As filed with the Securities and Exchange Commission on December 19, 2003
                                                    Registration No. 333-[_____]

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

                             ----------------------

                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                             ----------------------

                          DISCOVERY LABORATORIES, INC.
             (Exact Name of Registrant as Specified in its Charter)

           Delaware                                      94-3171943
(State or Other Jurisdiction of          (I.R.S. Employer Identification Number)
        Incorporation)

                        350 South Main Street, Suite 307
                         Doylestown, Pennsylvania 18901
   (Address, Including Zip Code and Telephone Number, Including Area Code, of
                   Registrant's Principal Executive Offices)

                            Robert J. Capetola, Ph.D.
                             Chief Executive Officer
                        350 South Main Street, Suite 307
                         Doylestown, Pennsylvania 18901
                                 (215) 340-4699
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                   Copies to:
                               Ira L. Kotel, Esq.
                     Dickstein Shapiro Morin & Oshinsky LLP
                     1177 Avenue of the Americas, 47th Floor
                          New York, New York 10036-2714
                                 (212) 835-1400

                               -------------------

      Approximate date of commencement of proposed sale to public: From time to
time or at one time after this Registration Statement becomes effective in light
of market conditions and other factors.
      If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. |_|
      If any of the securities being registered on this Form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933 (the "Securities Act"), other than securities offered only in connection
with dividend or interest reinvestment plans, check the following box. |X|
      If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. |_|
      If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. |_|

      If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|

                         ------------------------------

                         CALCULATION OF REGISTRATION FEE



- ----------------------------------------------------------------------------------------------------------------------
                                                              Proposed Maximum        Proposed Maximum     Amount of
        Title of Securities              Amount to be          Offering Price        Aggregate Offering   Registration
          to be Registered              Registered(1)          Per Share(1)(2)            Price(2)         Fee(1)(2)
- ----------------------------------------------------------------------------------------------------------------------
                                                                                               
Common Stock, $.001 par value             6,500,000                 $9.58                $62,270,000       $5,037.64
- ----------------------------------------------------------------------------------------------------------------------


(1) Also registered hereby are such additional and indeterminable number of
shares as may be issuable due to adjustments for changes resulting from stock
dividends, stock splits and similar changes.

(2) Pursuant to paragraphs (c) and (h) of Rule 457 of the Securities Act the
proposed maximum offering price per share of such shares of common stock is
estimated solely for the purpose of determining the registration fee. The actual
offering price per share of the common stock being registered will be determined
from time to time by the registrant in connection with the issuance by the
registrant of the shares registered hereunder. The aggregate amount of the
registrant's common stock registered hereunder that may be sold in an "at the
market" offering for the account of the registrant may not exceed 10% of the
aggregate market value of our common stock held by non-affiliates that which is
permissible under Rule 415(a)(4) promulgated under the Securities Act.

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.



[SIDE LEGEND] The information in this prospectus is not complete and may be
changed. We may not sell these securities until the registration statement filed
with the Securities and Exchange Commission is effective. This prospectus is not
an offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where an offer or sale is not permitted.

                                                           SUBJECT TO COMPLETION
                                  PRELIMINARY PROSPECTUS DATED DECEMBER 19, 2003

                                6,500,000 Shares

                       [LOGO] Discovery Laboratories, Inc.

                                  COMMON STOCK

This prospectus relates to the public offering of up to 6,500,000 shares of our
common stock, par value $.001 per share, which we may sell to underwriters or
dealers, through agents or directly to investors.

Our common stock is quoted on the Nasdaq SmallCap Market under the trading
symbol "DSCO." On December 12, 2003, the closing sales price of our common stock
as reported by Nasdaq was $9.70 per share.

AN INVESTMENT IN OUR COMMON STOCK INVOLVES SIGNIFICANT RISKS. SEE "RISK FACTORS"
BEGINNING ON PAGE 7.

In this prospectus and any prospectus supplement, unless otherwise indicated,
the terms "Discovery", "the Company", "we", "us" and "our" refer and relate to
Discovery Laboratories, Inc., and its consolidated subsidiaries. This prospectus
is part of a registration statement that we filed with the Securities and
Exchange Commission using the "shelf" registration process. Under the shelf
registration process, we may sell any combination of the securities described in
this prospectus in one or more offerings. This prospectus provides you with a
general description of the securities we may offer. Each time we offer to sell
securities pursuant to this registration statement and the prospectus contained
herein, we will provide a prospectus supplement that will contain specific
information about the terms of that offering. The prospectus supplement may also
add, update or change information contained in this prospectus. To the extent
that any statement that we make in a prospectus supplement is inconsistent with
statements made in this prospectus, the statements made in this prospectus will
be deemed modified or superseded by those made in such prospectus supplement.
You should read both this prospectus and any and all prospectus supplements
together with additional information described under the heading, "Where You Can
Find More Information."

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

                The date of this Prospectus is December __, 2003.


                                       i


                                TABLE OF CONTENTS

                                                                            Page

TABLE OF CONTENTS.............................................................ii

ABOUT THIS PROSPECTUS..........................................................1

COMPANY SUMMARY................................................................1

CORPORATE INFORMATION..........................................................7

RISK FACTORS...................................................................7

FORWARD-LOOKING STATEMENTS....................................................21

DESCRIPTION OF COMMON STOCK...................................................22

USE OF PROCEEDS...............................................................24

DILUTION......................................................................24

PLAN OF DISTRIBUTION..........................................................25

INTERESTS OF NAMED EXPERTS AND COUNSEL........................................27

WHERE YOU CAN FIND MORE INFORMATION...........................................27

INFORMATION INCORPORATED BY REFERENCE.........................................28

EXPERTS.......................................................................29

LEGAL MATTERS.................................................................29


                                       ii


                              ABOUT THIS PROSPECTUS

Because this is a summary, it does not contain all the details that may be
important to you. You should read this entire prospectus, including "Risk
Factors," carefully before you invest.

                                 COMPANY SUMMARY

We are a biopharmaceutical company applying our humanized lung surfactant
technology to develop potential novel respiratory therapies and products.
Surfactants are substances that are produced naturally in the lungs and are
essential to the lungs' ability to absorb oxygen and to maintain proper airflow
through the respiratory system. The absence or depletion of surfactants is
involved in a number of respiratory diseases.

Our humanized surfactant technology produces an engineered version of natural
human lung surfactant and contains a peptide, sinapultide, that was designed to
precisely mimic the essential attributes of human lung surfactant protein B
(SP-B). We believe that our proprietary surfactant technology is the only late
stage surfactant technology presently available to potentially treat a broad
range of respiratory diseases including Respiratory Distress Syndrome in adults
and infants, asthma, chronic obstructive pulmonary disease (often referred to as
COPD, which is a chronic condition of the lung that prevents enough oxygen from
reaching the blood), Acute Lung Injury (often referred to as ALI), and upper
airway disorders such as sinusitis (infection of the sinuses) and sleep apnea.

Surfaxin(R), our lead product, is being developed initially for critical care
patients with life-threatening respiratory disorders where there are few, if
any, approved therapies. We recently completed and announced successful top-line
results from two Phase 3 clinical trials of Surfaxin for the treatment of
Respiratory Distress Syndrome in premature infants. We are conducting further
evaluation of secondary endpoints and safety parameters and are preparing to
file a new drug application (NDA) with the United States Food and Drug
Administration and other regulatory authorities throughout the world. Surfaxin
is also currently in a Phase 2 clinical trial for Acute Respiratory Distress
Syndrome in adults and a Phase 3 and Phase 2 clinical trial for Meconium
Aspiration Syndrome in full-term infants.

Aerosolized formulations of our humanized surfactant are presently being
developed to potentially treat hospitalized patients suffering from respiratory
diseases. We recently initiated a Phase 1b clinical trial to evaluate the safety
and tolerability of our humanized lung surfactant delivered as an inhaleable
aerosol for the treatment of asthma. In addition, we believe that scientific
rationale supports the development of aerosolized formulations of our humanized
surfactant to potentially treat Acute Lung Injury, chronic obstructive pulmonary
disorder (COPD), sinusitis sleep apnea and otitis media (inner ear infection).

We are presently developing a dedicated sales and marketing capability through a
collaboration with Quintiles Transnational Corp. to commercialize Surfaxin for
neonatal indications in the United States. We also have entered into a strategic
alliance with Laboratorios del Dr. Esteve to commercialize Surfaxin in Europe
and Latin America. We intend to establish additional strategic alliances, where
appropriate, for the development and commercialization of our products in other
indications and markets.


                                       1


SURFACTANT TECHNOLOGY

Surfactants are protein and lipid (fat) compositions that are produced naturally
in the lungs and are critical to all air-breathing mammals. They cover the
entire alveolar surface, or air sacs, of the lungs and the terminal conducting
airways which lead to the alveoli. Surfactants facilitate respiration by
continually modifying the surface tension of the fluid normally present within
the alveoli that line the inside of the lungs. In the absence of sufficient
surfactant or should the surfactant degrade, these air sacs tend to collapse,
and, as a result, the lungs do not absorb sufficient oxygen. In addition to
lowering aveolar surface-tension, surfactants play other important roles in
human respiration which include lowering the surface tension of the conducting
airways and maintaining airflow and airway patency (keeping the airways open and
expanded). Human surfactants include four known surfactant proteins, A, B, C and
D. It has been established, through numerous studies, that surfactant protein B
(SP-B) is essential for respiratory function.

Presently, the FDA has approved surfactants as replacement therapy only for
Respiratory Distress Syndrome in premature infants, a condition in which infants
are born with an insufficient amount of their own natural surfactant. The most
commonly used of these approved replacement surfactants are derived from pig and
cow lungs. Though they are clinically effective, they have drawbacks and cannot
readily be scaled or developed to treat broader populations for Respiratory
Distress Syndrome in premature infants and other respiratory diseases. There is
presently only one approved synthetic surfactant available, however, this
product does not contain surfactant proteins, is not widely used and is not
actively marketed by its manufacturer.

Our humanized surfactant product candidates, including Surfaxin, are engineered
versions of natural human lung surfactant and contain a humanized peptide,
sinapultide. Sinapultide is a 21 amino acid protein-like substance that is
designed to precisely mimic the essential attributes of human surfactant protein
B (SP-B). We believe that our engineered humanized surfactant can be
manufactured less expensively than the animal-derived surfactants, in sufficient
quantities, in more exact and consistent pharmaceutical grade quality, and has
little or no potential to cause adverse immunological responses in young and
older adults, all important attributes for our products to potentially meet
significant unmet medical needs. Our products also have the ability to be more
precisely formulated, such as in the form of aerosolized liquids or dry powders,
to address various medical indications. In addition, we believe that our
engineered humanized surfactants might possess other pharmaceutical benefits not
currently found with the animal surfactants such as longer shelf-life, reduced
number of administrations to the patient's lungs and elimination of the risk of
animal-borne diseases including the brain-wasting bovine spongiform
encephalopathy (commonly called "mad-cow disease").


