NEUROBIOLOGICAL TECHNOLOGIES INC /CA/
SB-2, 1999-12-29
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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    As filed with the Securities and Exchange Commission on December 29, 1999
                                                      Registration No. 333-_____
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM SB-2

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
           (Name of Small Business Issuer as specified in its charter)

<TABLE>
<S>                                <C>                              <C>
           Delaware                            2836                      94-3049219
(State or other jurisdiction of    (Primary Standard Industrial       (I.R.S. employer
 incorporation or organization)     Classification Code Number)     identification number)
</TABLE>
        1387 Marina Way South, Richmond, California 94804, (510) 215-8000
   (Address, including zip code, and telephone number, including area code, of
                    Registrant's principal executive offices)

                                   ----------

                                 Paul E. Freiman
                      President and Chief Executive Officer
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                              1387 Marina Way South
                           Richmond, California 94804
                                 (510) 215-8000
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                                   ----------

                                   Copies to:

                               Stephen C. Ferruolo
                         Heller Ehrman White & McAuliffe
                        4250 Executive Square, 7th Floor
                            San Diego, CA 92037-9103
                            Telephone: (858) 450-8400
                            Facsimile: (858) 450-8499

                                   ----------

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

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 number of the earlier effective registration statement for the same
offering. [ ]

If this form is a  post-effective  amendment filed pursuant to Rule 462(d) under
the  Securities  Act,  check  the  following  box and  list the  Securities  Act
registration 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
<TABLE>
<CAPTION>
=====================================================================================================
                                              Proposed Maximum    Proposed Maximum
   Title of Each Class of       Amount to be   Aggregate Price   Aggregate Offering     Amount of
 Securities to be Registered     Registered     Per Security           Price         Registration Fee
- -----------------------------------------------------------------------------------------------------
<S>                               <C>              <C>              <C>                   <C>
Common Stock, par value $.001     8,039,580        $3.03(1)         $24,359,927(1)        $6,431
=====================================================================================================
</TABLE>
(1)  Estimated  solely for the purpose of computing  the amount of  registration
     fee pursuant to Rule 457(c) under the  Securities  Act of 1933, as amended,
     based  on  the  average  of  the  bid  and  asked  price  reported  of  the
     Registrant's Common Stock on the OTC Bulletin Board on December 27, 1999.

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.
<PAGE>
THE INFORMATION IN THE PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE ARE NOT
ALLOWED TO 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 IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES
IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.

PROSPECTUS (Subject to Completion) Dated December 29, 1999

                       NEUROBIOLOGICAL TECHNOLOGIES, INC.

                        5,434,700 SHARES OF COMMON STOCK

       2,604,880 SHARES OF COMMON STOCK ISSUABLE UPON EXERCISE OF WARRANTS

                                   ----------

     These shares may be offered and sold from time to time by the  stockholders
of the Company identified in this prospectus. See "Selling Stockholders". Of the
shares offered by this prospectus,  5,434,700 of the shares were acquired by the
selling stockholders,  and 2,173,880 of the shares are issuable upon exercise of
warrants to purchase  common  stock issued to the selling  stockholders,  in the
Company's recent unit financing.  In addition,  431,000 shares are issuable upon
exercise of warrants to purchase  common stock issued to the placement  agent in
connection with the financing.

     The selling  stockholders 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.

     On December 22, 1999,  Neurobiological  Technologies,  Inc. had  13,259,790
shares of common  stock issued and  outstanding.  Our common stock trades on the
Over the Counter (OTC) Bulletin  Board(R),  an electronic  stock listing service
provided by the Nasdaq Stock Market,  Inc. under the symbol "NTII".  On December
27, 1999,  the last bid price for the common stock on the OTC Bulletin Board was
$2.94 per share.

     Our  principal  offices  are  located at 1387  Marina Way South,  Richmond,
California, and our phone number is (510) 215-8000.

                                   ----------

     Beginning on page 3, we have listed several "Risk Factors" which you should
consider.  You should read the entire prospectus  carefully before you make your
investment decision.

                                   ----------

     Neither  the  Securities  and  Exchange  Commission  nor  state  regulatory
authorities  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 __, 1999
<PAGE>
                                TABLE OF CONTENTS

Forward-Looking Information................................................... 2
Risk Factors.................................................................. 3
Use of Proceeds............................................................... 9
Market Price/Dividends........................................................ 9
Management's Discussion and Analysis of Financial Condition...................10
Business......................................................................12
Directors and Executive Officers..............................................20
Executive Compensation........................................................21
Certain Relationships and Related Transactions................................23
Security Ownership of Certain Beneficial Owners and Management................24
Description of Common Stock...................................................25
Selling Stockholders..........................................................26
Plan of Distribution..........................................................29
Legal Matters.................................................................30
Experts.......................................................................30
Where You can Find More Information...........................................30

                                   ----------

     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 stockholders are offering to sell, and
seeking offers to buy, shares of Neurobiological Technologies, 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.

     In this prospectus, the "Company,"  "Neurobiological  Technologies,  Inc.,"
"NTI," "we," "us," and "our" refer to Neurobiological Technologies, Inc.

                           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"
beginning  on  page 3 and  the  documents  incorporated  by  reference  in  this
prospectus could affect such  forward-looking  statements and could cause actual
results to differ materially from the statements made in this prospectus.

                                        2
<PAGE>
                                  RISK FACTORS

     You should  consider  carefully the following risk factors,  along with the
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  performance to differ  materially  from those
expressed in any forward-looking statements we make in this prospectus.

NTI will  require  substantial  additional  funds to conduct  the  research  and
development and preclinical and clinical  testing of its potential  products and
to market any products that may be developed.

     Since 1987 when NTI was founded,  we have applied a substantial  portion of
our resources to our research and development programs. As part of the strategic
planning  process,  we have limited  expenditures  to only two drug  candidates,
Memantine and XERECEPT.

     We will need to obtain additional  financing to continue  operations beyond
June 30,  2000.  NTI  intends  to seek such  funding  through  public or private
financings, collaborative or other arrangements with corporate partners, or from
other sources.  There is a risk that we may not be able to obtain the additional
financing from any of these sources, or, if financing is available, that it will
not be  available  on  acceptable  terms.  In  addition,  we may  seek to  raise
additional funds whenever market  conditions  permit.  Raising  additional funds
through  issuing equity  securities  may result in  significant  dilution to our
existing stockholders.

     If we are not able to raise  adequate  funds,  we may be required to delay,
scale back,  or  terminate  our  clinical  trials,  or to obtain  funds  through
collaborative  partners or others.  Such  arrangements may require us to give up
additional rights to our technology, product candidates or products.

     Our  future  capital  requirement  will  depend  on a  number  of  factors,
including:

*    the  amount of  royalties  received  from Merz + Co.  GmbH & Co. for future
     sales of Memantine;
*    the progress of our clinical development programs;
*    the time and cost involved in obtaining regulatory approvals;
*    the cost of filing, prosecuting, defending, and enforcing patent claims and
     other intellectual property rights;
*    competing technological and market developments;
*    our ability to establish collaborative relationships;
*    the development of commercialization activities and arrangements; and
*    the purchase of additional capital equipment.

Our  continuing  losses  raised  a going  concern  issue  in the  report  of our
independent auditors.

