1

 As filed with the Securities and Exchange Commission on February 16, 1999
                         Registration No. 333-69815

                   SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C. 20549

                          AMENDMENT NO. 1 TO
                              FORM S-3
                      REGISTRATION STATEMENT UNDER
                       THE SECURITIES ACT OF 1933

                     Advanced Polymer Systems, Inc.
                     ------------------------------
        (Exact name of registrant as specified in its charter)

Delaware                                                94-2875566
- -------------------------------                -------------------
(State or other jurisdiction of                (I.R.S. employer
 incorporation or organization)                identification no.)

     123 Saginaw Drive, Redwood City, California 94063 (650) 366-2626
     ----------------------------------------------------------------
   (Address, including zip code, and telephone number, including area 
          code, of registrant's principal executive offices)


                         Michael O'Connell
                    Executive Vice President and
                      Chief Financial Officer
                   Advanced Polymer Systems, Inc.
                          123 Saginaw Drive
                  Redwood City, California  94063
                         (650) 366-2626
              ---------------------------------------
              (Name, address, including zip code, and
               telephone number, including area code,
                      of agent for service

                            Copy to:
                      Richard A. Peers, Esq.
                 Heller Ehrman White & McAuliffe
                      525 University Avenue
                Palo Alto, California  94301-1908
                     (650) 324-7000 (phone)
                      (650) 324-0638 (fax)

     Approximate date of commencement of proposed sale to the public:
   As soon as practicable after the effective date of this Registration
                               Statement.

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, as amended, 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 of 1933, as amended, 
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 of 1933, as amended, 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      Proposed
Title of                    Maximum       Maximum
Shares        Amount        Offering      Aggregate     Amount of
to be         to be         Price per     Offering      Registration
Registered    Registered    Share (1)     Price         Fee
- -----------------------------------------------------------------------
                                            
Common 
Stock         200,000       $4.75         $950,000      $264.10(2)
=======================================================================
<FN>
(1) Estimated in accordance with Rule 457(c) solely for the purpose of 
computing the amount of the registration fee based on the average of the 
high and low prices of the company's common stock on the Nasdaq National 
Market on December 28, 1998.
(2) Previously paid.
</FN>


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 that specifically states that this 
Registration Statement shall thereafter become effective in accordance 
with Section 8(a) of the Securities Act of 1933 or until this Registration 
Statement shall become effective on such date as the Securities and 
Exchange Commission, acting pursuant to said Section 8(a), may determine.

  2

  PROSPECTUS (Subject to Completion) Dated February 16, 1999

                 ADVANCED POLYMER SYSTEMS, INC.
              up to 200,000 Shares of Common Stock


Biosource Technologies, Inc. may offer and sell up to 200,000 shares of 
Advanced Polymer Systems common stock.  We will pay the expenses of this 
offering.

On January 29, 1999, the company had 19,993,311 shares of its common stock 
issued and outstanding. Our common stock trades on the Nasdaq National 
Market under the symbol "APOS".  On January 29, 1999, the last reported 
sale price of the common stock on the Nasdaq National Market was $4.75 per 
share.

Beginning on page 4, we have listed several "RISK FACTORS" which you 
should consider. You should read the entire prospectus carefully before 
you make your investment decision.

The Securities and Exchange Commission and state regulatory authorities 
have not approved or disapproved 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 February --, 1999

You should rely only on the information contained in this prospectus.  We 
have not authorized anyone to provide you with information different from 
that contained in this prospectus.  The selling security holder is 
offering to sell, and seeking offers to buy, shares of Advanced Polymer 
Systems, Inc. common stock only in jurisdictions where offers and sales 
are permitted. The information contained in this prospectus is accurate 
only as of the date of this prospectus, regardless of the time of delivery 
of this prospectus or of any sale of the shares.

