.  Dr.  Bright  receives
additional Director compensation of $1,000 per month. Dr. Samour and Mr. Karloff
do not receive any  additional  compensation  for their  services as  Directors.
During 1999 no stock options were granted to any non-employee Director.

     The Company currently compensates Dr. Davis at the rate of $3,000 per month
for medical and pharmaceutical consulting services.

EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT AND CHANGE-IN-CONTROL
ARRANGEMENTS

     The Company has entered into  employment  agreements of  indefinite  length
effective as of November 1, 1992 with each of Dr. Samour and Mr.  Karloff.  Each
agreement currently provides for annual compensation of $250,000. Each agreement
also  provides  for a monthly  automobile  allowance  of $500 net of taxes and a
payment, in lieu of retirement  benefits,  equal to 18% of the individual's base
salary. Further, each agreement provides for the payment of 12 months' salary in
the  event the  individual  is  terminated  without  cause.  In  addition,  each
agreement was amended in 1999 to preclude the individual from competing with the
Company during his employment and for a period of two years thereafter, and from
disclosing confidential information.

     The Company has entered into an employment  agreement of indefinite  length
effective  as of June 8,  1999  with  Dr.  Schechter.  The  agreement  currently
provides for annual  compensation of $190,000 and for the payment of six months'
salary in the event he is terminated  without cause. In addition,  the agreement
precludes Dr.  Schechter  from  competing with the Company during his employment
and for a period  of two  years  thereafter,  and from  disclosing  confidential
information.

     The Company and Dr. Riggi entered into a two-year agreement effective as of
August 10, 1999 in connection with his resignation as an officer and Director of
the  Company.  Under the  agreement,  the Company  has  engaged  Dr.  Riggi as a
consultant.  Payment to Dr. Riggi for the first six months was at the annualized
rate of $175,000, and for the remaining 18 months will be at the annualized rate
of  $87,500.  During  the term of the  agreement,  Dr.  Riggi will  receive  all
benefits  provided  to him by the  Company  as of August  10,  1999,  other than
participation in the Company's 401(k) plan, vacation accrual and other paid time
off. The agreement  also extends Dr.  Riggi's right to exercise all  outstanding
stock options awarded to him under the Company's 1994 Equity  Incentive Plan, as
amended,  for 24 months after August 10, 1999. Pursuant to the agreement and the
Employment Agreement between Dr. Riggi and the Company, dated March 25, 1996 and
the Proprietary  Information and Inventions  Agreement dated March 25, 1996, Dr.
Riggi is  precluded  from  competing  with the Company for a period of two years
commencing on August 10, 1999 and from disclosing confidential information.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

     The Company's Compensation Committee consists of Dr. Davis (Chairman),  Dr.
Bright and Mr. Martin.

                                       39


ITEM 12.  SECURITIES OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

     The following  table sets forth, as of March 1, 2000,  certain  information
concerning  ownership of the Company's  common stock by (i) each person known by
the Company to be the  beneficial  owner of more than five  percent  (5%) of the
Company's common stock, (ii) each of the Company's Directors,  (iii) each of the
executive  officers  named in the Summary  Compensation  Table under  "Executive
Officers' Compensation' above and (iv) all Directors and executive officers as a
group. Except as otherwise indicated,  the stockholders listed in the table have
sole voting and investment powers with respect to the shares indicated.

NAME AND ADDRESS                          NUMBER OF SHARES
OF BENEFICIAL OWNER (1)                  BENEFICIALLY OWNED  PERCENTAGE OF CLASS
- --------------------------------------------------------------------------------
Carlos M. and Pierrette E. Samour(2)(3)...   1,459,400                6.5%
Alvin J. Karloff(2)(3)....................   1,080,000                4.8%
Willard M. Bright(2) .....................      86,800                 *
Peter G. Martin(2) .......................      59,270                 *
Michael A. Davis(2).......................      35,000                 *
Paul J. Schechter(2)(3)...................     145,000                 *
Stephen J. Riggi(2)(3)....................     180,000                 *
Peter Janssen.............................   1,357,017                6.0%
   1780 Route 106
   Muttontown, NY 11791
All Directors and Officers as a Group
   (7 persons)(2)(3)......................   3,045,470               13.6%
- --------------------------------------------------------------------------------
* Less than one percent (1%).
(1)  The address of Dr. Samour,  Mrs.  Samour,  Mr.  Karloff,  Dr.  Bright,  Mr.
     Martin,  Dr. Davis,  Dr.  Schechter  and Dr. Riggi is c/o the Company,  110
     Hartwell Avenue, Lexington, Massachusetts 02421.
(2)  Includes  the  following  numbers of shares  issuable  upon the exercise of
     stock options exercisable within 60 days: Dr. and Mrs. Samour-995,080;  Mr.
     Karloff-1,080,000;  Dr. Bright-60,000; Mr. Martin-40,000; Dr. Davis-35,000;
     Dr. Schechter-145,000; Dr. Riggi-180,000.
(3)  Does not include the  following  numbers of vested  shares in the Company's
     401(k)  Plan   contributed  by  the  Company  to  match  portions  of  cash
     contributions   by  the   following   Plan   participants:   Dr.  and  Mrs.
     Samour-2,053; Mr. Karloff-1,524; Dr. Schechter-1,524; Dr. Riggi-1,121.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

     Not applicable.


                                       40


PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON
          FORM 8-K.