     The  report of our  independent  auditors  with  respect  to our  financial
statements  included in our Annual Report on Form 10-KSB for the year ended June
30, 1999 includes a paragraph  indicating  that, as more fully  described in the
financial  statements,  our recurring losses during the development  stage and a
working  capital  deficit  and net  capital  deficiency  at June 30,  1999 raise
substantial doubt about our ability to continue as a going concern.

Because  all our  potential  products  are in clinical  development,  we may not
develop a candidate product that will receive required regulatory approval or be
successfully commercialized.

     We are still in the development stage and have no marketable products. As a
result,  we have no revenues from product  sales,  and most of our resources are
dedicated to the development of selected candidate pharmaceutical products.

     We are currently evaluating the results of our Phase IIB clinical trials of
Memantine for peripheral diabetic neuropathy. In addition, we recently announced
the  conclusion  of our  abbreviated  Phase II clinical  trial of  XERECEPT  for
peritumoral brain edema. The results of our preclinical  studies and early stage
clinical  trials are not  necessarily  indicative of those that will be obtained
upon further clinical testing in later stage clinical trials. Although the trial
of Memantine  completed in January 1998


                                        3
<PAGE>
indicated potential  effectiveness in treating  peripheral diabetic  neuropathy,
the  recently  completed  Phase  IIB  clinical  trial may not be  successful  in
confirming  Memantine's efficacy for this indication.  Further,  even though the
results  of  abbreviated   XERECEPT   clinical   trials   confirmed   neurologic
improvements,  the data were not statistically significant and the status of any
further clinical development of XERECEPT for this indication is uncertain.

Our  potential  products  are  subject to the risks of failure  inherent  in the
development of products based on new technologies.

     Our potential  products are subject to the risks of failure inherent in the
development  of products  based on new  technologies.  These  risks  include the
possibility that the potential products may:

*    be found to be unsafe, ineffective or toxic;
*    fail to receive necessary regulatory clearances;
*    if approved,  be difficult to manufacture on a large scale or  uneconomical
     to market;
*    be precluded from marketing by NTI due to the  proprietary  rights of third
     parties; and
*    not be successful  because third parties  market or may market  superior or
     equivalent products.

     Our  development  activities  may not  result  in any  commercially  viable
products.  NTI does not expect to be able to  commercialize  any  products for a
number of years, if at all.

We have  relied  and will  continue  to rely  heavily  on others  for  research,
development, manufacture and commercialization of our potential products.

     We have entered into various  contractual  arrangements  (many of which are
non-exclusive) with consultants,  academic collaborators,  licensors,  licensees
and others,  and we are dependent  upon the level of commitment  and  subsequent
success of these outside parties in performing their  responsibilities.  Certain
of these agreements place significant responsibility for preclinical testing and
human  clinical  trials  and  for  preparing  and  submitting   submissions  for
regulatory  approval for  potential  products on the  collaborator,  licensor or
contractor.  If the collaborator,  licensor or contractor fails to perform,  our
business, financial conditions and results may be adversely affected.

     We have also relied on  scientific,  mechanical,  clinical,  commercial and
other data supplied and  disclosed by others in entering into these  agreements.
We have relied on this data in support of applications for human clinical trials
for our  potential  products.  Although  we have no reason to believe  that this
information  contains errors or omissions of fact, it is possible that there are
errors or  omissions  of fact that would  change  materially  to our view of the
future  likelihood  of FDA approval or commercial  viability of these  potential
products.

     A number of our  agreements  and licenses with third parties  require us to
pay  royalties and make other  payments to such parties.  Failure by NTI to make
such  payments  could cause us to lose rights to  technology or data under these
agreements.

     With respect to Memantine, NTI is dependent on Merz for:

*    the  manufacturing and supply of drug for any future human clinical trials;
     and
*    the successful  commercialization  of the product to treat neuropathic pain
     and AIDS-related dementia.

The only  revenues  that we will  receive in the future for  Memantine  are
royalties  received  on  product  sales  by Merz  or its  marketing  partner  or
partners.  Any  failure by Merz or its  partners to  successfully  commercialize
Memantine  after its  development  will have a  material  adverse  effect on our
business, financial condition and results of operations.

The FDA and state and local  agencies,  and comparable  agencies and entities in
foreign  countries  impose  substantial  requirements on the  manufacturing  and
marketing of human  therapeutics  through  lengthy and detailed  laboratory  and
clinical  testing  procedures,  sampling  activities  and other  costly and time
consuming procedures.

     All  of  our  products   will   require   regulatory   approval   prior  to
commercialization in any country. In particular,  human therapeutic products are
subject to rigorous  preclinical and clinical testing and other FDA requirements
in the United  States  and  similar  health  authorities  in foreign  countries.
Various federal and, in some cases,  state statutes and regulations  also govern
or  influence  the


                                        4
<PAGE>
manufacturing,  safety, labeling,  storage,  recordkeeping,  clinical trials and
marketing  of  such   products,   including  the  use,   manufacture,   storage,
recordkeeping,  disposal of hazardous materials and certain waste products.  The
process  of  obtaining  these  approvals  and  the  subsequent  compliance  with
appropriate  federal,  state, and foreign  statutes and regulations  require the
expenditure of substantial  resources.  We cannot yet accurately predict when we
might be able to first submit an application for approval of any products to the
FDA or other regulatory review agency.

     In order to clinically test,  produce,  and market products for therapeutic
use, a company  must  comply  with  mandatory  procedures  and safety  standards
established by the FDA and comparable agencies in foreign countries.

     A company generally must conduct  preclinical testing on laboratory animals
of new  pharmaceutical  products  prior  to  commencement  of  clinical  studies
involving  humans.  These studies evaluate the potential  efficacy and safety of
the product. The company then submits the results of these studies to the FDA as
part of an  investigational  new drug  application  or IND,  which  must  become
effective before beginning clinical testing in humans.

     Typically,  human clinical  evaluation involves a time-consuming and costly
three-phase process:

*    In Phase I, a  company  conducts  clinical  trials  with a small  number of
     subjects to determine a drug's early safety profile and its pharmacokinetic
     pattern.
*    In Phase II, a company  conducts  clinical  trials  with groups of patients
     afflicted  with a  specific  disease  in  order  to  determine  preliminary
     effectiveness, optimal dosages and further evidence of safety.
*    In Phase III, a company  conducts  large-scale,  multi-center,  comparative
     trials with patients  afflicted  with a target  disease in order to provide
     enough data to demonstrate the effectiveness and safety required by the FDA
     prior to commercialization.

     The FDA closely  monitors the  progress of each phase of clinical  testing.
The FDA may,  at its  discretion,  re-evaluate,  alter,  suspend,  or  terminate
testing based upon the data  accumulated to that point and the FDA's  assessment
of the risk/benefit ratio to patients.

     The results of the  preclinical  and clinical  testing are submitted to the
FDA  in the  form  of a new  drug  application  or NDA  for  approval  prior  to
commercialization.  In  responding  to an  NDA,  the  FDA  may  grant  marketing
approval,  request additional information,  or deny the application.  Failure to
receive approval for any of our potential products would have a material adverse
effect on NTI. Among the  requirements  for product  approval is the requirement
that each domestic manufacturer of the product conform to the FDA's current Good
Manufacturing  Practice  regulations,  which  must  be  followed  at all  times.
Compliance with the cGMP  regulations  requires that  manufacturers  continue to
expend time,  money and effort in the area of production and quality  control to
ensure full technical compliance.