                                       2


Respiratory Distress Syndrome in Premature Infants

Respiratory Distress Syndrome is a condition in which premature infants are born
with an insufficient amount of their own natural surfactant. Premature infants
born prior to 32 weeks gestation have not fully developed a natural lung
surfactant and therefore need treatment to sustain life. This condition often
results in the need for mechanical ventilation.

During 2003, we completed a pivotal Phase 3 clinical trial and a supportive
Phase 3 clinical trial of Surfaxin for the treatment of Respiratory Distress
Syndrome in premature infants. We intend to use the results from these trials to
form the basis for an NDA and regulatory applications for approval in the rest
of the world.

Our pivotal, multinational landmark Phase 3 trial achieved positive primary
endpoint results and concluded enrollment in December 2003. The independent Data
Safety Monitoring Board (DSMB) for this trial informed the study's Steering
Committee that Surfaxin had achieved statistical significance in its co-primary
endpoints versus Exosurf(R) (a non-protein containing synthetic surfactant).
Survanta(R), a cow-derived surfactant, served as a reference arm in the trial.

Earlier this year, we concluded our successful supportive, multinational Phase 3
clinical trial comparing Surfaxin to a certain porcine (pig) derived surfactant
for the treatment of Respiratory Distress Syndrome in premature infants.

RDS in premature infants affects over two million infants annually worldwide.
Due to limitations associated with the animal-derived surfactant products that
are currently approved to treat Respiratory Distress Syndrome in premature
infants, therapy is mainly limited to those born in the United States and
Western Europe. There are hundreds of thousands of premature babies born in the
world each year who need, but do not receive, effective surfactant replacement
therapy.

The FDA has granted us Orphan Drug Designation for Surfaxin for Respiratory
Distress Syndrome. Orphan drugs are pharmaceutical products that are intended to
treat diseases affecting fewer than 200,000 patients in the United States. The
Office of Orphan Product Development of the FDA grants certain advantages to the
sponsors of orphan drugs including, but not limited to, seven years of market
exclusivity upon approval of the drug, certain tax incentives for clinical
research and grants to fund testing of the drug. We are also seeking Orphan
Product designation from the European Medicines Evaluation Agency (the European
Union's regulatory approval agency that is similar to the FDA) for Surfaxin for
indications of Respiratory Distress Syndrome in premature infants.

Acute Respiratory Distress Syndrome in Adults

Acute Respiratory Distress Syndrome (often referred to as ARDS) is a
life-threatening disorder for which no approved therapies exist anywhere in the
world. It is characterized by an excess of fluid in the lungs and decreased
oxygen levels in the patient. One prominent characteristic of this disorder is
the destruction of surfactants naturally present in lung tissue. The conditions
are caused by illnesses including pneumonia and septic shock (a toxic condition
caused by infection) and events such as smoke inhalation, near drowning,
industrial accidents and other traumas.


                                       3


We are presently conducting a Phase 2 open-label, controlled, multi-center
clinical trial of Surfaxin for adults with Acute Respiratory Distress Syndrome.
Approximately 110 patients will receive high concentrations of Surfaxin via our
proprietary lavage technique that administers the drug sequentially through a
tube, called a bronchoscope. The procedure is intended to cleanse and remove
inflammatory substances and debris from the lungs, while leaving amounts of
Surfaxin behind to help re-establish the lungs' capacity to absorb oxygen. The
objective is to restore functional surfactant levels and to allow critically ill
patients to be removed from mechanical ventilation.

We have completed Part A of this Phase 2 trial, a dose escalation safety and
tolerability study in 22 patients in four groups (of up to six patients per
group). In consultation with the trial's Independent Safety Review Committee,
comprised of three prominent pulmonologists, we determined that the Part A
portion of the trial procedure is generally safe and tolerable and that it was
appropriate for us to proceed onto the larger safety and efficacy portion of the
trial.

The last part of this Phase 2 trial, Part B, is designed to evaluate safety and
efficacy of Surfaxin in direct comparison to the current standard of care and
will be conducted at approximately 40 centers throughout the United States. The
primary endpoint of Part B is to determine the incidence rate of patients
surviving and off mechanical ventilation at the end of day 28 with one of the
key secondary endpoints being mortality. We have recently entered into a
manufacturing and technology transfer agreement with a new contract manufacturer
for drug product for this trial. See "Risk Factors-If the parties we depend on
for manufacturing our pharmaceutical products do not timely supply these
products, it may delay or impair our ability to develop and market our
products."

The current standard of care for Acute Respiratory Distress Syndrome includes
placing patients on mechanical ventilators in intensive care units at a cost
approximately equal to $8,500 per day, typically for an average of 21 to 28
days. There are estimated to be between 150,000 and 250,000 adults per year in
the United States suffering from Acute Respiratory Distress Syndrome with
similar numbers afflicted in Europe. Because there are no approved treatments
for these diseases, the mortality rate can range from 35% to 50%.

The FDA has granted us Fast-Track Approval Status and Orphan Drug Designation
for Surfaxin for the treatment of Acute Respiratory Distress Syndrome for
adults. The European Medicines Evaluation Agency has granted us Orphan Product
designation for Surfaxin for the treatment of Acute Lung Injury in adults (which
in this circumstance encompasses Acute Respiratory Distress Syndrome). We were
awarded a $1 million Fast-Track Small Business Innovative Research Grant by the
National Institutes of Health to develop Surfaxin for the treatment of Acute
Respiratory Distress Syndrome and Acute Lung Injury in adults.

Meconium Aspiration Syndrome in Full-Term Infants

Meconium Aspiration Syndrome (often referred to as MAS) is a condition in which
full-term infants are born with meconium in their lungs that depletes the
natural surfactant in their lungs. Meconium is a baby's first bowel movement in


                                       4


its mother's womb and, when inhaled, Meconium Aspiration Syndrome can occur.
Meconium Aspiration Syndrome can be life-threatening as a result of the failure
of the lungs to absorb sufficient oxygen. This condition results in the infant's
need for mechanical ventilation.

Surfaxin is being evaluated in a Phase 3 clinical trial for the treatment of
Meconium Aspiration Syndrome in full-term infants. To our knowledge, Surfaxin is
the only product being developed worldwide to treat this syndrome. The trial is
designed for the enrollment of up to 200 infants at medical centers throughout
the United States to compare our proprietary Surfaxin lavage to the current
standard of care. Enrollment has been slower than expected and resources have
been reallocated from the MAS program to the RDS program to facilitate the
completion of the follow-up phase and preparation and filing of the NDA for that
indication.

We also have initiated a Phase 2 clinical trial of our proprietary Surfaxin
lavage in up to 60 full-term infants for use as a prophylactic or in the early
treatment for patients who are at risk for Meconium Aspiration Syndrome but have
not shown symptoms of compromised respiratory function. We believe an effective
and affordable surfactant prophylactic therapy could significantly lower the
risk to meconium-stained infants of chronic respiratory conditions and reduce
the need for costly mechanical ventilation.

There are presently no drug therapies approved for the treatment of Meconium
Aspiration Syndrome in full-term infants. An estimated 60,000 infants are born
in the United States and Europe that require treatment for MAS, however, a
significantly greater number of infants are born worldwide each year at risk for
MAS. The FDA has granted us Fast-Track Approval Status and Orphan Drug
Designation for Surfaxin for the treatment of Meconium Aspiration Syndrome in
full-term infants. We have also received Orphan Product designation of Surfaxin
for the treatment of Meconium Aspiration Syndrome from the European Medicines
Evaluation Agency.

Our Aerosolized Humanized Surfactants for Respiratory Therapy

Many respiratory diseases are associated with an inflammatory event that causes
surfactant dysfunction and a loss of patency of the conducting airways.
Scientific data support the premise that the therapeutic use of surfactants in
aerosol form has the ability to reestablish airway patency, improve pulmonary
mechanics and act as an anti-inflammatory. Surfactant normally prevents moisture
from accumulating in the airways' most narrow sections and thereby maintains the
patency of the conducting airways.

We are currently developing aerosolized formulations of our humanized surfactant
to potentially treat patients who could benefit from surfactant-based therapy to
improve lung function and maintain proper airflow through the respiratory
system. Our aerosol development program is initially focused on surfactant-based
therapy for hospitalized patients suffering from severe acute asthma or Acute
Lung Injury. For asthma, we recently initiated a Phase 1b clinical trial to
evaluate the safety and tolerability of our humanized lung surfactant delivered
as an inhaleable aerosol. In addition, we believe that scientific rationale
supports the development of aerosolized formulations of our humanized surfactant
to potentially treat COPD, sinusitis, sleep apnea and otitis media (inner ear
infection).


                                       5


We are presently working with various aerosol devices towards achieving the
following important development objectives:

- --Full retention of the surface-tension lowering properties of a functioning
  surfactant necessary to restore lung function and maintain patency of the
  conducting airways;
- --Full retention of the surfactant composition of the lungs upon aerosolization;
- --Drug particle size suitable for deposition in the deep-lungs;
- --Delivery rates to achieve therapeutic dosages in a reasonable time period; and
- --Reproducible aerosol output and minimal waste of surfactant dose.

Asthma

We recently initiated a Phase 1b clinical trial to evaluate the safety and
tolerability of our humanized lung surfactant, delivered as an inhaled aerosol
to treat individuals who suffer from asthma. This single-blind,
placebo-controlled, randomized, dose-escalation study, is being conducted at a
pulmonary research facility and is designed to enroll 6 healthy subjects and up
to 12 mild-persistent asthmatic patients. The primary study objective is to
assess preliminary safety and tolerability as well as to establish the
deposition characteristics of this aerosolized formulation of our surfactant
technology.

Asthma is a common disease characterized by sudden constriction and inflammation
of the lungs. Constriction of the upper airway system is caused by a tightening
of airway muscles, while inflammation is a swelling of the airways usually due
to an allergic reaction due to an airborne irritant. Both of these events cause
airways to narrow and may result in wheezing, shortness of breath and chest
tightness. Several studies have shown that surfactant damage and dysfunction is
a significant component of asthma -- airway obstruction occurs when there is a
surfactant dysfunction in the airways of the deep lung of the type that develops
during an asthma attack. We believe that surfactant replacement therapy has the
potential to relieve the obstruction in the airways associated with asthma.

According to information provided by the American Lung Association, asthma
afflicts approximately 20.3 million people in the United States and its
incidence rate is rising. Asthma is a chronic disease; prevalent in people of
all ages and an estimated 12 million people have experienced an asthma attack
within the past year. In the United States alone, there are roughly 1 million
hospital outpatient visits, approximately 1.8 million emergency room visits and
9.3 million physician visits each year due to asthma. Asthma ranks within the
top 10 prevalent activity-limiting health conditions costing $14 billion in
United States healthcare costs annually.

Asthma may require life-long therapy to prevent or treat episodes. Ten percent
of patients are considered severe asthmatics and require moderate to high doses
of drugs. Currently available medications to treat and control asthma include
inhaled and oral steroids and bronchodilators. Bronchodilators cannot be used to
control severe episodes or chronic, severe asthma. Steroidal medications are
used to address these conditions, however, steroids can cause serious side
effects when used for prolonged periods. As a result, steroid use is typically
limited to severe asthmatic episodes and chronic, severe asthma.