  3

                         TABLE OF CONTENTS

                                   Page
                                  
Risk Factors                           4
Where You Can Find More Information    7
Documents Incorporated by Reference    7
Forward-Looking Information            8
Selling Security Holder                8
Plan of Distribution                  10
Description of Capital Stock          11
Use of Proceeds                       12
Legal Matters                         13
Experts                               14


  4
                           RISK FACTORS

You should consider carefully the following risk factors, along with other 
information contained or incorporated by reference in this prospectus, in 
deciding whether to invest in our securities.  These factors, among 
others, may cause actual results, events or performances to differ 
materially from those expressed in any forward-looking statements we made 
in this prospectus.

Historically, we have not been profitable.  In the past, we have not 
generated enough cash from operations to cover our costs.  We have 
operated in the past by using cash generated from financings, including 
the sale of securities.  However, we have been profitable in certain 
recent quarters, and have had growth in revenues, derived principally from 
product sales, license fees and royalties.  However, we may not be able to 
continue to generate significant future revenues or continue to sell 
products at a profit.

We may not be able to obtain additional financing that we need in the 
future.  If our costs are higher than expected or revenues do not meet 
expectations, we may have to generate additional funds to sustain and 
develop our business, including through joint ventures, licensing and debt 
and equity financings.  We anticipate that our existing capital resources 
will permit us to meet our capital and operational requirements through at 
least the end of 1999. However, we base this expectation on our current 
operating plan which can change as a result of many factors.

If such additional funding is required, but is unavailable on commercially 
reasonable terms, we would have to significantly reduce operating 
expenses, by decreasing spending on:
 - outside clinical programs, or
 - a variety of other discretionary external expenditures.

These events could have a material adverse effect on the Company.

We may need to sell additional securities to raise funds to operate.  
Although we expect to meet our capital and operational requirements 
through at least the end of 1999, we may have to generate additional funds 
to sustain and develop our business.  In the past, one source of funds was 
the sale of additional securities.  If we need to raise funds to operate 
we may have to sell additional securities at a discount.  These sales 
could:
 - dilute existing shareholders' equity ownership, and
 - decrease stock value since we will be selling it at discounted prices.

There are risks relating to market acceptance of our Microsponge(R) 
products.  Our Microsponge products are based on relatively new 
technologies. Although we have been commercially successful with numerous 
ingredients and agents, such as creams to treat acne and to reduce the 
appearance of fine lines and wrinkles, commercialization of products 
utilizing our Microsponge delivery systems is still in its early stages.  
  5
We may not be able to continue to successfully commercialize our 
Microsponge products, which would have an adverse effect on the Company.

Some of our products must satisfy government safety regulations.   The 
regulatory process necessary to establish product safety and efficacy in 
the United States and in other countries where our products may be 
distributed includes preclinical testing and clinical trials.   This can 
be very time consuming and costly.

Furthermore, even after significant time and expenditure, regulatory 
agency approvals may not be obtained, which could adversely effect our 
results.  Moreover, if regulatory agency approval of a product is granted, 
such approval may be 
 - limited to certain uses of the product, or
 - temporary, as marketed product and its manufacture are subject to
   continued review by regulatory authorities.

Personal care products are not currently subject to active regulation by 
the FDA in the same manner as pharmaceutical products.  Nonetheless, more 
extensive regulation could occur in the future.  This regulation could 
impose additional costs or slow the introduction of personal care products 
utilizing our delivery systems. 

Our competitors are larger and have more experience.  Other companies are 
developing products based on similar technologies for cosmetic, 
therapeutic and industrial applications.  We are in competition with other 
companies that possess:
 - greater financial and technical resources,
 - greater manufacturing and marketing capabilities and
 - more experience in testing and obtaining any necessary regulatory
   approval.
We may not be able to successfully compete against larger and more 
experienced companies.

Our stock price is volatile and could continue to fluctuate.  The market 
price of our Common Stock has been and may continue to be highly volatile.  
Future events, many of which will be beyond the control of the Company, 
may have a significant impact on the market price of the Company's Common 
Stock.  The following events could have a depressive effect on the market 
price of the Company's Common Stock:
 - quarterly fluctuations in revenues and financial results; 
 - future sales of Shares by the Selling Stockholder or by other 
   current stockholders, or 
 - future sales of Shares by option holders and warrant holders who
   exercise Company stock options or warrants.