     Once the sale of a product is approved,  FDA regulations continue to govern
the manufacturing process and marketing activities. A post-marketing testing and
surveillance  program may be required to continuously  monitor a product's usage
and effects in  patients.  Product  approvals  may be  suspended or withdrawn if
compliance with regulatory standards is not maintained.

     Foreign  regulatory  approval of a product  must also be obtained  prior to
marketing the product  internationally.  Foreign  approval  procedures vary from
country  to  country.  The time  required  for  approval  may  delay or  prevent
marketing  in  certain  countries.  In  certain  instances,  the  company or its
collaborative  partners may seek  approval to market and sell  certain  products
outside of the United States before  submitting an application for United States
approval to the FDA. The clinical testing  requirements and the time required to
obtain  foreign  regulatory  approvals  may differ  from that  required  for FDA
approval.

     Fulfillment of regulatory  requirements  for marketing  human  therapeutics
typically  takes  many  years  and  varies  substantially  based  on  the  type,
complexity,  and novelty of the drug for which  approval  is sought.  Government
regulation may:

*    delay for a considerable period of time or prevent marketing of any product
     that we may develop; and/or


                                        5
<PAGE>

*    impose costly procedures upon our activities.

Either of these effects of government regulation may provide an advantage to our
competitors.

     There can be no  assurance  that FDA or other  regulatory  approval for any
products developed by NTI will be granted on a timely basis or at all. Any delay
in obtaining,  or failure to obtain,  required  approvals would adversely affect
the marketing of our proposed  products and our ability to earn product revenues
or royalties.

     In addition, success in preclinical or early stage clinical trials does not
assure success in later stage clinical  trials.  As with any regulated  product,
additional government regulations may be instituted which could delay regulatory
approval of our potential products. Additional government regulations that might
result from future legislation or administrative action cannot be predicted.

Our success  will  depend,  in large  part,  on our ability to obtain or license
patents,   protect  trade  secrets  and  operate  without  infringing  upon  the
proprietary rights of others.

     The patent position of  biotechnology  firms generally is highly  uncertain
because:

*    patents  involve  complex legal and factual  issues that have recently been
     the subject of much litigation;
*    no  consistent  policy  has  emerged  from the  United  States  Patent  and
     Trademark  Office  regarding the breadth of claims allowed or the degree of
     protection afforded under biotechnology patents; and
*    others may  independently  develop similar  products,  duplicate any of our
     potential  products,  or design around the claims of any potential patented
     products of NTI.

     In addition,  because of the time delay in patent  approval and the secrecy
afforded   United  States  patent   applications,   we  do  not  know  if  other
applications, that might have priority over our applications, have been filed.

     As a result of all of these factors,  there can be no assurance that patent
applications  relating to our  potential  products or  processes  will result in
patents  being  issued,  or that  patents,  if issued,  will provide  protection
against competitors who successfully challenge our patents,  obtain patents than
may have an adverse  effect on our  ability to conduct  business,  or be able to
circumvent our patent position.

     A number of  pharmaceutical  and  biotechnology  companies and research and
academic institutions have developed technologies,  filed patent applications or
received  patents on various  technologies  that may be related to our business.
Some of these  technologies,  applications or patents may conflict with NTI's or
any of our licensors'  technologies or patent applications.  Such conflict could
limit  the  scope of the  patents,  if any,  that we may be able to obtain or to
which we have a license or result in the denial of our  patent  applications  or
the patent applications for which we have licenses. In addition, if patents that
cover our activities have been or are issued to other companies, there can be no
assurance  that we would  be able to  obtain  licenses  to  these  patents  at a
reasonable cost, or be able to develop alternative technology.

Competition in pharmaceutical products and drug delivery systems is intense.

     Competition in the biopharmaceutical industry is intense and is expected to
increase. The development and sale of drugs for the treatment of the therapeutic
targets we pursue is highly  competitive.  There are therapies under development
for each of these therapeutic  targets. We may not develop products that will be
as efficacious or as cost-effective as currently-marketed  products.  Because we
have non-exclusive  licenses to patent rights covering certain uses of XERECEPT,
others may develop,  manufacture  and market  products  that could  compete with
those we develop.

     We  will  face  intense  competition  from  pharmaceutical,  chemical,  and
biotechnology  companies  both in the United States and abroad in our attempt to
discover, develop and market therapeutic drugs. Companies that complete clinical
trials,  obtain required  regulatory  approvals and commence commercial sales of
their products before their  competitors  may achieve a significant  competitive
advantage.  In addition,  we will face competition  from  universities and other
nonprofit research institutions, which now conduct significant level of research
in  biotechnology  and medicine and are  increasingly  active in seeking  patent
protection and licensing revenues for their research.


                                        6
<PAGE>


     We believe  that our ability to compete  successfully  will  depend,  among
other factors, on our ability to:

*    obtain funding;
*    create and maintain scientifically advanced technology;
*    develop proprietary products that can be protected by patents;
*    attract and retain scientific personnel;
*    obtain patent or other protection for its products;
*    obtain required regulatory approvals; and
*    manufacture and successfully  market products either alone or through other
     parties.

     Most of our competitors have substantially greater financial, marketing and
human resources,  and accordingly we will need to continue to attract and retain
qualified scientific personnel, finance pre-clinical and clinical trials, obtain
requisite regulatory approvals and commercialize our products.

Because  we do not have our own  manufacturing  facilities  we face  risks  from
outsourcing.

     We have established  arrangements with our corporate  collaborator,  Merz +
Co. GmbH & Co., and with contract manufacturers to supply potential products for
preclinical and clinical trials. We intend to establish similar arrangements for
the  manufacture,  packaging,  labeling and distribution of our products if they
are approved for marketing.

     We face certain risks by outsourcing manufacturing, including:

*    the delay of our preclinical and human clinical  testing if our contractors
     are  unable  to  supply   sufficient   quantities  of  product   candidates
     manufactured in accordance with cGMP on acceptable terms;
*    the delay of market  introduction  and subsequent sales of such products if
     we encounter difficulties in establishing  relationships with manufacturers
     to produce, package and distribute our products; and
*    adverse  effects  on  FDA  pre-market  approvals  of  the  products  of our
     collaborators  and  contract  manufacturers  if they do not  adhere to cGMP
     regulations.

     Therefore,  our dependence on third parties for the manufacture of products
may adversely  affect our results of  operations  and our ability to develop and
deliver products on a timely and competitive basis.

Clinical  trials or marketing of any of our potential  products may expose us to
liability  claims  from the use of such  products  which our  insurance  may not
cover.

     We  have  a  limited  amount  of  product  liability   insurance  to  cover
liabilities  arising  from  clinical  trials.  It is  possible  that our current
insurance may not be adequate to cover any liabilities arising from our clinical
trials.

         Our current product liability insurance does not cover commercial sales
of products. We can not be sure that we will be able to obtain product liability
insurance  covering  commercial  sales or, if such  insurance is obtained,  that
sufficient coverage can be acquired at a reasonable cost. An inability to obtain
insurance at acceptable  cost or otherwise  protect  against  potential  product
liability claims could prevent or inhibit  commercialization  of any products we
develop.   Further  reductions  in  our  staff  might  significantly  delay  the
achievement of planned development objectives.