                                       6


Several small scientific studies report that patients suffering from a severe,
acute asthma attack were relieved when they inhaled aerosolized surfactant. We
believe that supplying surfactant as an aerosol spray may be a simple and gentle
way of relieving airway obstruction thereby augmenting currently available
conventional asthma therapies and leading to a more rapid improvement in
asthmatic symptoms.

Acute Lung Injury

Acute Lung Injury is associated with conditions that either directly or
indirectly injure the air sacs of the lung, the alveoli. Acute Lung Injury is a
syndrome of inflammation and increased permeability of the lungs with an
associated breakdown of the lungs' surfactant layer. The most serious
manifestation of Acute Lung Injury is Acute Respiratory Distress Syndrome.

Among the causes of Acute Lung Injury are complications typically associated
with certain major surgeries, mechanical ventilator induced lung injury (often
referred to as VILI), smoke inhalation, pneumonia and sepsis. There are an
estimated 1 million patients at risk in the United States for Acute Lung Injury
annually and there are no currently-approved therapies.

We believe that our proprietary humanized aerosol surfactant may be effective as
a preventive measure for patients at risk for Acute Lung Injury. This
prophylactic approach may result in fewer patients requiring costly intensive
care therapy and shorter periods of therapy - thus offering cost savings in the
hospital setting.

                              CORPORATE INFORMATION

Surfaxin(R) is our trademark. This prospectus also includes product names,
trademarks and trade names of other companies, which names are the exclusive
property of the holders thereof.

Our executive offices are located at 350 South Main Street, Suite 307,
Doylestown, Pennsylvania 18901. Our telephone number is (215) 340-4699 and our
facsimile number is (215) 340-3940.

                                  Risk Factors

An investment in our common stock involves significant risks. You should
carefully consider the risks described below and other information, including
our financial statements and related notes previously included in our periodic
reports filed with the SEC. If any of the factors or conditions summarized in
the following risks actually occur, our business prospects, financial condition
and results of operations could be materially harmed, the trading price of our
common stock could decline and you could lose all or part of your investment.
The risks and uncertainties described below are those that we currently believe
may materially affect us. Additional risks and uncertainties of which we are
unaware or which we currently deem immaterial also may become important factors
that affect us.


                                       7


Because we are a development stage company, we may not successfully develop and
market our products, and even if we do, we may not generate enough revenue or
become profitable.

We are a developmental stage biopharmaceutical company. Therefore, you must
evaluate us in light of the uncertainties and complexities present in such
companies. We currently have no products approved for marketing and sale and are
conducting research and development on our product candidates. As a result, we
have not begun to market or generate revenues from the commercialization of any
of these products. Our long-term viability will be impaired if we are unable to
obtain regulatory approval for, or successfully market, our product candidates.

To date, we have only generated revenues from investments, research grants and
collaborative research and development agreements. We will need to engage in
significant, time-consuming and costly research, development, pre-clinical
studies, clinical testing and regulatory approval for our products under
development prior to their commercialization. In addition, pre-clinical or
clinical studies may show that our products are not effective or safe for one or
more of their intended uses. We may fail in the development and
commercialization of our products. As of September 30, 2003, we have incurred a
deficit accumulated during the development stage of approximately $88.2 million,
and we expect to continue to incur significant increasing operating losses over
the next several years. If we succeed in the development of our products, we
still may not generate sufficient or sustainable revenues or we may not be
profitable.

Our technology platform is based solely on our proprietary humanized, engineered
surfactant technology and only our lead product candidate, Surfaxin, has been
subject to clinical studies. Our ongoing clinical trials for Surfaxin and other
product candidates based upon our Surfactant Replacement Technologies may be
delayed, or fail, which will harm our business.

Our humanized, engineered surfactant platform technology is based on the
scientific rationale for surfactant replacement therapy to treat life
threatening respiratory disorders and as the foundation for the development of
novel respiratory therapies and products. Our business is dependent upon the
successful development and approval of our product candidates based on this
platform technology. Recently we completed and announced top-line results from a
pivotal Phase 3 clinical trial and supportive Phase 3 clinical trial with our
lead product, Surfaxin, for the treatment of Respiratory Distress Syndrome in
premature infants. In addition, we are conducting a Phase 2 clinical trial for
Acute Respiratory Distress syndrome in adults and a Phase 3 and Phase 2 clinical
trial for Meconium Aspiration Syndrome in full-term infants. We recently
initiated a Phase 1b clinical trial to evaluate the safety and tolerability of
our humanized lung surfactant, delivered as an inhaled aerosol to treat
individuals who suffer from asthma.

Companies in the pharmaceutical and biotechnology industries have suffered
significant setbacks in advanced clinical trials, even after obtaining promising
results in earlier trials. Data obtained from tests are susceptible to varying
interpretations which may delay, limit or prevent regulatory approval. In
addition, we may be unable to enroll patients quickly enough to meet our
expectations for completing any or all of these trials. The timing and


                                       8


completion of current and planned clinical trials of our product candidates
depend on, among other factors, the rate at which patients are enrolled, which
is a function of many factors, including:

- --the number of clinical sites;
- --the size of the patient population;
- --the proximity of patients to the clinical sites;
- --the eligibility criteria for the study;
- --the existence of competing clinical trials; and
- --the existence of alternative available products.

Delays in patient enrollment in clinical trials may occur, which would likely
result in increased costs, program delays or both.

We will need additional capital, and our ability to continue all of our existing
planned research and development activities is uncertain. Any additional
financing could result in equity dilution.

We will need substantial additional funding to conduct our presently planned
research and product development activities. Based on our current operating
plan, we believe that our currently available financial resources will be
adequate to satisfy our capital needs into 2005. Our future capital requirements
will depend on a number of factors that are uncertain, including the results of
our research and development activities, clinical studies and trials,
competitive and technological advances and the regulatory process, among others.
We will likely need to raise substantial additional funds through collaborative
ventures with potential corporate partners and through additional debt or equity
financings. We may also continue to seek additional funding through capital
lease transactions. We may in some cases elect to develop products on our own
instead of entering into collaboration arrangements. This would increase our
cash requirements for research and development.

We have not entered into arrangements to obtain any additional financing, except
for the credit facility with PharmaBio Development Inc., a subsidiary of
Quintiles, and our capital equipment lease financing arrangement with General
Electric Capital Corporation. Any additional financing could include
unattractive terms or result in significant dilution of stockholders' interests
and share prices may decline. If we fail to enter into collaborative ventures or
to receive additional funding, we may have to delay, scale back or discontinue
certain of our research and development operations, and consider licensing the
development and commercialization of products that we consider valuable and
which we otherwise would have developed ourselves. If we are unable to raise
required capital, we may be forced to limit many, if not all, of our research
and development programs and related operations, curtail commercialization of
our product candidates and, ultimately, cease operations.

Furthermore, we could cease to qualify for listing of our securities on the
NASDAQ SmallCap Market if the market price of our common stock declines as a
result of the dilutive aspects of such potential financings. See "Risk
Factors-The market price of our stock may be adversely affected by market
volatility."


                                       9


The clinical trial and regulatory approval process for our products is expensive
and time consuming, and the outcome is uncertain.

In order to sell our products that are under development, we must receive
regulatory approvals for each product. The FDA and comparable agencies in
foreign countries extensively and rigorously regulate the testing, manufacture,
distribution, advertising, pricing and marketing of drug products like our
products. This approval process includes preclinical studies and clinical trials
of each pharmaceutical compound to establish its safety and effectiveness and
confirmation by the FDA and comparable agencies in foreign countries that the
manufacturer maintains good laboratory and manufacturing practices during
testing and manufacturing. Although we are involved in certain late-stage
clinical trials, pharmaceutical and biotechnology companies have suffered
significant setbacks in advanced clinical trials, even after promising results
in earlier clinical trials or in preliminary findings for such clinical trials.
Further, even if favorable testing data is generated by clinical trials of drug
products, the FDA may not approve an NDA filed by a pharmaceutical or
biotechnology company for such drug product.

The approval process is lengthy, expensive and uncertain. It is also possible
that the FDA or comparable foreign regulatory authorities could interrupt, delay
or halt any one or more of our clinical trials. If we, or any regulatory
authorities, believe that trial participants face unacceptable health risks, any
one or more of our trials could be suspended or terminated. We also may not
reach agreement with the FDA and/or comparable foreign agencies on the design of
any one or more of the clinical studies necessary for approval. Conditions
imposed by the FDA and comparable agencies in foreign countries on our clinical
trials could significantly increase the time required for completion of such
clinical trials and the costs of conducting the clinical trials. Data obtained
from clinical trials are susceptible to varying interpretations which may delay,
limit or prevent regulatory approval.

Delays and terminations of the clinical trials we conduct could result from
insufficient patient enrollment. Patient enrollment is a function of several
factors, including the size of the patient population, stringent enrollment
criteria, the proximity of the patients to the trial sites, having to compete
with other clinical trials for eligible patients, geographical and geopolitical
considerations and others. Delays in patient enrollment can result in greater
costs and longer trial timeframes. Patients may also suffer adverse medical
events or side effects that are common to this class of drug such as a decrease
in the oxygen level of the blood upon administration.

Clinical trials generally take two to five years or more to complete, and,
accordingly, our first product is not expected to be commercially available in
the United States until at least 2005, and our other product candidates will
take longer. The FDA has notified us that two of our intended indications for
our humanized surfactant-based therapy, Meconium Aspiration Syndrome in
full-term infants and Acute Respiratory Distress Syndrome in adults, have been
granted designation as "fast-track" products under provisions of the Food and
Drug Administration Modernization Act of 1997. The FDA has also granted us
Orphan Drug Designation for three of our intended indications for Surfaxin,
Acute Respiratory Distress Syndrome in adults and Respiratory Distress Syndrome
in infants, and Meconium Aspiration Syndrome in full-term infants.. To support
our development of Surfaxin for the treatment of Meconium Aspiration Syndrome,


                                       10


the FDA has awarded us an Orphan Products Development Grant. Fast-Track Status
does not accelerate the clinical trials nor does it mean that the regulatory
requirements are less stringent. The Fast-Track Status provisions are designed
to expedite the FDA's review of new drugs intended to treat serious or
life-threatening conditions. The FDA generally will review the New Drug
Application for a drug granted Fast-Track Status within six months instead of
the typical one to three years. Our products may not, however, continue to
qualify for expedited review and our other drug candidates may fail to qualify
for fast track development or expedited review. Even though some of our drug
candidates have qualified for expedited review, the FDA may not approve them at
all or any sooner than other drug candidates that do not qualify for expedited
review.

The FDA and comparable foreign agencies could withdraw any approvals we obtain.
Further, if there is a later discovery of unknown problems or if we fail to
comply with other applicable regulatory requirements at any stage in the
regulatory process, the FDA may restrict or delay our marketing of a product or
force us to make product recalls. In addition, the FDA could impose other
sanctions such as fines, injunctions, civil penalties or criminal prosecutions.
To market our products outside the United States, we also need to comply with
foreign regulatory requirements governing human clinical trials and marketing
approval for pharmaceutical products. The FDA and foreign regulators have not
yet approved any of our products under development for marketing in the United
States or elsewhere. If the FDA and other regulators do not approve our
products, we will not be able to market our products.