(a)(1) The following  Financial  Statements as of December 31, 1999 and 1998 and
for the three years in the period ended December 31, 1999 are filed herewith:

                                                      Page
      Independent Auditors' Report                     19
      Balance Sheets                                   20
      Statements of Operations                         21
      Statements of Stockholders' Equity               22
      Statements of Cash Flows                       23-24
      Notes to Financial Statements                  25-33

(a)(2) The following Financial Statement Schedules are filed herewith:

     None.

     Schedules not included  herein are omitted  because they are not applicable
or the  required  information  appears  in the  Financial  Statements  or  Notes
thereto.

(a)(3) The following  exhibits are filed  herewith or are  incorporated  by
reference as may be indicated:

3a  Certificate  of  Incorporation  as amended,  incorporated  by  reference  to
exhibits to the  Company's  Quarterly  Report on Form 10-Q for the quarter ended
September 30, 1997.

3b Amended and Restated By-Laws of the Company, incorporated by reference to
exhibits to the Company's Current Report on Form 8-K dated August 13, 1999.

4a  Stock  Purchase  Warrant,  incorporated  by  reference  to  exhibits  to the
Company's Annual Report on Form 10-K for the year ended December 31, 1996.

4b Rights Agreement dated as of August 13, 1999 between the Company and American
Stock Transfer & Trust Company,  as Rights Agent,  including Form of Certificate
of Designation  with respect to the Series B Preferred Stock, par value $.01 per
share  (attached  as  Exhibit  A  to  the  Rights  Agreement),  Form  of  Rights
Certificate  (attached  as Exhibit B to the Rights  Agreement),  and  Summary of
Rights  (attached  as  Exhibit  C to  the  Rights  Agreement),  incorporated  by
reference to exhibits to the Company's  Current  Report on Form 8-K dated August
13, 1999.

4c  Common Stock Certificate, filed herewith.

10.10.1           1994  Equity  Incentive  Plan as amended  November  14,  1997,
                  incorporated by reference to exhibits to the Company's  Annual
                  Report on Form 10-K for the year ended December 31, 1997.*

                                       41


10.10.2           1984  Non-Qualified  Stock Option Plan as amended November 15,
                  1996,  incorporated  by reference to exhibits to the Company's
                  Annual  Report on Form 10-K for the year  ended  December  31,
                  1996.*

10.10.2           1984 Incentive Stock Option Plan as amended November 15, 1996,
                  incorporated by reference to exhibits to the Company's  Annual
                  Report on Form 10-K for the year ended December 31, 1996.*

10a   Form of Employment Agreement between the Company and Dr. Carlos M. Samour,
incorporated by reference to exhibits to the Company's  Registration Statement
on Form S-1 (No. 33-62042).*

10a.1  Amendment to Employment  Agreement  between the Company and Dr. Carlos M.
Samour,  incorporated by reference to exhibits to the Company's Quarterly Report
on Form 10-Q for the quarter ended June 30, 1999.*

10b  Form of Employment  Agreement between the Company and Mr. Alvin J. Karloff,
incorporated by reference to exhibits to the Company's Registration Statement on
Form S-1 (No. 33-62042).*

10b.1  Amendment to Employment  Agreement  between the Company and Mr. Alvin J.
Karloff, incorporated by reference to exhibits to the Company's Quarterly Report
on Form 10-Q for the quarter ended June 30, 1999.*

10c  Form of Employment  Agreement between the Company and Dr. Stephen J. Riggi,
incorporated  by reference to exhibits to the  Company's  Annual  Report on Form
10-K for the year ended December 31, 1996.*

10c.1   Letter  Agreement  dated  August 10,  1999  between  the Company and Dr.
Stephen J.  Riggi,  incorporated  by  reference  to  exhibits  to the  Company's
Quarterly Report of Form 10-Q for the quarter ended September 30, 1999.*

10d  Form of Employment Agreement between the Company and Dr. Paul J. Schechter,
incorporated by reference to exhibits to the Company's  Quarterly Report on Form
10-Q for the quarter ended June 30, 1999.*

10e  Form of Employment  Agreement  between the Company and Mr. Kenneth L. Rice,
filed herewith.*

10.11  Lease between GLB Lexington Limited  Partnership and the Company dated as
of July 21, 1999, for space located at 110 Hartwell Avenue, Lexington, MA 02421,
filed herewith.

23.1  Consent of Deloitte & Touche LLP

27  Financial Data Schedule


                                       42


(b)  No current reports on Form 8-K were filed in the  three-month  period ended
December 31, 1999.




- --------------------------
*Management contract or compensatory plan or arrangement



                                       43

                                   SIGNATURES


     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

                                           MACROCHEM CORPORATION

Dated:  March 30, 2000                By:  /s/  Alvin J. Karloff
                                           ---------------------
                                           Alvin J. Karloff
                                           President and Chief Executive Officer



     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
registrant in the capacities indicated on March 30, 2000. .

/s/  Alvin J. Karloff     Chief Executive Officer, President,
- ---------------------     and Director
Alvin J. Karloff


/s/  Kenneth L. Rice      Vice President and Chief Financial Officer
- ---------------------
Kenneth L. Rice


/s/  Carlos M. Samour     Chairman of the Board of Directors
- ----------------------    and Scientific Director
Carlos M. Samour, Ph.D.


/s/  Willard M. Bright    Director
- ----------------------
Willard M. Bright, Ph.D.


/s/  Peter G. Martin      Director
- ----------------------
Peter G. Martin


/s/  Michael A. Davis     Director
- ----------------------
Michael A. Davis, M.D.


                                       44