     Each person currently employed by NTI serves an essential function.  During
fiscal year 1998, we reduced our workforce from 22 to 13 persons,  during fiscal
year 1999 we reduced our workforce from 13 to 11 persons, and during the quarter
ending  September  30,  1999,  we further  reduced our  workforce  from 11 to 10
persons.  Any  further  reduction  in force  could  impair our ability to manage
ongoing  clinical  trials  and  may  have  a  material  adverse  effect  on  our
operations.

If previously  unregistered shares of our common stock are sold into the market,
it could cause the price of our common stock to drop.

     Prior to this offering,  we had  approximately  7,825,090  shares of common
stock  outstanding.  This prospectus  covers an additional  8,039,580  shares of
common stock.  Consequently,  the number of shares  freely  tradable in the open
market  will  increase  significantly.  If  holders of these  shares  sell large
numbers of their shares in the open market, the
                                        7
<PAGE>
market price of the common stock could fall sharply. In addition, the perception
that such sales  could occur may cause the market  price of our common  stock to
remain relatively low indefinitely.

The market  price of the shares of our common  stock has been,  and is likely to
continue to be, highly volatile.

     The average daily trading volume of our common stock during fiscal 1999 has
been low compared to that of other biopharmaceutical companies. Our common stock
was delisted  from The Nasdaq Stock Market in February 1998 because we failed to
meet the  financial  conditions  necessary to remain  listed.  The delisting has
adversely affected, and is expected to continue to adversely affect, the trading
volume and price volatility of our stock.

     Other factors that may cause volatility in our stock price include:

*    the  results  of  preclinical  studies  and  clinical  trials by NTI or our
     competitors;
*    other  evidence  of  the  safety  or  efficacy  of  products  of NTI or our
     competitors;
*    announcements of technological  innovations or new therapeutic  products by
     NTI or our competitors;
*    developments  in  patent  or  other  proprietary   rights  of  NTI  or  our
     competitors, including litigation;
*    fluctuations in our operating results;
*    government regulation and health care legislation; and
*    market conditions for life sciences' stocks in general.

                                        8
<PAGE>
                                 USE OF PROCEEDS

     We will not  receive  any of the  proceeds  from the sale of the  shares of
common stock by the selling stockholders.  If the warrants underlying certain of
the shares offered under this  prospectus  are exercised by paying cash,  rather
than  pursuant  to  their  net  exercise  provisions,  we  could  receive  up to
approximately $5.3 million in proceeds. We intend to use any proceeds we receive
from the exercise of the warrants for general corporate purposes.

                   MARKET PRICE OF NTI COMMON STOCK; DIVIDENDS

     Since  February  1998,  the  Company's  common stock has been quoted on the
Over-the-Counter  ("OTC")  Bulletin Board,  an electronic  stock listing service
provided by The Nasdaq Stock Market, Inc., under the symbol NTII.

     As of December 22, 1999, there were  approximately 282 holders of record of
the Company's common stock and 13,259,790 shares of common stock outstanding.

     The price range of the  Company's  common  stock during the past two fiscal
years is shown below.  Except as otherwise noted, high and low prices given here
refer to the high and low bid quoted on the OTC Bulletin Board. These quotations
reflect  inter-dealer prices,  without retail mark-up,  mark-down or commission,
and may not represent actual transactions.

        Fiscal 1998                                 High            Low
        -----------                                 ----            ---
        First Quarter*.......................       $3.63          $1.56
        Second Quarter*......................       $3.56          $0.44
        Third Quarter........................       $1.28          $0.47
        Fourth Quarter.......................       $1.50          $0.69

        Fiscal 1999                                 High            Low
        -----------                                 ----            ---
        First Quarter........................       $1.06          $0.38
        Second Quarter.......................       $0.69          $0.41
        Third Quarter........................       $0.66          $0.47
        Fourth Quarter.......................       $1.44          $0.50

        Fiscal 2000                                 High            Low
        -----------                                 ----            ---
        First Quarter........................       $1.53          $0.84
        Second Quarter (through December 20,
        1999)................................       $3.75          $0.84

- ----------
*    Prices shown during these  quarters  reflect the high and low closing price
     of the Company's Common Stock on the Nasdaq SmallCap Market.

     No  dividends  have  been paid on the  common  stock  since  the  Company's
inception,  and the Company  does not  anticipate  paying any  dividends  in the
foreseeable future.

                                        9
<PAGE>
                MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                       CONDITION AND RESULTS OF OPERATIONS

     Statements  in this  "Management's  Discussion  and  Analysis of  Financial
Condition and Results of Operation,"  and elsewhere in this  prospectus that are
not  historical  are  forward-looking  statements and are subject to a number of
risks and  uncertainties  which could cause actual results to differ  materially
from those discussed in the forward-looking statements. Factors that might cause
such a difference include,  but are not limited to, those set forth under "Risks
Factors".

     Since 1987 when NTI was founded,  the Company has applied a majority of its
resources to its research and development programs. The Company is a development
stage company, has not received any revenue from the sale of products,  and does
not anticipate  receiving  revenue from the sale of products in the near future.
The  Company  has  incurred  losses  since its  inception  and  expects to incur
substantial,   increasing  losses  due  to  ongoing  and  planned  research  and
development efforts.

RESULTS OF OPERATIONS

Three Months Ended September 30, 1999 and September 30, 1998

     The Company's research and development  expenses increased to approximately
$536,000  in the three  months  ended  September  30,  1999  from  approximately
$441,000 in the same period of the prior year. The increase was primarily due to
the initiation of a Phase IIB human  clinical  trial to evaluate  Memantine as a
treatment  for  peripheral  diabetic  neuropathy.   General  and  administrative
expenses increased to approximately $247,000 in the three months ended September
30,  1999 from  $222,000 in the three  months  ended  September  30,  1998.  The
increase was primarily due to increased  expenditures in activities  relating to
seeking  financing  and corporate  partnerships.  Interest  income  decreased to
$2,000 in the three  months  ended  September  30, 1999 from $23,000 in the same
period of the prior year primarily due to lower average cash balances.

Fiscal Years Ended June 30, 1999 and June 30, 1998

     The Company's research and development  expenses increased to $2,780,000 in
fiscal 1999 from  $2,026,000  in fiscal  1998.  The  increase in fiscal 1999 was
primarily due to the  initiation of a Phase IIB human clinical trial to evaluate
Memantine  as a  treatment  for  peripheral  diabetic  neuropathy.  General  and
administrative  expenses  decreased to $1,058,000 in fiscal 1999 from $2,347,000
in fiscal 1998. The decrease in fiscal 1999 was primarily due to lower salaries,
facility costs and professional  fees. In fiscal 1999, the Company's revenues of
$99,544 were due to a Small Business  Innovative Research grant awarded from the
NIH.  Interest income decreased from $99,000 in fiscal 1998 to $47,000 in fiscal
1999, primarily due to changes in average cash balances.

     The Company expects to incur substantial  ongoing costs primarily for Phase
II clinical  trials for its  development  programs  and  related  administrative
support.  The Company expects that its expenditures will continue to increase as
its products move through  Phase II and, if the Phase II trials are  successful,
Phase III clinical trials.