In order to conduct our clinical trials we need adequate supplies of our drug
substance and drug product and competitor's drug product, which may not be
readily available.

To succeed, clinical trials require adequate supplies of drug substance and drug
product, which may be difficult or uneconomical to procure or manufacture. We
rely on third party contract manufacturers for our drug substance and other
active ingredients for Surfaxin and to produce material that meets appropriate
standards for use in clinical trials of our products. We recently transferred
our manufacturing capabilities from our single validated clinical manufacturing
facility, owned and operated by Akorn, Inc., to a new contract manufacturer,
Laureate Pharma, with the objective of producing appropriate clinical grade
material of our drug substance that meet the standards for use in our ongoing
clinical studies. Laureate Pharma may not be able to produce Surfaxin to
appropriate standards for use in clinical studies. A failure by Laureate to do
so may delay or impair our ability to obtain regulatory approval for Surfaxin.
See also "Risk Factors - If the parties we depend on for manufacturing our
pharmaceutical products do not timely supply these products, it may delay or
impair our ability to develop and market our products."

If the parties we depend on for manufacturing our pharmaceutical products do not
timely supply these products, it may delay or impair our ability to develop and
market our products.

We rely on outside manufacturers for our drug substance and other active
ingredients for Surfaxin and to produce material that meets appropriate
standards for use in clinical studies of our products. Presently, we have no
validated clinical manufacturing facility to produce appropriate clinical grade
material of our drug substance for use in our ongoing clinical studies.


                                       11


Laureate Pharma or other outside manufacturers may not be able to (i) produce
our drug substance to appropriate standards for use in clinical studies, (ii)
perform under the definitive manufacturing agreement once such agreements are
executed, if at all, or (iii) remain in the contract manufacturing business for
a sufficient time to successfully produce and market our product candidates. If
we do not maintain important manufacturing relationships, we may fail to find a
replacement manufacturer or to develop our own manufacturing capabilities. If we
cannot do so, it could delay or impair our ability to obtain regulatory approval
for our products and substantially increase our costs or deplete any profit
margins. If we do find replacement manufacturers, we may not be able to enter
into agreements with them on terms and conditions favorable to us and, there
could be a substantial delay before a new facility could be qualified and
registered with the FDA and foreign regulatory authorities.

We may in the future elect to manufacture some of our products on our own.
Although we own certain specialized manufacturing equipment, are considering an
investment in additional manufacturing equipment and employ certain
manufacturing managerial personnel, we do not presently maintain a complete
manufacturing facility or manufacturing department and we do not anticipate
manufacturing on our own any of our products during the next 12 months. If we
decide to manufacture products on our own and do not successfully develop
manufacturing capabilities, it will adversely affect sales of our products.

The FDA and foreign regulatory authorities require manufacturers to register
manufacturing facilities. The FDA and corresponding foreign regulators also
inspect these facilities to confirm compliance with good manufacturing practices
(GMPs) or similar requirements that the FDA or corresponding foreign regulators
establish. Manufacturing or quality control problems could occur at the contract
manufacturers causing product production and shipment delays or a situation
where the contractor may not be able to maintain compliance with the FDA's
current GMP requirements necessary to continue manufacturing our drug substance.
If our third-party foreign or domestic suppliers or manufacturers of our
products, or, if we decide to manufacture our products on our own, we, fail to
comply with GMP requirements or other FDA and comparable foreign regulatory
requirements, it could adversely affect our clinical research activities and our
ability to market and develop our products.

Our strategy, in many cases, is to enter into collaboration agreements with
third parties with respect to our products and we may require additional
collaboration agreements. If we fail to enter into these agreements or if we or
the third parties do not perform under such agreements, it could impair our
ability to commercialize our products.

Our strategy for the completion of the required development and clinical testing
of our products and for the manufacturing, marketing and commercialization of
our products, in many cases, depends upon entering into collaboration
arrangements with pharmaceutical companies to market, commercialize and
distribute our products. We have a collaboration arrangement with Esteve for
Surfaxin covering all of Europe and Latin America. Esteve will be responsible
for the marketing of Surfaxin for the treatment of Respiratory Distress Syndrome
in premature infants, Meconium Aspiration Syndrome in full-term infants, and
Acute Lung Injury/Acute Respiratory Distress Syndrome in adults. Esteve will
also be responsible for the sponsorship of certain clinical trial costs related
to obtaining European Medicines Evaluation Agency approval for commercialization


                                       12


of Surfaxin in Europe for the Acute Lung Injury/Acute Respiratory Distress
Syndrome indications. We will be responsible for the remainder of the regulatory
activities relating to Surfaxin, including with respect to European Medicines
Evaluation Agency filings.

We have entered into an exclusive collaboration arrangement in the United States
with Quintiles, and its affiliate, PharmaBio, to commercialize, sell and market
Surfaxin in the United States for indications of Respiratory Distress Syndrome
and Meconium Aspiration Syndrome. As part of our collaboration with Quintiles,
Quintiles will build a sales force solely dedicated to the sale of Surfaxin upon
the approval of a New Drug Application for either of the two indications. If
Quintiles and we fail to devote appropriate resources to commercialize, sell and
market Surfaxin, sales of Surfaxin could be reduced. As part of the
collaboration, PharmaBio is obligated to provide us with certain financial
assistance in connection with the commercialization of Surfaxin, including, but
not limited to, a secured, revolving credit facility for at least $8.5 million
which may be increased to $10 million. A failure by us to repay amounts
outstanding under the credit facility would have a material adverse effect on
us. To obtain the benefits of such financing, we are obligated to meet certain
development and performance milestones. The failure by us to meet the milestones
or other terms and conditions of the financing leading to PharmaBio's
termination thereof or the failure by PharmaBio to fulfill its obligation to
partially fund the commercialization of Surfaxin, may affect our ability to
successfully market Surfaxin.

If Esteve, Quintiles, PharmaBio or we breach or terminate the agreements that
make up such collaboration arrangements or Esteve, Quintiles or PharmaBio
otherwise fail to conduct their Surfaxin-related activities in a timely manner
or if there is a dispute about their respective obligations, we may need to seek
other partners or we may have to develop our own internal sales and marketing
capability for the indications of Surfaxin which Esteve, Quintiles and/or
PharmaBio have agreed to assist in commercializing. Accordingly, we may need to
enter into additional collaboration agreements and our success, particularly
outside of the United States, may depend upon obtaining additional collaboration
partners. In addition, we may depend on our partners' expertise and dedication
of sufficient resources to develop and commercialize our proposed products. We
may, in the future, grant to collaboration partners rights to license and
commercialize pharmaceutical products developed under collaboration agreements.
Under these arrangements, our collaboration partners may control key decisions
relating to the development of the products. The rights of our collaboration
partners would limit our flexibility in considering alternatives for the
commercialization of our products. If we fail to successfully develop these
relationships or if our collaboration partners fail to successfully develop or
commercialize any of our products, it may delay or prevent us from developing or
commercializing our products in a competitive and timely manner and would have a
material adverse effect on the commercialization of Surfaxin. See "Risk
Factors-Our lack of marketing and sales experience could limit our ability to
generate revenues from future product sales."

If we cannot protect our intellectual property, other companies could use our
technology in competitive products. If we infringe the intellectual property
rights of others, other companies could prevent us from developing or marketing
our products.

We seek patent protection for our drug candidates so as to prevent others from
commercializing equivalent products in substantially less time and at
substantially lower expense. The pharmaceutical industry places considerable


                                       13


importance on obtaining patent and trade secret protection for new technologies,
products and processes. Our success will depend in part on our ability and that
of parties from whom we license technology to:

- -defend our patents and otherwise prevent others from infringing on our
 proprietary rights;
- -protect trade secrets; and
- -operate without infringing upon the proprietary rights of others, both in the
 United States and in other countries.

The patent position of firms relying upon biotechnology is highly uncertain and
involves complex legal and factual questions for which important legal
principles are unresolved. To date, the United States Patent and Trademark
Office has not adopted a consistent policy regarding the breadth of claims that
the United States Patent and Trademark Office allows in biotechnology patents or
the degree of protection that these types of patents afford. As a result, there
are risks that we may not develop or obtain rights to products or processes that
are or may seem to be patentable.

Even if we obtain patents to protect our products, those patents may not be
sufficiently broad and others could compete with us.

We, and the parties licensing technologies to us, have filed various United
States and foreign patent applications with respect to the products and
technologies under our development, and the United States Patent and Trademark
Office and foreign patent offices have issued patents with respect to our
products and technologies. These patent applications include international
applications filed under the Patent Cooperation Treaty. Our pending patent
applications, those we may file in the future or those we may license from third
parties may not result in the United States Patent and Trademark Office or
foreign patent office issuing patents. Also, if patent rights covering our
products are not sufficiently broad, they may not provide us with sufficient
proprietary protection or competitive advantages against competitors with
similar products and technologies. Furthermore, if the United States Patent and
Trademark Office or foreign patent offices issue patents to us or our licensors,
others may challenge the patents or circumvent the patents, or the patent office
or the courts may invalidate the patents. Thus, any patents we own or license
from or to third parties may not provide any protection against competitors.

Furthermore, the life of our patents is limited. We have licensed a series of
patents from Johnson & Johnson, Inc., and Ortho Pharmaceutical Corporation which
are important, either individually or collectively, to our strategy of
commercializing our surfactant technology. Such patents, which include relevant
European patents, expire on various dates beginning in 2009 and ending in 2020
or, in some cases, possibly later. We have filed, and when possible and
appropriate, will file, other patent applications with respect to our products
and processes in the United States and in foreign countries. We may not be able
to develop additional products or processes that will be patentable or
additional patents may not be issued to us. See also "Risk Factors-If we cannot
meet requirements under our license agreements, we could lose the rights to our
products."


                                       14


Intellectual property rights of third parties could limit our ability to market
our products.

Our commercial success also significantly depends on our ability to operate
without infringing the patents or violating the proprietary rights of others.
The United States Patent and Trademark Office keeps United States patent
applications confidential while the applications are pending. As a result, we
cannot determine which inventions third parties claim in pending patent
applications that they have filed. We may need to engage in litigation to defend
or enforce our patent and license rights or to determine the scope and validity
of the proprietary rights of others. It will be expensive and time consuming to
defend and enforce patent claims. Thus, even in those instances in which the
outcome is favorable to us, the proceedings can result in the diversion of
substantial resources from our other activities. An adverse determination may
subject us to significant liabilities or require us to seek licenses that third
parties may not grant to us or may only grant at rates that diminish or deplete
the profitability of the products to us. An adverse determination could also
require us to alter our products or processes or cease altogether any related
research and development activities or product sales.

If we cannot meet requirements under our license agreements, we could lose the
rights to our products.