These events could have a material adverse effect on the company and its 
stockholders.

Arrangements with collaborative partners may not be successful.  We have 
entered into collaborative agreements with certain major corporations 
  6
pursuant to which these companies are entitled to specific product and 
marketing rights.  We also rely, at least in part, on additional 
collaborative agreements to develop and commercialize certain future 
products.  However, we may not be able to negotiate acceptable 
collaborative agreements in the future.  Our existing collaborative 
agreements or future collaborative agreements may not be successful.

Our anti-takeover provisions may inhibit a takeover or reduce 
consideration received by stockholders.  On August 19, 1996, the Board of 
Directors adopted a Stockholders Rights Plan, which allows stockholders to 
purchase Company Stock at a discount in the event of a tender offer or 
when any person acquires 20% or more of the outstanding Common Stock of 
the Company, subject to certain exceptions.  The existence of this anti-
takeover provision may:
 - delay, defer or prevent a change of control of the Company;
 - make the Company less attractive to any potential acquiror; 
 - cause stockholders to receive less for their shares than would
   otherwise be available in the event of a takeover attempt.

We may incur costs in order to adequately address Year 2000 issues.  Year 
2000 exposure is the result of computer programs using two instead of four 
digits to represent the year.  These computer programs may erroneously 
interpret dates beyond the year 1999, which could cause system failures or 
other computer errors, leading to disruptions in operations.  We have 
begun to develop a program to limit or eliminate Y2K exposures.  This 
program will try to accomplish the following:
 - identify those systems, applications and third-party relationships
   from which we have exposure to Y2K disruptions in operations;
 - develop and implement action plans to achieve Y2K compliance in 
   all areas prior to the end of 1999;
 - develop contingency plans which would be implemented should Y2K
   compliance not be achieved in order to minimize disruptions in
   operations;
 - test each major area of exposure to ensure compliance.

We have not yet completed this program.  We expect to complete it by the 
end of 1999, though we may not be successful in doing so.

Based on current estimates, we expect the total cost of our Y2K program 
will be less than $650,000, approximately $510,000 of which has been 
incurred to date.  The estimate may change materially as we continue to 
review and audit the results of the implemented program.

Failure to complete all necessary procedures by the Year 2000 may have a 
material adverse impact on the operations of the Company.  Failure of 
third parties, such as customers and suppliers, to resolve year 2000 
problems in their systems would also have a material adverse impact on the 
Company.

  7
               WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly, and current reports, proxy statements, and 
other documents with the Securities and Exchange Commission.  You may read 
and copy any document we file at the SEC's public reference room at 
Judiciary Plaza Building, 450 Fifth Street, N.W., Room 1024, Washington, 
D.C. 20549. You should call 1-800-SEC-0330 for more information on the 
public reference room. The SEC maintains an internet site at 
http://www.sec.gov where certain information regarding issuers (including 
Advanced Polymer Systems) may be found.

This prospectus is part of a registration statement that we filed with the 
SEC (Registration No. 333-69815).  The registration statement contains 
more information than this prospectus regarding the Company and its common 
stock, including certain exhibits and schedules. You can get a copy of the 
registration statement from the SEC at the address listed above or from 
its internet site.

               DOCUMENTS INCORPORATED BY REFERENCE

The SEC allows us to "incorporate" into this prospectus information we 
file with the SEC in other documents. This means that we can disclose 
important information to you by referring to other documents that contain 
that information. The information may include documents filed after the 
date of this prospectus which update and supersede the information you 
read in this prospectus.  We incorporate by reference the documents listed 
below, except to the extent information in those documents is different 
from the information contained in this prospectus, and all future 
documents filed with the SEC under Sections 13(a), 13(c), 14, or 15(d) of 
the Securities Exchange Act of 1934 until we terminate the offering of 
these shares.