LIQUIDITY AND CAPITAL RESOURCES

     The Company  expects its cash  requirements  to increase  significantly  in
future  periods.  Future cash  requirements  will  depend on  numerous  factors,
including:  the  in-licensing  of  potential  drug  candidates;  the progress on
development  programs;  the  time  and  costs  involved  in  seeking  to  obtain
regulatory  approval;  the  ability of the  Company to  establish  collaborative
arrangements;  product  commercialization  activities;  and the  acquisition  of
manufacturing or laboratory facilities.

     From inception through November 30, 1999, the Company has raised a total of
$35.5 million in net proceeds from the sale of common and preferred stock.

     The  Company  believes  that its  available  cash and cash  equivalents  of
approximately  $2.6  million as of November  30,  1999 are  adequate to fund its
operations through the fiscal year ending June 30, 2000. The

                                       10
<PAGE>
Company will need to raise  substantial  additional  capital to fund  operations
beyond the fiscal year ending June 30, 2000. The Company intends to seek funding
through public or private  financings,  collaborative or other arrangements with
corporate partners,  or from other sources.  However,  there can be no assurance
that funding will be available on favorable terms from any of these sources,  if
at all. If such funding is  unavailable,  the Company will be required to delay,
scale back, or eliminate one or more of its research,  discovery, or development
projects,   including  clinical  trials,  and  to  make  further  reductions  in
workforce.  The  Company  will also need to  consider  obtaining  funds  through
entering  into  arrangements  with  collaborative  partners or others  which may
require the Company to relinquish rights to certain of its technologies, product
candidates  or products that the Company  would not  otherwise  relinquish,  and
other  restructuring  alternatives,  including the license or sale of certain of
its assets and technology, discontinuing operations or liquidation.

IMPACT OF YEAR 2000 ISSUE

     Year 2000 or Y2K  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.

     The Company has  completed  an  assessment  of its  computer  systems.  The
Company utilizes only  commercially  available  software  applications and these
have been upgraded to versions that the vendors  advertise to be Y2K  compliant.
The Company has  contacted  selected  vendors  with regards to their Y2K status.
Based upon vendors' representations to date, the Company believes that they will
be able to supply NTI with its needs in the year 2000.

     NTI believes its computer  systems will  function  properly  with regard to
Y2K. If any problems were to arise, the worst-case scenario for Y2K problems for
NTI would be to cease using the  affected  systems for an  indefinite  period of
time while the Company  attempts to correct the problems.  In the event that Y2K
issues  are  not  resolved  in a  timely  manner,  the  Company  will  implement
alternative  methods to carry out these tasks and  services  until the  affected
systems  are  upgraded.  However,  we do not know if this  would have a material
effect on NTI's operations, liquidity or financial condition.

     NTI has made forward-looking statements regarding its Y2K compliance. These
statements include the expected  completion schedule for system upgrades and the
costs to the Company of such  upgrades.  There are many factors that could cause
actual  events  or  results  to  differ  materially  from  those  stated  in the
forward-looking statements. These factors include difficulties in identifying or
upgrading  software or hardware systems that are not currently Y2K compliant and
in  coordinating  these efforts  through NTI's  internal  staff and  specialized
contractors.  The Company  expects to be able to complete these upgrades  before
any Y2K problem  could  arise.  Unanticipated  problems  such as material  costs
caused by undetected  errors or defects in the technology  used in the Company's
internal systems could delay the Company's completion of the upgrades.

                                       11
<PAGE>
                                    BUSINESS

OVERVIEW

     NTI is an  emerging  drug  development  company  focused  on  the  clinical
development  and regulatory  approval of neuroscience  drugs.  NTI is developing
neuroprotective  and  neuromodulatory  agents to treat progressive  neurological
impairments  characteristic  of  various  nervous  system  disorders,  including
diabetic neuropathy,  brain cancer and AIDS dementia syndrome. NTI was organized
as a California  corporation in 1987, and it was  reincorporated  in Delaware in
1994.

     Our strategy is to in-license and develop  early-stage drug candidates that
target  major  medical  needs  and  that  may  be  rapidly  commercialized.  Our
experienced  management  team oversees the human  clinical  trials  necessary to
establish   preliminary   evidence  of  efficacy  and  seeks  partnerships  with
pharmaceutical and biotechnology companies to complete development of and market
its product candidates.

     NTI has recently  completed Phase II human clinical testing for two product
candidates.  One of these, the orally-available  compound Memantine,  appears to
restore the function of impaired neurons by modulating the  N-methyl-D-aspartate
("NMDA") receptor,  integral to the membranes of such cells. Such restoration of
function  inhibits  injured  or  damaged  neurons  from  firing  abnormally,   a
pathological  process  associated with many neurological  conditions,  including
dementia,  Alzheimer's disease, neuropathic pain (persistent pain resulting from
abnormal signals to the brain) and AIDS dementia.  Memantine may be an effective
and  marketable  treatment for such  conditions due to its favorable side effect
profile  and  oral  dosage   formulation.   There  are   currently  no  approved
neuroprotective  treatments for any of the pathologies  associated with abnormal
NMDA-receptor activity.

     Memantine has been marketed by Merz + Co. GmbH & Co. of Frankfurt,  Germany
in Germany since 1989 with the labeling  "dementia  syndrome." In April 1998, we
entered into a strategic research and marketing  cooperation agreement with Merz
and a revenue sharing  partnership with Children's Medical Center Corporation of
Boston,  Massachusetts,  to further the  development  and  commercialization  of
Memantine.  Pursuant to this agreement,  Children's  Medical Center  Corporation
terminated our existing license for  AIDS-related  dementia and neuropathic pain
and  granted  exclusive  rights to Merz.  In  exchange,  we received an up-front
payment of $2.1 million from Merz. NTI and Children's Medical Center Corporation
will share in future  revenue from sales of  Memantine by Merz or its  marketing
partners.  NTI and Merz are  currently  assisting  each other to  advance  their
respective clinical development programs by sharing their scientific information
and  clinical  trial  data.  They are also  seeking a  marketing  agreement  for
Memantine with a large pharmaceutical company.

     In October 1999, we announced that our alliance partner,  Merz + Co. GmbH &
Co.,  concluded two major Phase III trials in vascular  dementia with  Memantine
and that the  initial  results  look  promising.  A total of 900  patients  were
enrolled  in  multiple  sites in the UK and  France.  The trial was  designed to
investigate  improvements  in  cognition,  a major  focus  of drug  therapy  for
dementia.  Merz  plans to  disclose  data from the  trials at the  International
Stockholm/Springfield Symposium on Advances in Alzheimer's Therapy Conference to
be held in Stockholm in April 2000.  Merz's Phase III program for Memantine as a
treatment  for  Alzheimer's  disease  in the  United  States is  continuing.  We
recently  announced  the  completion  of  enrollment  of a 421 patient Phase IIB
clinical trial to evaluate the ability of Memantine to relieve  chronic pain due
to  diabetic  neuropathy  or nerve  damage,  particularly  nocturnal  pain  that
frequently interferes with sleep. Quintiles CNS Therapeutics, a leading contract
research  organization  with  experience in neurology,  is jointly  managing the
trial for two product candidates with us. We are currently analyzing the results
of this trial, and we expect to announce the results in January 2000.