We depend on licensing arrangements with third parties to maintain the
intellectual property rights to our products under development. Presently, we
have licensed rights from Johnson & Johnson and Ortho Pharmaceutical. These
agreements require us to make payments and satisfy performance obligations in
order to maintain our rights under these licensing arrangements. All of these
agreements last either throughout the life of the patents, or with respect to
other licensed technology, for a number of years after the first commercial sale
of the relevant product.

In addition, we are responsible for the cost of filing and prosecuting certain
patent applications and maintaining certain issued patents licensed to us. If we
do not meet our obligations under our license agreements in a timely manner, we
could lose the rights to our proprietary technology.

In addition, we may be required to obtain licenses to patents or other
proprietary rights of third parties in connection with the development and use
of our products and technologies. Licenses required under any such patents or
proprietary rights might not be made available on terms acceptable to us, if at
all.

We rely on confidentiality agreements that could be breached and may be
difficult to enforce.

Although we believe that we take reasonable steps to protect our intellectual
property, including the use of agreements relating to the non-disclosure of
confidential information to third parties, as well as agreements that purport to
require the disclosure and assignment to us of the rights to the ideas,
developments, discoveries and inventions of our employees and consultants while
we employ them, the agreements can be difficult and costly to enforce. Although
we seek to obtain these types of agreements from our consultants, advisors and
research collaborators, to the extent that they apply or independently develop
intellectual property in connection with any of our projects, disputes may arise


                                       15


as to the proprietary rights to this type of information. If a dispute arises, a
court may determine that the right belongs to a third party, and enforcement of
our rights can be costly and unpredictable. In addition, we will rely on trade
secrets and proprietary know-how that we will seek to protect in part by
confidentiality agreements with our employees, consultants, advisors or others.
Despite the protective measures we employ, we still face the risk that:

- --they will breach these agreements;
- --any agreements we obtain will not provide adequate remedies for this type of
  breach or that our trade secrets or proprietary know-how will otherwise become
  known or competitors will independently develop similar technology; and
- --our competitors will independently discover our proprietary information and
  trade secrets.

Our lack of marketing and sales experience could limit our ability to generate
revenues from future product sales.

We do not have marketing, sales or distribution experience or marketing or sales
personnel. As a result, we will depend on our collaboration with Quintiles for
the marketing and sales of Surfaxin for indications of Respiratory Distress
Syndrome in premature infants and Meconium Aspiration Syndrome in full-term
infants in the United States and with Esteve for the marketing and sales of
Surfaxin for the treatment of Respiratory Distress Syndrome, Meconium Aspiration
Syndrome and Acute Lung Injury/Acute Respiratory Distress Syndrome in adult
patients in all of Europe and Latin America. See "Risk Factors-Our strategy, in
many cases, is to enter into collaboration agreements with third parties with
respect to our products and we may require additional collaboration agreements.
If we fail to enter into these agreements or if we or the third parties do not
perform under such agreements, it could impair our ability to commercialize our
products." If we do not develop a marketing and sales force of our own, then we
will depend on arrangements with corporate partners or other entities for the
marketing and sale of our remaining products.

The sales and marketing of Surfaxin for indications of Respiratory Distress
Syndrome in premature infants, Meconium Aspiration Syndrome in full-term
infants, and Acute Lung Injury/Acute Respiratory Distress Syndrome in adult
patients in the relevant territories depends, in part, on Quintiles' and
Esteve's performance of their contractual obligations. The failure of either
party to do so would have a material adverse effect on the sales and marketing
of Surfaxin. We may not succeed in entering into any satisfactory third party
arrangements for the marketing and sale of our remaining products. In addition,
we may not succeed in developing marketing and sales capabilities, our
commercial launch of certain products may be delayed until we establish
marketing and sales capabilities or we may not have sufficient resources to do
so. If we fail to establish marketing and sales capabilities or fail to enter
into arrangements with third parties, either in a timely manner, it will
adversely affect sales of our products.


                                       16


We depend upon key employees and consultants in a competitive market for skilled
personnel. If we are unable to attract and retain key personnel, it could
adversely affect our ability to develop and market our products.

We are highly dependent upon the principal members of our management team,
especially our Chief Executive Officer, Dr. Capetola, and our directors, as well
as our scientific advisory board members, consultants and collaborating
scientists. Many of these people have been involved in our formation or have
otherwise been involved with us for many years, have played integral roles in
our progress and we believe that they will continue to provide value to us. A
loss of any of these personnel may have a material adverse effect on aspects of
our business and clinical development and regulatory programs. We have an
employment agreement with Dr. Capetola that expires on December 31, 2005. We
also have employment agreements with other key personnel with termination dates
from 2003 through 2005. Although these employment agreements generally provide
for severance payments that are contingent upon the applicable employee's
refraining from competition with us, the loss of any of these persons' services
would adversely affect our ability to develop and market our products and obtain
necessary regulatory approvals, and the applicable noncompete provisions can be
difficult and costly to monitor and enforce. Further, we do not maintain key-man
life insurance.

Our future success also will depend in part on the continued service of our key
scientific and management personnel and our ability to identify, hire and retain
additional personnel, including marketing and sales staff. We experience intense
competition for qualified personnel, and the existence of non-competition
agreements between prospective employees and their former employers may prevent
us from hiring those individuals or subject us to suit from their former
employers.

While we attempt to provide competitive compensation packages to attract and
retain key personnel, some of our competitors are likely to have greater
resources and more experience than we have, making it difficult for us to
compete successfully for key personnel.

Our industry is highly competitive and we have less capital and resources than
many of our competitors, which may give them an advantage in developing and
marketing products similar to ours or make our products obsolete.

Our industry is highly competitive and subject to rapid technological innovation
and evolving industry standards. We compete with numerous existing companies
intensely in many ways. We intend to market our products under development for
the treatment of diseases for which other technologies and treatments are
rapidly developing and, consequently, we expect new companies to enter our
industry and that competition in the industry will increase. Many of these
companies have substantially greater research and development, manufacturing,
marketing, financial, technological, personnel and managerial resources than we
have. In addition, many of these competitors, either alone or with their
collaborative partners, have significantly greater experience than we do in:

- --developing products;
- --undertaking preclinical testing and human clinical trials;


                                       17


- --obtaining FDA and other regulatory approvals or products; and
- --manufacturing and marketing products.

Accordingly, our competitors may succeed in obtaining patent protection,
receiving FDA or comparable foreign approval or commercializing products before
us. If we commence commercial product sales, we will compete against companies
with greater marketing and manufacturing capabilities who may successfully
develop and commercialize products that are more effective or less expensive
than ours. These are areas in which, as yet, we have limited or no experience.
In addition, developments by our competitors may render our product candidates
obsolete or noncompetitive.

Presently, there are no approved drugs that are specifically indicated for
Meconium Aspiration Syndrome in full-term infants or Acute Lung Injury/Acute
Respiratory Distress Syndrome in adults. Current therapy consists of general
supportive care and mechanical ventilation.

Four products, three that are animal-derived and one that is a synthetic, are
specifically approved for the treatment of Respiratory Distress Syndrome in
premature infants. Exosurf(R) is synthetic and is marketed by GlaxoSmithKline,
plc, outside the United States and contains only phospholipids (the fats
normally present in the lungs) and synthetic organic detergents and no
stabilizing protein or peptides. Curosurf(R) is a porcine lung extract that is
marketed in Europe by Chiesi Farmaceutici S.p.A., and in the United States by
Dey Laboratories, Inc. Survanta(R), marketed by the Ross division of Abbott
Laboratories, Inc., is an extract of bovine lung that contains the cow version
of surfactant protein C. Forest Laboratories, Inc., markets its calf lung
surfactant, Infasurf(R) in the United States for the treatment of Respiratory
Distress Syndrome in premature infants. Although none of the four approved
surfactants for Respiratory Distress Syndrome in premature infants is approved
for Acute Lung Injury or Acute Respiratory Distress Syndrome in adults, which
are significantly larger markets, there are a significant number of other
potential therapies in development for the treatment of Acute Lung Injury/Acute
Respiratory Distress Syndrome that are not surfactant-related. Any of these
various drugs or devices could significantly impact the commercial opportunity
for Surfaxin. We believe that engineered humanized surfactants such as Surfaxin
will be far less expensive to produce than the animal-derived products approved
for the treatment of Respiratory Distress Syndrome in premature infants and will
have no capability of transmitting the brain-wasting bovine spongiform
encephalopathy (commonly called "mad-cow disease") or causing adverse
immunological responses in young and older adults.

We also face, and will continue to face, competition from colleges,
universities, governmental agencies and other public and private research
organizations. These competitors are becoming more active in seeking patent
protection and licensing arrangements to collect royalties for use of technology
that they have developed. Some of these technologies may compete directly with
the technologies that we are developing. These institutions will also compete
with us in recruiting highly qualified scientific personnel. We expect that
therapeutic developments in the areas in which we are active may occur at a
rapid rate and that competition will intensify as advances in this field are
made. As a result, we need to continue to devote substantial resources and
efforts to research and development activities.


                                       18


If product liability claims are brought against us, it may result in reduced
demand for our products or damages that exceed our insurance coverage.

The clinical testing of, marketing and use of our products exposes us to product
liability claims in the event that the use or misuse of those products causes
injury, disease or results in adverse effects. Use of our products in clinical
trials, as well as commercial sale, could result in product liability claims. In
addition, sales of our products through third party arrangements could also
subject us to product liability claims. We presently carry product liability
insurance with coverages of up to $10,000,000 per occurrence and $10,000,000 in
the aggregate, an amount we consider reasonable and customary relating to our
clinical trials of Surfaxin. However, this insurance coverage includes various
deductibles, limitations and exclusions from coverage, and in any event might
not fully cover any potential claims. We may need to obtain additional product
liability insurance coverage prior to initiating other clinical trials. We
expect to obtain product liability insurance coverage before commercialization
of our proposed products; however, the insurance is expensive and insurance
companies may not issue this type of insurance when we need it. We may not be
able to obtain adequate insurance in the future at an acceptable cost. Any
product liability claim, even one that was not in excess of our insurance
coverage or one that is meritless and/or unsuccessful, could adversely affect
our cash available for other purposes, such as research and development. In
addition, the existence of a product liability claim could affect the market
price of our common stock.

We expect to face uncertainty over reimbursement and healthcare reform.

In both the United States and other countries, sales of our products will depend
in part upon the availability of reimbursement from third party payors, which
include government health administration authorities, managed care providers and
private health insurers. Third party payors are increasingly challenging the
price and examining the cost effectiveness of medical products and services.

Directors, executive officers, principal stockholders and affiliated entities
own a significant percentage of our capital stock, and they may make decisions
that you do not consider to be in your best interest.

As of September 30, 2003, our directors, executive officers, principal
stockholders and affiliated entities beneficially owned, in the aggregate,
approximately 15% of our outstanding voting securities. As a result, if some or
all of them acted together, they would have the ability to exert substantial
influence over the election of our Board of Directors and the outcome of issues
requiring approval by our stockholders. This concentration of ownership may have
the effect of delaying or preventing a change in control of our Company that may
be favored by other stockholders. This could prevent transactions in which
stockholders might otherwise recover a premium for their shares over current
market prices.