      SEC Filing
     (File No. 000-16109)                   Period/Filing Date
     --------------------                   ------------------
                                       
     Annual Report on Form 10-K           Year ended December 31, 1997
     Quarterly Reports on Form 10-Q       Quarter ended March 31, 1998
                                          Quarter ended June 30, 1998
                                          Quarter ended September 30, 1998


You may request a copy of these documents, at no cost, by writing to:

                     Advanced Polymer Systems, Inc.
                     123 Saginaw Drive
                     Redwood City, California 94063
                     Attention: Investor Relations
                     Telephone:   (650) 366-2626

  8
                     FORWARD-LOOKING INFORMATION

Statements made in this prospectus or in the documents incorporated by 
reference herein that are not statements of historical fact are 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.  A number 
of risks and uncertainties, including those discussed under the caption 
"Risk Factors" below and the documents incorporated by reference herein 
could affect such forward-looking statements and could cause actual 
results to differ materially from the statements made.

                         SELLING SECURITY HOLDER

The following table sets forth the name of the selling security holder, 
the maximum number of shares of common stock owned beneficially by the 
selling shareholder as of January 29, 1999 and the maximum number of 
shares that may be offered pursuant to this prospectus.  This information 
is based upon information provided by the selling security holder.  
Applicable percentage of ownership is based on 19,993,311 shares of common 
stock outstanding as of January 29, 1999.



  9


                              Common Stock                              Common Stock
                              Beneficially Owned     Common Stock       Beneficially owned
                              Prior to Offering      to be sold         After Offering(1)
                              --------------------   ------------       -----------------
                                                                    
Selling Security Holder       Number       Percent                      Number     Percent
- -----------------------       ------       -------                      ------     -------
Biosource Technologies, Inc   200,000       1%       200,000                --          --



 10
                           PLAN OF DISTRIBUTION

The selling security holder may offer its shares from time to time in one 
or more of the following transactions:
 - in the over-the-counter market;
 - on the Nasdaq National Market (or any other exchange on which the 
shares may be listed);
 - in negotiated transactions, or 
 - a combination of such methods of sale.
The selling stockholder may sell the shares at market prices prevailing at 
the time of sale, at prices related to such prevailing prices or at 
negotiated prices, and may use the shares to cover short positions 
previously established.  The selling security holder may use broker-
dealers to sell the shares.  The broker-dealers will either receive 
discounts or commissions from the selling security holder, or they will 
receive commissions from purchases of shares.

The selling security holder and any broker-dealers that participate in the 
distribution may under certain circumstances be deemed to be 
"underwriters" within the meaning of the Securities Act.  Any commissions 
received by these broker-dealers and any profits realized on the resale of 
shares by them may be considered underwriting discounts and commissions 
under the Securities Act.  The selling security holder may agree to 
indemnify these broker-dealers against certain liabilities, including 
liabilities under the Securities Act.  Additionally, if the selling 
security holder desires to sell 20,000 or more of the shares to the 
public, it will so inform the Company and provide the Company up to five 
days to find a block buyer for such shares.

Broker-dealers may agree with the selling security holder to sell a 
specified number of shares at a stipulated price per share, and may 
purchase as principal any unsold shares at the price required to fulfill 
the broker-dealer commitment.  Broker-dealers who acquire shares as 
principal may thereafter resell the shares from time to time in 
transactions in the over-the-counter market, in negotiated transactions or 
otherwise at market prices prevailing at the time of sale or at negotiated 
prices, and may pay to or receive from the purchasers commissions computed 
as described above.

Under the rules and regulations of the SEC, any person engaged in the 
distribution or the resale of shares may not simultaneously engage in 
market making activities with respect to the common stock of the company 
for a period of two business days prior to the commencement of such 
distribution.  The selling security holders will also be subject to 
applicable provisions of the Exchange Act, and the rules and regulations 
under the Exchange Act which may limit the timing of purchases and sales 
of shares of the company's common stock by the selling security holders.