     Memantine is also currently being evaluated as a treatment for AIDS-related
dementia in a Phase II human clinical trial funded by the National Institutes of
Health or NIH.  The trial is being  conducted by AIDS  Clinical  Trials Group or
ACTG,  and is  designed to evaluate  Memantine's  ability to reduce  symptoms of
dementia  and  neuropathic  pain in  patients  with  AIDS.  The  ACTG  has  also
implemented a protocol permitting open-label dosing for up to 60 weeks following
the double blinded phase of the trial.  This open-label  phase will provide data
on the long-term safety of Memantine.  NTI is supplying  Memantine for the trial
and will have the right to use the resulting data for the commercial development
of Memantine for that indication.

                                       12
<PAGE>
     We are also developing XERECEPT,  our synthetic  preparation of the natural
human  peptide  Corticotropin-Releasing  Factor or CRF, as a treatment for brain
swelling due to brain tumors (peritumoral brain edema). We evaluated XERECEPT, a
synthetic  preparation  of the natural  human  peptide,  Corticotropin-Releasing
Factor  in  a  randomized,  double-blind,  positive-controlled  Phase  II  human
clinical trial for  peritumoral  brain edema  (swelling of the brain caused by a
tumor).  We  closed  enrollment  for this  trial at 33  patients  (one  third of
projected  enrollment) in order to provide expedited but abbreviated analysis of
the data. All responders, as defined by the trial protocol, were in the XERECEPT
treatment groups.  Rigorous  statistical analysis of the data was not meaningful
due to the small  numbers  enrolled.  The  clinical  study should be regarded as
confirmatory but not definitive with regard to neurologic  improvements that may
be attained with XERECEPT in symptomatic brain tumor patients.

     During fiscal 1999, we were awarded a Small  Business  Innovative  Research
(SBIR) grant of approximately  $100,000 from the NIH for clinical development of
XERECEPT for peritumoral  brain edema. In April 1998,  XERECEPT  received orphan
drug designation for this indication.  Orphan drug designation  provides us with
seven years  market  exclusivity  and makes us  eligible to receive  Orphan Drug
Grants to fund clinical research.

     Previously we sought to out-license Dynorphin A, a human peptide previously
tested as an  analgesic  agent.  During the fourth  quarter of fiscal  1999,  we
abandoned our rights to Dynorphin A.

PRODUCT CANDIDATES

<TABLE>
<CAPTION>
        Product/Indication              Development Status                    Primary Benefit Sought
        ------------------              ------------------                    ----------------------
<S>                               <C>                                    <C>
MEMANTINE

Diabetic Neuropathic              Pain Phase IIA trial completed.        Analgesia

                                  Phase IIB trial initiated November     Analgesia
                                  1998. Patient enrollment completed
                                  September 1999. Data expected in
                                  January 2000.

AIDS-related Dementia and         Phase II trial in progress.            Improvement in neurological function
Neuropathic Pain                                                         and peripheral neuropathy.

                                  Patient enrollment completed in
                                  December 1999.

Moderate to Severe Dementia and   Phase III trial initiated in 1998.     Functional and/or cognitive
Alzheimer's Disease*                                                     improvement.


*Merz + Co. GmbH & Co. trial in the United States.

XERECEPT(TM) (CORTICOTROPIN-RELEASING FACTOR)

Peritumoral Brain Edema           Multiple Phase I/II trials completed.  Improvement in neurological function.

                                  Phase II trial enrollment closed at    Stabilization or improvement of
                                  33 patients.  Results confirmatory     neurological function.
                                  but not definitive.
</TABLE>

                                       13
<PAGE>
SCIENTIFIC BACKGROUND

     Our  therapeutic  focus  is  neuroprotection   and   neuromodulation:   the
prevention and treatment of  neurological  impairment by preserving or restoring
neurological function of damaged neurons. We are developing  neuroprotective and
neuromodulatory  agents which may slow or reverse the  progressive  neurological
impairment associated with multiple nervous system disorders, including diabetic
neuropathy, brain cancer, and AIDS-dementia complex.

     Because neuronal injury contributes  significantly to functional impairment
in many  nervous  system  disorders,  scientists  believe  that  neuroprotective
compounds   are   potentially   powerful   and  flexible   therapeutic   agents.
Neuroprotective  compounds are currently  being tested in human clinical  trials
conducted  by  multiple  third  parties  for  their  ability  to  slow  or  halt
progressive functional neurologic impairment.

     Mechanisms  common  to  progressive  neuronal  injury  in  various  medical
conditions are thought to result in multiple neurologic symptoms such as chronic
pain,  motor  difficulties,   memory  loss  and  other  cognitive  deficits.  By
modulating such mechanisms,  neuroprotective  agents may prevent or restore loss
of  neurological  function.  Our current  scientific  focus is on two mechanisms
contributing to progressive neuronal injury:  excitotoxicity and edema. There is
evidence  that  Memantine  prevents  or  reduces  excitotoxicity,  a cascade  of
neuronal cell injury and death associated with the release of abnormal levels of
excitatory  neurotransmitters.   XERECEPT  has  the  potential  to  prevent  the
progressive  neuronal injury resulting directly from cerebral edema (swelling of
the brain),  damage that more frequently results in clinical impairment than the
damage resulting from the presence of a tumor.

PRODUCTS IN DEVELOPMENT

Memantine

     Memantine  is an  orally-available  neuromodulatory  agent  that  has  been
marketed in Germany since 1989 with the labeling "dementia  syndrome." It is one
of a class  of  agents  referred  to as  NMDA-receptor  antagonists.  Scientific
research has indicated that modulating the NMDA receptor may protect against the
neuronal  injury  and  death  associated  with a number of  medical  conditions.
Accumulating  evidence from various studies  indicates that  overstimulation  of
NMDA receptors  contributes to the injury and death of neurons. This occurs in a
variety  of  chronic  neurodegenerative  diseases  including  neuropathic  pain,
dementia,  Alzheimer's disease, and Huntington's disease. There are currently no
approved  neuroprotective  treatments for any of the pathologies associated with
NMDA-receptor overstimulation.

     NTI is currently  developing  Memantine both as a treatment for neuropathic
pain as well as for neurological  deficits  associated with AIDS.  Estimates are
that  approximately   1,000,000  patients  in  the  United  States  suffer  from
intractable neuropathic pain. In addition, as many as one-third of AIDS patients
eventually  develop  neurological  problems,  such  as  loss  of  cognition  and
coordination.

     Nerve  cells in the  brain  communicate  by  sending  signals  to excite or
inhibit  each  other.   These  signals  are  initiated  by  compounds  known  as
neurotransmitters.  The principal excitatory neurotransmitter,  glutamate, binds
to the NMDA receptor embedded in the cell membrane of the neuron. When glutamate
binds to the  receptor,  a channel in the neuron  opens  which  enables  charged
calcium  molecules  to flow  freely  into the  neuron.  Normally,  the influx of
calcium  triggers  chemical  reactions  that  cause the  neuron  to  change  its
electrical charge and fire a message to neighboring neurons. This basic function
of the NMDA receptor is essential for normal movement,  sensation,  memory,  and
cognition.  In certain medical conditions,  glutamate levels surrounding neurons
are elevated,  which results in overstimulation  of the NMDA receptor.  In these
situations,  excessive amounts of calcium enter the neuron, releasing internally
stored glutamate into the surrounding  area. This glutamate  further  stimulates
NMDA receptors on neighboring neurons, causing a cascade of neuronal cell injury
and/or death throughout the area, referred to as excitotoxicity.