The market price of our stock may be adversely affected by market volatility.

The market price of our common stock, like that of many other development stage
pharmaceutical or biotechnology companies, has been and is likely to be


                                       19


volatile. In addition to general economic, political and market conditions, the
price and trading volume of our stock could fluctuate widely in response to many
factors, including:

- --announcements of the results of clinical trials by us or our competitors;
- --adverse reactions to products;
- --governmental approvals, delays in expected governmental approvals or
  withdrawals of any prior governmental approvals or public or regulatory agency
  concerns regarding the safety or effectiveness of our products;
- --changes in the United States or foreign regulatory policy during the period of
  product development;
- --developments in patent or other proprietary rights, including any third party
  challenges of our intellectual property rights;
- --announcements of technological innovations by us or our competitors;
- --announcements of new products or new contracts by us or our competitors;
- --actual or anticipated variations in our operating results due to the level of
  development expenses and other factors;
- --changes in financial estimates by securities analysts and whether our earnings
  meet or exceed the estimates;
- --conditions and trends in the pharmaceutical and other industries;
- --new accounting standards; and
- --the occurrence of any of the risks described in this "Management's Discussion
  and Analysis-Risk Factors."

Our common stock is listed for quotation on the NASDAQ SmallCap Market. Year to
date through December 12, 2003, the price of our common stock has ranged from
$1.32 to $10.27. We expect the price of our common stock to remain volatile. The
average daily trading volume in our common stock varies significantly. Year to
date through December 12, 2003, the average daily trading volume in our common
stock was approximately 395,000 shares and the average number of transactions
per day was approximately 697. Our relatively low average volume and low average
number of transactions per day may affect the ability of our stockholders to
sell their shares in the public market at prevailing prices and a more active
market may never develop.

In addition, we may not be able to continue to adhere to the strict listing
criteria of the SmallCap Market. If the common stock were no longer listed on
the SmallCap Market, investors might only be able to trade in the
over-the-counter market in the Pink Sheets(R) (a quotation medium operated by
the National Quotation Bureau, LLC) or on the OTC Bulletin Board(R) of the
National Association of Securities Dealers, Inc. This would impair the liquidity
of our securities not only in the number of shares that could be bought and sold
at a given price, which might be depressed by the relative illiquidity, but also
through delays in the timing of transactions and reduction in media coverage.

In the past, following periods of volatility in the market price of the
securities of companies in our industry, securities class action litigation has
often been instituted against companies in our industry. If we face securities
litigation in the future, even if meritless or unsuccessful, it would result in
substantial costs and a diversion of management attention and resources, which
would negatively impact our business.


                                       20


A substantial number of our securities are eligible for future sale and this
could affect the market price for our stock and our ability to raise capital.

The market price of our common stock could drop due to sales of a large number
of shares of our common stock or the perception that these sales could occur. As
of November 30, 2003, we had 42,378,483 shares of common stock outstanding. In
addition, as of November 30, 2003, up to approximately 8,798,000 shares of our
common stock were issuable upon exercise of outstanding options and warrants.

Holders of our stock options and warrants are likely to exercise them, if ever,
at a time when we otherwise could obtain a price for the sale of our securities
that is higher than the exercise price per security of the options or warrants.
This exercise, or the possibility of this exercise, may impede our efforts to
obtain additional financing through the sale of additional securities or make
this financing more costly, and may reduce the price of our common stock.

Provisions of our Certificate of Incorporation and Delaware law could defer a
change of our management which could discourage or delay offers to acquire us.

Provisions of our Certificate of Incorporation and Delaware law may make it more
difficult for someone to acquire control of us or for our stockholders to remove
existing management, and might discourage a third party from offering to acquire
us, even if a change in control or in management would be beneficial to our
stockholders. For example, our Certificate of Incorporation allows us to issue
shares of preferred stock without any vote or further action by our
stockholders. Our Board of Directors has the authority to fix and determine the
relative rights and preferences of preferred stock. Our Board of Directors also
has the authority to issue preferred stock without further stockholder approval,
including large blocks of preferred stock. As a result, our Board of Directors
could authorize the issuance of a series of preferred stock that would grant to
holders the preferred right to our assets upon liquidation, the right to receive
dividend payments before dividends are distributed to the holders of common
stock and the right to the redemption of the shares, together with a premium,
prior to the redemption of our common stock.

                           FORWARD-LOOKING STATEMENTS

The statements set forth under the captions "Company Summary" and elsewhere in
this prospectus, including in "Risk Factors," and those incorporated by
reference herein which are not historical constitute "Forward Looking
Statements" within the meaning of Section 27A of the Securities Act of 1933 and
Section 21E of the Securities Exchange Act of 1934, including statements
regarding the expectations, beliefs, intentions or strategies for the future. We
intend that all forward-looking statements be subject to the safe-harbor
provisions of the Private Securities Litigation Reform Act of 1995. These
forward-looking statements are only predictions and reflect our views as of the
date they are made with respect to future events and financial performance.
Forward-looking statements are subject to many risks and uncertainties which
could cause our actual results to differ materially from any future results
expressed or implied by the forward-looking statements.


                                       21


Examples of the risks and uncertainties include, but are not limited to: the
inherent risks and uncertainties in developing products of the type we are
developing; possible changes in our financial condition; the progress of our
research and development (including the results of clinical trials being
conducted by us and the risk that our lead product candidate, Surfaxin(R), will
not prove to be safe or useful for the treatment of certain indications);
clinical trials require adequate supplies of drug substance and drug product
which may be difficult or uneconomical to procure or manufacture; timely
obtaining sufficient patient enrollment in our clinical trials; the impact of
development of competing therapies and/or technologies by other companies; our
ability to obtain additional required financing to fund our research programs;
our ability to enter into agreements with collaborators and the failure of
collaborators to perform under their agreements with us; the progress of the FDA
approvals in connection with the conduct of our clinical trials and the
marketing of our products; and the additional costs and delays which may result
from requirements imposed by the FDA in connection with obtaining the required
approvals.

Except to the extent required by applicable laws, rules and regulations, we do
not undertake any obligation or duty to publicly update or revise any
forward-looking statements, whether as a result of new information, future
events or otherwise.

                           DESCRIPTION OF COMMON STOCK

General

This prospectus summarizes the general terms of our common stock. For a more
detailed description of the common stock, you should read the applicable
provisions of Delaware law and our restated certificate of incorporation and
bylaws. Under our restated certificate of incorporation, the total number of
shares of all classes of stock that we have authority to issue is 65,000,000,
consisting of 60,000,000 shares of common stock, par value $0.001 per share, and
5,000,000 shares of preferred stock, par value $0.001 per share.

Common Stock

This description of our common stock is a summary. You should keep in mind,
however, that it is our restated certificate of incorporation and our bylaws,
and not this summary, which defines any rights you may acquire as a shareholder.
There may be other provisions in such documents which are also important to you.
You should read such documents for a full description of the terms of our
capital stock.

Subject to any preferential rights of any preferred stock created by our board
of directors, as a holder of our common stock you are entitled to such dividends
as our board of directors may declare from time to time out of funds that we can
legally use to pay dividends. The holders of common stock possess exclusive
voting rights, except to the extent our board of directors specifies voting
power for any preferred stock that, in the future, may be issued.

As a holder of our common stock, you are entitled to one vote for each share of
common stock and do not have any right to cumulate votes in the election of
directors. In the event of our liquidation, dissolution or winding-up, you will


                                       22


be entitled to receive on a proportionate basis any assets remaining after
provision for payment of creditors and after payment of any liquidation
preferences to holders of preferred stock. Holders of our common stock have no
preemptive rights and no conversion rights or other subscription rights. There
are no redemption or sinking fund provisions applicable to our common stock. All
the outstanding shares of common stock are, and the shares offered by this
prospectus, when issued and paid for, will be, validly issued, fully paid and
nonassessable. Our common stock is quoted on Nasdaq under the symbol "DSCO".

Preferred Stock

We currently have no outstanding shares of preferred stock. Under our
certificate of incorporation, our board of directors is authorized to issue
shares of our preferred stock from time to time, in one or more classes or
series, without stockholder approval. Prior to the issuance of shares of each
series, the board of directors is required by the General Corporation Law of the
State of Delaware and our certificate of incorporation to adopt resolutions and
file a certificate of designation with the Secretary of State of the State of
Delaware. Any exercise of our Board of Directors of its rights to do so may
effect the rights and entitlements of the holders of our common stock as set
forth above.

Anti-Takeover Provisions

As a corporation organized under the laws of the State of Delaware, we are
subject to Section 203 of the Delaware General Corporation Law, which restricts
our ability to enter into business combinations with an interested stockholder
or a stockholder owning 15% or more of our outstanding voting stock, or that
stockholder's affiliates or associates, for a period of three years. These
restrictions do not apply if:

- --prior to becoming an interested stockholder, our board of directors approves
  either the business combination or the transaction in which the stockholder
  becomes an interested stockholder;
- --upon consummation of the transaction in which the stockholder becomes an
  interested stockholder, the interested stockholder owns at least 85% of our
  voting stock outstanding at the time the transaction commenced, subject to
  exceptions; or
- --on or after the date a stockholder becomes an interested stockholder, the
  business combination is both approved by our board of directors and authorized
  at an annual or special meeting of our stockholders by the affirmative vote of
  at least two-thirds of the outstanding voting stock not owned by the
  interested stockholder.

Number of Directors; Removal

The bylaws provide that the Board of Directors shall consist of at least three
directors and may consist of such larger number as may be determined, from
time-to-time, by the Board of Directors. The bylaws provide that directors may
be removed with or without cause by the affirmative vote of holders of a
majority of the total voting power of all outstanding securities.


                                       23


This provision and the Board of Director's right to issue shares of our
preferred stock from time to time, in one or more classes or series without
stockholder approval are intended to enhance the likelihood of continuity and
stability in the composition of the policies formulated by our Board of
Directors. These provisions are also intended to discourage some tactics that
may be used in proxy fights.

Transfer Agent and Registrar

The Transfer Agent and Registrar for our common stock is Continental Stock
Transfer & Trust Company.

                                 USE OF PROCEEDS

We will retain broad discretion over the use of the net proceeds from the sale
of our common stock offered hereby. Except as described in any prospectus
supplement or post effective amendment, we currently anticipate using the net
proceeds from the sale of our common stock hereby primarily for clinical
development of Surfaxin, as well as commercialization activities and general
corporate and administrative purposes, including working capital and research
and development expenses. In addition, we may use some of the net proceeds to
hire additional personnel or to pursue internal manufacturing capabilities. The
amounts and timing of the expenditures may vary significantly depending on
numerous factors, such as the progress of our research and development efforts,
technological advances and the competitive environment for Surfaxin and its
intended uses. We might also use a portion of the net proceeds to acquire or
invest in complementary businesses, products and technologies. Pending the
application of the net proceeds, we expect to invest the proceeds in short-term,
interest-bearing instruments or other investment-grade securities.