The selling security holder will pay all commissions, transfer taxes, and 
other expenses associated with the sale of securities by them.  The shares 
offered in this prospectus are being registered pursuant to contractual
 11
obligations of the company, and the company has paid the expenses of the 
preparation of this prospectus.  We have not made any underwriting 
arrangements with respect to the sale of shares offered hereby.

                  DESCRIPTION OF CAPITAL STOCK

As of the date of this Prospectus, the authorized capital stock of the 
Company consists of 50,000,000 shares of $0.01 par value Common Stock 
and 2,500,000 shares of $0.01 par value Preferred Stock.

COMMON STOCK

As of January 31, 1999, there were 19,993,311 shares of Common Stock 
outstanding held of record by 570 stockholders.  The holders of Common 
Stock are entitled to one vote for each share held of record on all 
matters submitted to a vote of the stockholders.  Subject to preferences 
that may be applicable to any outstanding Preferred Stock, holders of 
Common Stock are entitled to receive ratably such dividends as may be 
declared by the Board of Directors out of funds legally available 
therefor.  In the event of a liquidation, dissolution or winding up of 
the Company, holders of Common Stock are entitled to share ratably in 
all assets remaining after payment of liabilities and the liquidation 
preference of any outstanding Preferred Stock.  Holders of Common Stock 
have no preemptive rights, no right to convert their Common Stock into 
any other securities, and no right to vote cumulatively for the election 
of directors.  The outstanding shares of Common Stock are fully paid and 
nonassessable.

On August 19, 1996, the Board of Directors adopted a Stockholders Rights 
Plan, which allows stockholders to purchase Common Stock at discount in 
the event of a tender offer or when any person acquires 20% or more of 
the outstanding Common Stock of the Company, subject to few exceptions.

The Company has not paid cash dividends on its Common Stock and does not 
plan to pay any such dividends in the foreseeable future.  Under certain 
lending agreements, the Company is restricted from declaring or paying 
dividends on its Common Stock.

PREFERRED STOCK

The Board of Directors may authorize the issuance of up to 2,500,000 
shares of Preferred Stock in one or more series and fix the rights, 
preferences, privileges and restrictions thereof, including dividend 
rights, conversion rights, voting rights, terms of redemption, 
liquidation preferences and the number of shares constituting any series 
or the designation of such series, without any further vote or action by 
the stockholders.  The issuance of Preferred Stock may have the effect 
of delaying, deferring or preventing a change in control of the company 
without action by the shareholders and could adversely affect the rights 
and powers, including voting rights, of the holders of Common Stock.  In 
certain circumstances, the issuance of Preferred Stock could depress the 
 12
market price of Common Stock.  As of February 16, 1999, there were no 
shares of Preferred Stock outstanding.

                            USE OF PROCEEDS

The selling security holder was issued up to 200,000 shares under a 
Settlement Agreement and Release, dated December 22, 1998, between the 
company and the selling security holder in connection with the settlement 
of a lawsuit between them. The selling security holder will receive all of 
the proceeds from the sale of the shares and will pay all underwriting 
discounts and selling commissions, if any, applicable to the sale of the 
shares.  We will pay the expenses of registration of the sale of the 
shares. 

                             LEGAL MATTERS

The validity of the shares offered hereby will be passed upon for us by 
Heller Ehrman White & McAuliffe, Palo Alto, California, counsel to the 
company.  Julian N. Stern, the Secretary of the company, is the owner of 
179,000 shares of common stock and is the sole stockholder and employee of 
a professional corporation that is a partner of Heller Ehrman White & 
McAuliffe.

                                 EXPERTS

The financial statements of Advanced Polymer Systems, Inc. which appear in 
its Annual Report (Form 10-K) for the year ended December 31, 1997 have 
been audited by KPMG Peat Marwick LLP, independent auditors, as set forth 
in their report thereon and included therein and incorporated herein by 
reference.  Such financial statements are incorporated herein by reference 
in reliance upon such report given upon the authority of such firm as 
experts in accounting and auditing.