     Neuroscientists have been developing ways to prevent the damaging influx of
excess calcium into neurons.  One approach is to prevent  glutamate from binding
to the  receptor.  This  can be  accomplished  by  using  either  a  competitive
NMDA-receptor  antagonist which prevents glutamate from binding to the receptor,
or a closed

                                       14
<PAGE>
NMDA-receptor  channel  blocker,  which  binds  to the  entrance  of the  closed
channel.  However,  if such  compounds  prevent the channel from opening for too
long, they may impede the normal functioning of the NMDA receptor,  causing side
effects including hallucinations, paranoia, delirium, and amnesia.

     Scientists  affiliated  with Children's  Hospital of Boston,  Massachusetts
working on  understanding  the function of the NMDA receptor found  Memantine to
modulate   the  NMDA   receptor's   calcium   ion   channel.   Memantine   binds
uncompetitively to the NMDA receptor and appears to interfere  relatively little
with  normal  functioning,  while  reducing  abnormal  signals  associated  with
excessive  calcium  influx.  Rather than  blocking  the NMDA  receptor  for long
periods of time,  Memantine appears to restore regulation of the channel to near
normal activity, while permitting routine neurotransmission.

     The profound  psychotic  side effects  associated  with other NMDA receptor
antagonists  previously evaluated by third parties in human clinical trials have
very  rarely  been  reported  with  Memantine.  Merz  has  carefully  documented
Memantine's  history of safe  clinical use in Germany over years of  post-launch
clinical experience and active  surveillance.  In a post-marketing  surveillance
study sponsored by Merz with 1,420 dementia  outpatients  treated for up to more
than one year,  Memantine was rated as having very good to good  tolerability in
93.8% of the cases at the end of the observation period.

Product Development Status

     The Neuropathic Pain of Diabetes

     Diabetes  mellitus  is a chronic  disorder  that  affects an  estimated  16
million  Americans.  One of its  most  common  complications  is  nerve  damage,
particularly  damage to  peripheral  nerves that send  sensory  signals from the
extremities to the central nervous system or CNS. This condition, referred to as
peripheral  diabetic  neuropathy or PDN, is a large,  unmet  medical need.  This
condition most frequently damages nerves in the feet, making walking or standing
painful and difficult.  We estimate that  approximately  800,000 patients in the
United States currently  receive  treatments for the symptoms of PDN,  including
severe,  chronic pain known as neuropathic  pain (persistent pain in the absence
of an obvious stimulus). As the neuropathy progresses, the sensation of pain may
become more intense,  encompass more areas, and become increasingly difficult to
treat with available therapeutic agents.

     Peripheral  nerve  damage  disrupts  pain  pathways in the nervous  system,
causing  nerves to send abnormal  signals that the brain  interprets as pain. In
effect,  neurons in the CNS are  bombarded  with  abnormal  signals  until their
ability   to   process   pain   signals   is   compromised.    This   leads   to
hyper-sensitization  of  neurons to pain  impulses  and  results in  progressive
neuronal injury in the CNS. Although the precise  mechanisms of these events are
not  completely  understood,  there  is  evidence  that  overactivation  of NMDA
receptors in the CNS plays an important role.

     Memantine has been shown to inhibit abnormal pain signals by modulating the
NMDA receptor in several animal models of neuropathic pain. Based on the results
of these  studies,  we sponsored and completed a 122-patient  placebo-controlled
Phase IIA human  clinical trial of Memantine in patients with  neuropathic  pain
due to diabetes or  post-herpetic  neuralgia (a  complication  of shingles).  No
treatment benefit was observed in patients with post-herpetic neuralgia.  Trends
indicating  efficacy of Memantine  were observed in patients with PDN,  however.
The strongest efficacy trend was the reduction of nocturnal pain associated with
PDN. Nocturnal pain is a major problem for these patients, frequently leading to
insomnia and other associated  health and  psychological  problems.  After eight
weeks of  treatment  in our  clinical  trial,  subjects  dosing  with  Memantine
reported a mean nocturnal pain rating of 31.2  millimeters (on a visual analogue
scale of 1-100 millimeters) compared to a mean of 44.4 millimeters for those who
received  placebo.  The  difference  between  these  means  indicates  that  the
Memantine-treated  subjects had 42% less  nocturnal pain than those treated with
placebo.  The results for the other  primary  variables of daytime pain and pain
relief,  although not  statistically  significant,  exhibited  consistent trends
representative of analgesic benefit with Memantine compared to placebo.

     Based on the results from our Phase IIA trial of Memantine in patients with
neuropathic  pain,  we  initiated a Phase IIB trial of  Memantine  in the second
quarter of fiscal  1999,  exclusively  in patients  with PDN.

                                       15
<PAGE>
This  randomized,   double-blind,   placebo-controlled   dose-ranging  trial  is
evaluating the ability of Memantine to relieve  chronic pain due to nerve damage
in patients with PDN (particularly nocturnal pain). The trial protocol specifies
that Memantine subjects will receive a 10 mg daily dose,  escalating by 10 mg at
weekly intervals to either 20 mg or 40 mg daily.  Quintiles CNS Therapeutics,  a
leading contract research organization with experience in neurology,  is jointly
managing the trial with the Company.  In September  1999,  we completed  patient
enrollment in this trial.  Enrollment  was closed at 421 patients.  We expect to
report results from this trial in January 2000.  Results will determine  whether
we will initiate a pivotal Phase III trial for this indication in  collaboration
with a corporate partner.

     AIDS: Dementia and Neuropathic Pain

     Recent  research  indicates  that  infection of the CNS with HIV, the virus
associated with AIDS, also leads to neuronal  damage.  Such damage may result in
neurological   complications,   including  loss  of  cognition,   movement,  and
sensation,  referred  to as AIDS  dementia  complex.  Approximately  one-half of
children  and  one-third  of adults  with AIDS are  expected  to  develop  these
symptoms.  There  are  currently  no  therapies  specifically  directed  towards
HIV-associated  neuronal  damage.  Current AIDS therapies,  even if effective at
reducing  the  circulating  virus  level,  do  not  appear  to be  effective  at
eliminating AIDS-induced damage to the CNS.

     Besides  the  AIDS-related  cognitive   impairments,   many  AIDS  patients
experience  painful  peripheral  neuropathies  due to  overstimulation  of  NMDA
receptors.  This  often  occurs in the later  stages  of AIDS and  results  in a
burning  pain of the feet as well as pain from  anything  that touches the skin.
Walking in particular may become extremely  difficult.  Effective treatments are
still unavailable for this  incapacitating  condition and certain AIDS therapies
may aggravate this type of neuropathic pain.

     Memantine has been shown to reduce NMDA  receptor-mediated  neuronal damage
in both in vitro  (outside  the body)  experiments  and in vivo  animal  models.
Neuronal  dysfunction  due to HIV  infection  has been shown to be  mitigated by
antagonists of the NMDA receptor, including Memantine.