                                    DILUTION

The net tangible book value of our common stock on September 30, 2003, was
approximately $31.6 million, or approximately $0.75 per share. Net tangible book
value per share is equal to the amount of our total tangible assets, less total
liabilities, divided by the aggregate number of shares of common stock
outstanding. Dilution in net tangible book value per share represents the
difference between the amount per share paid by purchasers of shares of common
stock in this offering and the net tangible book value per share of our common
stock immediately after this offering. After giving effect to the sale of
6,500,000 shares of common stock in this offering at an assumed public offering
price of $9.58 per share, and after deducting estimated underwriting discounts
and commissions and offering expenses, our net tangible book value at September
30, 2003 would have been approximately $90.1 million, or approximately $1.85 per
share. This represents an immediate dilution of $7.73 per share to new investors
purchasing shares of common stock in this offering. The following table
illustrates this dilution:


                                       24


Assumed public offering price per share                                 $ 9.58

Net tangible book value per share as of September 30, 2003              $ 0.75

Increase per share attributable to new investors                          1.10

Net tangible book value per share as of September 30, 2003
after giving effect to this offering                                      1.85

Dilution per share to new investors                                     $ 7.73

The foregoing table does not take into account further dilution to new investors
that could occur upon the exercise of outstanding warrants and options having a
per share exercise price less than the per share offering price to the public in
this offering. As of September 30, 2003, there were 42,080,094 shares of common
stock outstanding, which does not include:

- --5,678,323 shares of common stock issuable upon exercise of options outstanding
  as of September 30, 2003, at a weighted average exercise price of $3.68 per
  share;
- --3,347,552 shares of common stock issuable upon exercise of warrants
  outstanding as of September 30, 2003 at a weighted average exercise price of
  $5.41;
- --159,509 shares of common stock available for future grant under our Amended
  and Restated 1998 Employee Stock Option Plan and 150,000 shares of common
  stock available for future issuance under our 401(k) Plan, all as of September
  30, 2003.

The above table does not reflect the expected reported loss for the last quarter
of fiscal quarter 2003, which would increase the dilution per share.

                              PLAN OF DISTRIBUTION

We may sell the shares being offered by us in this prospectus pursuant to
underwritten public offerings, negotiated transactions, block trades or any
combination of such methods. We may sell the shares to or through underwriters,
dealers, agents or directly to one or more purchasers. We and our agents reserve
the right to accept and to reject in whole or in part any proposed purchase of
shares. A prospectus supplement or post effective amendment, which we will file
each time we effect an offering of any shares, will provide the names of any
underwriters, dealers or agents, if any, involved in the sale of such shares,
and any applicable fees, commissions, or discounts to which such persons shall
be entitled to in connection with such offering.

We and our agents, dealers and underwriters, as applicable, may sell the shares
being offered by us in this prospectus from time to time in one or more
transactions as follows:

- --at a fixed price or prices, which may be changed;
- --at market prices prevailing at the time of sale;
- --at prices related to such prevailing market prices; or
- --at negotiated prices.


                                       25


We may determine the price or other terms of the shares offered under this
prospectus by use of an electronic auction. We will describe how any auction
will determine the price or any other terms, how potential investors may
participate in the auction and the nature of the underwriters' obligations in
the applicable prospectus supplement or amendment.

We may solicit directly offers to purchase shares. We may also designate agents
from time to time to solicit offers to purchase shares. Any agent that we
designate, who may be deemed to be an underwriter as that term is defined in the
Securities Act, may then resell such shares to the public at varying prices to
be determined by such agent at the time of resale. We may engage in at the
market offerings of our common stock. An at the market offering is an offering
of our common stock at other than a fixed price to or through a market maker.
Under Rule 415(a)(4) promulgated under the Securities Act, the total value of at
the market offerings made under this prospectus may not exceed 10% of the
aggregate market value of our common stock held by non-affiliates. We shall name
any underwriter that we engage for an at the market offering in a post-effective
amendment to the registration statement containing this prospectus. We shall
also describe any additional details of our arrangement with such underwriter,
including commissions or fees paid, or discounts offered, by us and whether such
underwriter is acting as principal or agent, in the related prospectus
supplement. If we use underwriters to sell shares, we will enter into an
underwriting agreement with the underwriters at the time of the sale to them,
which agreement shall be filed as an exhibit to the related prospectus
supplement. Underwriters may also receive commissions from purchasers of the
shares.

Underwriters may also use dealers to sell shares. In such an event, the dealers
may receive compensation in the form of discounts, concessions or commissions
from the underwriters and/or commissions from the purchasers for whom they may
act as agents.

Underwriters, dealers, agents and other persons may be entitled, under
agreements that may be entered into with us, to indemnification by us against
certain civil liabilities, including liabilities under the Securities Act or to
contribution with respect to payments which they may be required to make in
respect of such liabilities. Underwriters and agents may engage in transactions
with, or perform services for, us in the ordinary course of business. If so
indicated in the applicable prospectus supplement, we may authorize
underwriters, dealers or other persons to solicit offers by certain institutions
to purchase the shares offered by us under this prospectus pursuant to contracts
providing for payment and delivery on a future date or dates. The obligations of
any purchaser under these contracts will be subject only to those conditions
described in the applicable prospectus supplement, and the prospectus supplement
will set forth the price to be paid for shares pursuant to those contracts and
the commissions payable for solicitation of the contracts.

Any underwriter may engage in over-allotment, stabilizing and syndicate short
covering transactions and penalty bids in accordance with Regulation M of the
Exchange Act. Over-allotment involves sales in excess of the offering size,
which create a short position. Stabilizing transactions involve bids to purchase
the underlying security so long as the stabilizing bids do not exceed a
specified maximum. Syndicate short covering transactions involve purchases of
shares in the open market after the distribution has been completed in order to
cover syndicate short positions. Penalty bids permit the underwriters to reclaim
selling concessions from dealers when the shares originally sold by such dealers


                                       26


are purchased in covering transactions to cover syndicate short positions. These
transactions may cause the price of the shares sold in an offering to be higher
than it would otherwise be. These transactions, if commenced, may be
discontinued by the underwriters at any time.

Each issuance of shares offered under this prospectus will be a new issue of our
common stock, which is currently listed on the Nasdaq SmallCap Market. Any
shares of our common stock sold pursuant to a prospectus supplement will be
listed on the Nasdaq SmallCap Market or on the exchange on which the stock
offered is then listed, subject (if applicable) to official notice of issuance.
Any underwriters to whom we sell shares for public offering and sale may make a
market in the shares that they purchase, but the underwriters will not be
obligated to do so and may discontinue any market making at any time without
notice.

The anticipated date of delivery of the shares offered hereby will be set forth
in the applicable prospectus supplement relating to each offering.

In order to comply with certain state securities laws, if applicable, the shares
may be sold in such jurisdictions only through registered or licensed brokers or
dealers. In certain states, the shares may not be sold unless the shares have
been registered or qualified for sale in such state or an exemption from
regulation or qualification is available and is complied with. Sales of shares
must also be made by us in compliance with all other applicable state securities
laws and regulations.

We shall pay all expenses of the registration of the shares.

                     INTERESTS OF NAMED EXPERTS AND COUNSEL

If and when offered, the validity of the securities being registered hereunder
will be passed upon for us by Dickstein Shapiro Morin & Oshinsky LLP. Attorneys
of Dickstein Shapiro Morin & Oshinsky LLP beneficially own shares of common
stock and warrants to purchase additional shares of our common stock, the
aggregate value of which exceeds $50,000.

                       WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and special reports, proxy statements and other
information with the Securities and Exchange Commission. You may read and copy
any document we file at the Securities and Exchange Commission's public
reference rooms at 450 Fifth Street, N.W., Washington, D.C. 20549. Please call
the Securities and Exchange Commission at 1-800-SEC-0330 for further information
on the public reference rooms. Many of our Securities and Exchange Commission
filings are also available to the public from the Securities and Exchange
Commission's Website at "http://www.sec.gov." We make available free of charge
our annual, quarterly and current reports, proxy statements and other
information upon request. To request such materials, please send an e-mail to
ir@DiscoveryLabs.com or contact John G. Cooper, our Senior Vice President, Chief
Financial Officer, at our address as set forth above.


                                       27


We maintain a Website at "http://www.DiscoveryLabs.com" (this is not a
hyperlink, you must visit this website through an Internet browser). Our Website
and the information contained therein or connected thereto are not incorporated
into this Registration Statement.

We have filed with the Securities and Exchange Commission a registration
statement (which contains this prospectus) on Form S-3 under the Securities Act
relating to the common stock we are offering by this prospectus. This prospectus
does not contain all of the information set forth in the registration statement
and the exhibits and schedules to the registration statement. Please refer to
the registration statement and its exhibits and schedules for further
information with respect to us and the common stock. Statements contained in
this prospectus as to the contents of any contract or other document are not
necessarily complete and, in each instance, we refer you to the copy of that
contract or document filed as an exhibit to the Registration Statement. You may
read and obtain a copy of the registration statement and its exhibits and
schedules from the SEC, as described in the preceding paragraph.

                      INFORMATION INCORPORATED BY REFERENCE

The Securities and Exchange Commission allows us to "incorporate by reference"
the information we file with them, which means that we can disclose important
information to you by referring you to those documents. The information
incorporated by reference is considered to be part of this prospectus, and
information that we file later with the Securities and Exchange Commission will
automatically update and supersede this information. We incorporate by reference
the documents filed with Securities and Exchange Commission listed below:

1.    Our Annual Report on Form 10-K for the fiscal year ended December 31,
      2002, as amended by our Annual Report on Form 10-K/A for the fiscal year
      ended December 31, 2002 filed on April 30, 2003;

2.    Our Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31,
      2003, June 30, 2003, and September 30, 2003;

3.    Our Current Reports on Form 8-K filed with the Securities and Exchange
      Commission on February 26, 2003, May 21, 2003, June 5, 2003, June 20,
      2003, August 13, 2003, October 22, 2003, and November 25, 2003;

4.    The description of our capital stock contained in our Registration
      Statement on Form 8-A filed with the Securities and Exchange Commission on
      July 13, 1995.

5.    All documents we have filed with the Securities and Exchange Commission
      pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after
      the date of the initial registration statement and prior to the
      effectiveness of the registration statement, as well as subsequent to the
      date of this prospectus and prior to the termination of this offering,
      shall be deemed to be incorporated by reference into this prospectus and
      to be a part of this prospectus from the date of the filing of the
      documents.


                                       28


You may request a copy of these filings, at no cost, by sending an e-mail to
ir@DiscoveryLabs.com and requesting any one or more of such filings or by
contacting John G. Cooper, our Senior Vice President, Chief Financial Officer,
at the following address or telephone number: Discovery Laboratories, Inc., 350
South Main Street, Suite 307, Doylestown, Pennsylvania 18901, Attention: John G.
Cooper; (215) 340-4699. Exhibits to the documents will not be sent, unless those
exhibits have specifically been incorporated by reference in this prospectus.