 13
                                 PART II

                   INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses Of Issuance And Distribution.

The following table sets forth various expenses in connection with the 
sale and distribution of the securities being registered. All of the 
amounts shown are estimates except for the Securities and Exchange 
Commission Registration Fee.

    Securities and Exchange Commission Registration Fee      $   264.10
    Accounting Fees                                            5,000.00
    Legal Fees and Disbursements                              10,000.00
    Miscellaneous                                                735.90
                                                             ----------
    Total                                                    $16,000.00
                                                             ==========

Item 15.  Indemnification Of Officers And Directors.

The registrant has the power to indemnify its officers and directors 
against liability for certain acts pursuant to Section 145 of the General 
Corporation Law of the State of Delaware. Section B of Article VI of the 
registrant's Certificate of Incorporation provides:
"(1) Right to Indemnification.  Each person who was or is made a party or 
is threatened to be made a party to or is involved in any action, suit or 
proceeding, whether civil, criminal, administrative or investigative 
(hereinafter a "proceeding"), by reason of the fact that he or she, or a 
person of whom he or she is the legal representative, is or was a director 
or officer, of the Corporation or is or was serving at the request of the 
Corporation, as a director, officer, employee or agent of another 
corporation or of a partnership, joint venture, trust or other enterprise, 
including service with respect to employee benefit plans, whether the 
basis of such proceeding is alleged action in an official capacity as a 
director, officer, employee or agent or in any other capacity while 
serving as a director, officer, employee or agent, shall be indemnified 
and held harmless by the Corporation to the fullest extent authorized by 
the General Corporation Law of the State of Delaware, as the same exists 
or may hereafter be amended (but, in the case of any such amendment, only 
to the extent that such amendment permits the Corporation to provide 
broader indemnification rights than said law permitted the Corporation to 
provide prior to such amendment), against all expense, liability and loss 
(including attorneys' fees, judgments, fines, ERISA excise taxes or 
penalties and amounts paid or to be paid in settlement) reasonably 
incurred or suffered by such person in connection therewith and such 
indemnification shall continue as to a person who has ceased to be a 
director, officer, employee or agent and shall inure to the benefit of his 
or her heirs, executors and administrators; provided, however, that, the 
Corporation shall indemnify any such person seeking indemnification in 
connection with a proceeding (or part thereof) initiated by such person 
 14
only if such proceeding (or part thereof) was authorized by the board of 
directors of the Corporation. The right to indemnification conferred in 
this Section B shall be a contract right and shall include the right to be 
paid by the Corporation the expenses incurred in defending any such 
proceeding in advance of its final disposition; provided, however, that, 
if the General Corporation Law of the State of Delaware requires, the 
payment of such expenses incurred by a director or officer in his or her 
capacity as a director or officer (and not in any other capacity in which 
service was or is rendered by such person while a director or officer, 
including, without limitation, service to an employee benefit plan) in 
advance of the final disposition of a proceeding, shall be made only upon 
delivery to the Corporation of an undertaking, by or on behalf of such 
director or officer, to repay all amounts so advanced if it shall 
ultimately be determined that such director or officer is not entitled to 
be indemnified under this Section or otherwise. The Corporation may, by 
action of its Board of Directors, provide indemnification to employees and 
agents of the Corporation with the same scope and effect as the foregoing 
indemnification of directors and officers.

(2) Non-Exclusivity of Rights.  The right to indemnification and the 
payment of expenses incurred in defending a proceeding in advance of its 
final disposition conferred in this Section B shall not be exclusive of 
any other rights which any person may have or hereafter acquire under any 
statute, provisions of this Certificate of Incorporation, Bylaw, 
agreement, vote of stockholders or disinterested directors or otherwise.

(3) Insurance.  The Corporation may maintain insurance, at its expense, to 
protect itself and any director, officer, employee or agent of the 
Corporation or another corporation, partnership, joint venture, trust or 
other enterprise against any such expense, liability or loss, whether or 
not the Corporation would have the power to indemnify such person against 
such expense, liability or loss under Delaware General Corporation Law."
Registrant maintains directors' and officers' liability insurance in the 
amount of $5,000,000 which covers civil liabilities. Such insurance helps 
the Registrant to attract qualified officers and directors, by providing a 
means for the Company to pay the costs and expenses involved in the event 
civil litigation is brought against of one of the Registrant's officers or 
directors.

Item 16.  Exhibits.

EXHIBIT    DESCRIPTION

5          -- Opinion of Heller, Ehrman, White & McAuliffe(1)
23.1       -- Consent of Heller, Ehrman, White & McAuliffe (filed as 
              part of Exhibit 5)
23.2       -- Consent of KPMG Peat Marwick LLP 
[FN]
(1) Previously filed.
</FN>

 15
Item 17.  Undertakings.

A.  The undersigned Registrant hereby undertakes:
    (1)  To file, during any period in which offers or sales are being 
made, a post-effective amendment to this registration statement;

         (i)   To include any prospectus required by section 10(a)(3) of 
the Securities Act of 1933;

         (ii)  To 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) which, individually or in the aggregate, 
represent a fundamental change in the information set forth in the 
Registration Statement;

         (iii) To 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;

    (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.

B.  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 
offering therein, and the offering of such securities at that time shall 
be deemed to be the initial bona fide offering thereof.

C.  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 provisions described 
under Item 15 above, 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 against the Registrant by such director, officer 
  16
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.


 17
                              SIGNATURES

Pursuant to the requirements 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 Redwood City, State of California, on the 
29th day of December, 1998.

                                    ADVANCED POLYMER SYSTEMS, INC.

                                    By: /S/ Michael O'Connell
                                        -------------------------
                                        Michael O'Connell
                                        Chief Financial Officer

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


Signature                   Title                    Date
- ----------------------------------------------------------------------
                                               
/S/ John J. Meakem, Jr.     Chairman, President,     February 16, 1999
- -------------------------   Chief Executive          -----------------
John J. Meakem, Jr.         Officer (Principal
                            Executive Officer)

/S/ Michael O'Connell       Executive Vice           February 16, 1999
- -------------------------   President, Chief         -----------------
Michael O'Connell           Administrative Officer
                            and Chief Financial
                            Officer (Principal 
                            Financial Officer and
                            Principal Accounting
                            Officer)

/S/ Carl Ehmann*            Director                 February 16, 1999
- -------------------------                            -----------------
Carl Ehmann


/S/ Jorge Heller*           Director                 February 16, 1999
- -------------------------                            -----------------
Jorge Heller


/S/ Peter Riepenhausen*     Director                 February 16, 1999
- -------------------------                            -----------------
Peter Riepenhausen


/S/ Toby Rosenblatt*        Director                 February 16, 1999
- -------------------------                            -----------------
Toby Rosenblatt


/S/ Gregory H. Turnbull*    Director                 February 16, 1999
- -------------------------                            -----------------
Gregory H. Turnbull


/S/ C. Anthony Wainwright*  Director                 February 16, 1999
- -------------------------                            -----------------
C. Anthony Wainwright


/S/ Dennis Winger*          Director                 February 16, 1999
- -------------------------                            -----------------
Dennis Winger

<FN>
* by /S/ Michael O'Connell Attorney-in-fact.
</FN>

                    ADVANCED POLYMER SYSTEMS, INC.

                             EXHIBIT INDEX
                             -------------

EXHIBIT      DESCRIPTION
- -------      -----------

5          -- Opinion of Heller, Ehrman, White & McAuliffe(1)
23.1       -- Consent of Heller, Ehrman, White & McAuliffe 
              (filed as part of Exhibit 5)
23.2       -- Consent of KPMG Peat Marwick LLP 
[FN]
(1) Previously filed.
</FN>