All reports and other documents subsequently filed by us with the Securities and
Exchange Commission pursuant to Sections 13(a), 13(c), 14, or 15(d) of the
Securities Exchange Act of 1934 after the date of this prospectus and prior to
the termination of the offering shall be deemed to be incorporated by reference
in this prospectus and to be a part of this prospectus from the date of filing
of such reports and documents. This prospectus also incorporates by reference
any documents that we file with the Securities and Exchange Commission after the
date of the initial registration statement and prior to the effectiveness of the
registration statement. Any statement contained in any document incorporated or
deemed to be incorporated by reference herein shall be deemed to be modified or
superseded for purposes of this prospectus to the extent that a statement
contained in this prospectus or in any other subsequently filed document which
also is or is deemed to be incorporated by reference in this prospectus modifies
or supersedes such statement. Any statement so modified or superseded shall not
be deemed, except as so modified or superseded, to constitute a part of this
prospectus.

This prospectus is part of a registration statement we filed with the SEC. You
should rely only on the information contained in this prospectus. We have
authorized no one to provide you with different information. We are not making
an offer of these securities in any state where the offer is not permitted. You
should not assume that the information in this prospectus is accurate as of any
date other than the date on the front of the document.

                                     EXPERTS

The consolidated financial statements of Discovery Laboratories, Inc.
("Discovery"), appearing in Discovery's Annual Report (Form 10-K) for the year
ended December 31, 2002, have been audited by Ernst & Young LLP, independent
auditors, as set forth in their report thereon included therein and incorporated
herein by reference, which, as to the period from May 18, 1993 (inception)
through December 31, 1999, (not presented separately therein) is based on the
report of Eisner LLP (formerly Richard A. Eisner & Co. LLP) independent
auditors. Such consolidated financial statements are incorporated herein by
reference in reliance upon such reports given on the authority of such firms as
experts in accounting and auditing.

                                  LEGAL MATTERS

Our legal counsel, Dickstein Shapiro Morin & Oshinsky LLP, will render an
opinion to the effect that the common stock issued pursuant to this prospectus,
if at all, is duly and validly issued, fully paid and non-assessable.


                                       29


NO DEALER, SALESPERSON OR OTHER PERSON IS AUTHORIZED TO PROVIDE YOU WITH
INFORMATION OR TO REPRESENT ANYTHING NOT CONTAINED IN THIS PROSPECTUS. YOU MUST
NOT RELY ON ANY UNAUTHORIZED INFORMATION OR REPRESENTATIONS. WE ARE OFFERING TO
SELL, AND SEEKING OFFERS TO BUY, ONLY THE SHARES OF DISCOVERY LABORATORIES,
INC., COMMON STOCK COVERED BY THIS PROSPECTUS, AND ONLY UNDER CIRCUMSTANCES AND
IN JURISDICTIONS WHERE IT IS LAWFUL TO DO SO. THE INFORMATION CONTAINED IN THIS
PROSPECTUS IS CURRENT ONLY AS OF ITS DATE, REGARDLESS OF THE TIME OF DELIVERY OF
THIS PROSPECTUS OR OF ANY SALE OF THE SHARES.

                                6,500,000 Shares

                       [LOGO] Discovery Laboratories, Inc.

                                  COMMON STOCK

                                December __, 2003


                                       30


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

              Item 14. Other Expenses of Issuance and Distribution

The following table sets forth an estimate of the fees and expenses payable by
the registrant in connection with the registration of the common stock offered
hereby. All of such fees expenses, except for the Registration Fee, are
estimated:

                                                                          Amount
Securities and Exchange Commission registration fee ..........       $  5,037.64
Accounting fees and expenses .................................       $ 10,000.00
Legal fees and expenses ......................................       $ 70,000.00
Miscellaneous fees and expenses ..............................       $ 20,000.00
Total ........................................................       $105,037.64

We shall bear all expenses in connection with the issuance and distribution of
the securities being offered hereby.

               Item 15. Indemnification of Directors and Officers

Article Eighth of our Certificate of Incorporation limits the liability of
directors to the maximum extent permitted by Delaware law. Delaware law provides
that directors of a corporation will not be personally liable for monetary
damages for breach of their fiduciary duties as directors, except for liability
for (i) any breach of their duty of loyalty to the corporation or its
stockholders, (ii) acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law, (iii) unlawful payments of
dividends or unlawful stock repurchases or redemptions as provided in Section
174 of the Delaware General Corporation Law or (iv) any transaction from which
the director derives an improper personal benefit.

Our Bylaws provide that we shall indemnify our directors and officers, the
directors and officers of any of our subsidiaries and any other individuals
acting as directors or officers of any other corporation at our request, to the
fullest extent permitted by law.

We have entered into indemnification agreements with certain of our executive
officers containing provisions that may require us, among other things, to
indemnify them against liabilities that may arise by reason of their status or
service as officers other than liabilities arising from willful misconduct of a
culpable nature and to advance certain expenses incurred as a result of any
proceeding against them as to which they could be indemnified. We have obtained
limited directors' and officers' liability insurance. These provisions in the
Certificate of Incorporation and the By-Laws do not eliminate the officers' and
directors' fiduciary duty, and in appropriate circumstances, equitable remedies
such as injunctive or other forms of non-monetary relief will remain available
under Delaware law. In addition, each officer and director will continue to be
subject to liability for breach of their duty of loyalty to us for acts or
omissions not in good faith or involving intentional misconduct, for knowing


                                       31


violations of law, for actions leading to improper personal benefit to the
officer or director and for payment of dividends or approval of stock
repurchases or redemptions that are unlawful under Delaware law. The provisions
also do not affect an officer's or director's responsibilities under any other
law, such as the federal securities laws or state or federal environmental laws.

                                Item 16. Exhibits

Exhibit No.    Description
- -----------    -----------

3.1            Restated Certificate of Incorporation of Discovery, dated
               September 18, 2002.

3.2            Amended and Restated By-laws of Discovery, dated December 12,
               2003.

5.1            Opinion of Dickstein Shapiro Morin & Oshinsky LLP, legal counsel.

23.1           Consent of Ernst & Young LLP, independent auditors.

23.2           Consent of Eisner LLP independent auditors.

23.3           Consent of Dickstein Shapiro Morin & Oshinsky LLP, legal counsel
               (included in Exhibit 5.1).

24.1           Powers of Attorney (included in Signature Pages to this
               Registration Statement on Form S-3).

                              Item 17. Undertakings

We, the undersigned Registrant hereby undertake:

(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to the Registrant Statement to:

      (i) Include any prospectus required by Section 10(a)(3) of the Securities
      Act of 1933;

      (ii) Reflect in the prospectus any facts or events arising after the
      effective date of the Registration Statement (or the most recent
      post-effective amendment thereof) that individually or in the aggregate
      represent a fundamental change in the information set forth in the
      Registration Statement. Notwithstanding the foregoing, any increase or
      decrease in volume of securities offered (if the total dollar value of
      securities offered would not exceed that which was registered) and any
      deviation from the low or high end of the estimated maximum offering range
      may be reflected in the form of prospectus filed with the Commission
      pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
      price represent no more than 20% change in the maximum aggregate offering
      price set forth in the "Calculation of Registration Fee" table in the
      effective registration statement; and


                                       32


      (iii) Include any material information with respect to the plan of
      distribution not previously disclosed in the Registration Statement or any
      material change to such information in the Registration Statement;

provided, however, that paragraphs (i) and (ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is
contained in periodic reports filed by the Registrant pursuant to Section 13 or
15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the Registration Statement.

(2) That, for the purpose of determining any liability under the Securities Act
of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of
the securities being registered which remain unsold at the termination of the
offering.

(4) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

(5) Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

(6) For purposes of determining any liability under the Securities Act of 1933,
the information omitted from the form of prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form of
prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.

(7) For the purpose of determining any liability under the Securities Act of
1933, each post-effective amendment that contains a form of prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.


                                       33


                                   SIGNATURES

Pursuant to the requirement of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Doylestown, Commonwealth of Pennsylvania, on the 19th
day of December, 2003.

                                                 DISCOVERY LABORATORIES, INC.
                                                 (Registrant)


                                                 By: /s/ Robert J. Capetola
                                                     ---------------------------
                                                     Robert J. Capetola, Ph.D.
                                                     President and
                                                     Chief Executive Officer

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
constitutes and appoints each of Robert J. Capetola, Ph.D., and David L. Lopez,
C.P.A., Esq., or any of them, each acting alone, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution,
for such person in his name, place and stead, in any and all capacities, in
connection with the Registrant's Registration Statement on Form S-3 under the
Securities Act of 1933, as amended, including, without limiting the generality
of the foregoing, to sign the Registration Statement in the name and on behalf
of the Registrant or on behalf of the undersigned as a director or officer of
the Registrant, and any and all amendments or supplements to the Registration
Statement, including any and all stickers and post-effective amendments to the
Registration Statement, and to sign any and all additional registration
statements relating to the same offering of securities as the Registration
Statement that are filed pursuant to Rule 462(b) under the Securities Act of
1933, as amended, and to file the same, with all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission
and any applicable securities exchange or securities self-regulatory body,
granting unto said attorneys-in-fact and agents, each acting alone, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents, or their substitutes or substitute, may
lawfully do or cause to be done by virtue hereof.


                                       34


Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed by the following persons in the capacities indicated
on the dates indicated.

Signature                       Name & Title                   Date
- ---------                       ------------                   ----


/s/ Robert J. Capetola          Robert J. Capetola, Ph.D.      December 19, 2003
- ---------------------------     President, Chief Executive
                                Officer and Director


/s/ John G. Cooper              John G. Cooper                 December 19, 2003
- ---------------------------     Senior Vice President and
                                Chief Financial Officer


/s/Cynthia Davis                Cynthia Davis                  December 19, 2003
- ---------------------------     Controller and Principal
                                Accounting Officer


/s/ Herbert McDade              Herbert McDade, Jr.            December 19, 2003
- ---------------------------     Chairman of the Board of
                                Directors


/s/ Max Link                    Max Link, Ph.D.                December 19, 2003
- ---------------------------     Director


/s/ Antonio Esteve              Antonio Esteve                 December 19, 2003
- ---------------------------     Director


/s/ Marvin E. Rosenthale        Marvin E. Rosenthale           December 19, 2003
- ---------------------------     Director


                                       35


                          Discovery Laboratories, Inc.
                                    Form S-3
                                Index to Exhibits

Exhibit No.                               Description
- -----------                               -----------

3.1(1)            Restated Certificate of Incorporation of Discovery, dated
                  September 18, 2002.

3.2               Amended and Restated By-laws of Discovery, dated December 12,
                  2003.*

5.1               Opinion of Dickstein Shapiro Morin & Oshinsky LLP, legal
                  counsel.*

23.1              Consent of Ernst & Young LLP, independent auditors.*

23.2              Consent of Eisner LLP independent auditors.*

23.3              Consent of Dickstein Shapiro Morin & Oshinsky LLP, legal
                  counsel (included in Exhibit 5.1).*

24.1              Powers of Attorney (included in Signatures Page to this
                  Registration Statement on Form S-3).*

- ----------
* Filed herewith.

(1) Incorporated by reference to Discovery's Annual Report on Form 10-K for the
year ending December 31, 2002.


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