     In December  1996, we announced the initiation of a Phase II clinical trial
of Memantine as a treatment for AIDS-related dementia and neuropathic pain. This
study is funded by the NIH and is being conducted by the ACTG, a clinical trials
consortium  associated  with the Division of AIDS of the NIH. The trial protocol
submitted  under  our   Investigational  New  Drug  application  calls  for  the
enrollment of 140 AIDS patients  with  symptoms of dementia.  In December  1999,
enrollment was  completed.  The ACTG has also  implemented a protocol  extension
permitting  open-label  dosing for up to 60 weeks following the blinded phase of
the trial.  This open-label  phase will provide data on the long-term  safety of
Memantine.  We are supplying  Memantine for the trial and will have the right to
use the resulting  data to further the  commercial  development of Memantine for
that  indication.  If positive trial results are reported,  we intend to discuss
the additional  regulatory  requirements  for this indication  including  future
clinical trials with the Food and Drug Administration.

     Agreement with Merz and Additional Indications

     In  April  1998,  we  entered  into  a  strategic  research  and  marketing
cooperation  agreement  with Merz and a new  revenue  sharing  partnership  with
Children's  Medical Center  Corporation to further the clinical  development and
commercialization of Memantine.  Pursuant to this agreement,  Children's Medical
Center  Corporation  terminated  its  existing  license to NTI for  AIDS-related
dementia and neuropathic pain and granted exclusive rights to Merz. NTI and Merz
will share  scientific,  clinical and regulatory  information  about  Memantine,
particularly safety data, to facilitate regulatory review and marketing approval
by the FDA and foreign regulatory authorities.

     Pursuant to the agreement with Merz, NTI will share in future revenues from
sales of Memantine for treatment of moderate to severe  dementia and Alzheimer's
disease, indications which Merz is developing.  Severe dementia is characterized
by progressive  decline in motor and cognitive  skills  associated with multiple
central nervous system disorders,  chiefly neurodegenerative  conditions such as
Alzheimer's  disease.  According to the NIH,  approximately 4 million people are
affected by  Alzheimer's  disease in the U.S.  There are  currently  no approved
treatments indicating clinical benefits in patients with severe dementia.

                                       16
<PAGE>

     Merz has completed three Phase III clinical trial of Memantine for moderate
to severe  dementia in Europe and is  currently  conducting a Phase III trial in
the U.S. managed by Quintiles CNS Therapeutics.

     In the  March  1999  issue  of the  peer-review  International  Journal  of
Geriatric  Psychiatry,  positive  results were reported from the first Phase III
human  clinical  trial of  Memantine  sponsored  by Merz.  In this  double-blind
placebo-controlled  trial,  166 elderly,  care-dependent  and severely  demented
patients  were  randomized  to receive a 10 mg oral dose of Memantine or placebo
for 12 weeks.  All  patients  were  diagnosed  with primary  dementia:  49% with
Alzheimer's  disease and 51% with  vascular or  mixed-type  dementia.  Subjects'
motor performance and functional independence were assessed after 4 and 12 weeks
of treatment using two standard scales. The effect of Memantine, as evaluated on
both  scales,  resulted in  statistically  significant  improvement  compared to
placebo.  Functional  evaluations  performed  by  physicians  and nursing  staff
included  ability  to move,  wash,  bathe and dress,  as well as the  ability to
recognize  persons  and  participate  in group  activities.  Memantine  was well
tolerated and no significant side effects were reported.

     In October 1999, NTI announced that its alliance partner, Merz + Co. GmbH &
Co.,  concluded two major Phase III trials in vascular  dementia with  Memantine
and that the  initial  results  look  promising.  A total of 900  patients  were
enrolled  in  multiple  sites in the UK and  France.  The trial was  designed to
investigate  improvements  in  cognition,  a major  focus  of drug  therapy  for
dementia.  Merz  plans to  disclose  data from the  trials at the  International
Stockholm/Springfield Symposium on Advances in Alzheimer's Therapy Conference to
be held in Stockholm in April 2000.  Merz's Phase III program for Memantine as a
treatment for Alzheimer's disease in the United States is continuing.

XERECEPT(TM) (Human Corticotropin-Releasing Factor)

     XERECEPT(TM)   is  our   synthetic   preparation   of  the  human   peptide
Corticotropin-Releasing  Factor which we are developing as a treatment for brain
swelling  due to brain  tumors  (peritumoral  brain  edema).  There is  clinical
evidence  that  XERECEPT  may  be  demonstrated  to be a  safer  treatment  than
synthetic  corticosteroids,  which are  associated  with  serious  adverse  side
effects including muscle wasting, osteoporosis,  hyperglycemia, vision problems,
and psychosis.  Results from preclinical studies and pilot human clinical trials
previously  sponsored by the Company have demonstrated the compound's  potential
to reduce swelling in brain tissue and to be well-tolerated and apparently safe.
Thus,  XERECEPT has the potential to  significantly  improve the quality of life
for brain cancer patients with dysfunction due to brain swelling.  In the United
States,  approximately  30,000  patients  are  diagnosed  every  year with brain
tumors.  Patients  with  this  condition  are in need of a safe  alternative  to
corticosteroids,  which have serious adverse effects at the high,  chronic doses
required for  efficacy.  The FDA has approved  our  application  for orphan drug
designation  for  XERECEPT  to  treat  this  unmet  medical  need.  Orphan  drug
designation  provides  NTI with  seven  years  market  exclusivity  and makes us
eligible to receive  federal monies for clinical  research under the Orphan Drug
Grant Program.  During fiscal 1999, we were awarded a Small Business  Innovative
Research grant of approximately  $100,000 from the NIH for clinical  development
of XERECEPT for peritumoral brain edema.

     CRF is a  natural  neuroendocrine  peptide  hormone  found in  humans  both
centrally (within the brain) and peripherally  (outside the brain).  Researchers
discovered anti-edema affects of CRF through systemic  administration.  Research
by scientific  collaborators  of NTI has revealed  that  XERECEPT  significantly
reduces  edema or  swelling  of  damaged  tissue  in animal  models.  Edema is a
condition  characterized  by swelling  after  tissue  injury when fluid,  plasma
proteins,  and  white  blood  cells  flow  from  small  blood  vessels  into the
surrounding  tissues,  further contributing to the destruction of these tissues.
Preclinical  studies  sponsored by the Company have shown that XERECEPT  reduces
the flow of fluid  through blood  vessels at sites of traumatic  tissue  injury.
Specifically,  these studies have shown that XERECEPT injected systemically into
animals can reduce brain edema after injury,  brain edema associated with cancer
tumors, and swelling in muscle tissue following surgical trauma.

                                       17
<PAGE>
Product Development Status

     Peritumoral Brain Edema

     We have been  initially  evaluating  XERECEPT for the treatment of cerebral
edema caused by brain tumors.  In these patients,  the tumor promotes  increased
permeability  of the small blood  vessels in the brain  resulting  in the excess
flow of fluids  into the  brain,  swelling  of brain  tissue,  and a  consequent
impairment of  neurological  function.  Current  treatment of peritumoral  brain
edema, primarily corticosteroids, results in serious adverse side effects at the
high, chronic doses required for efficacy. Reactions can include muscle wasting,
immunosuppression,  osteoporosis, hyperglycemia, glaucoma, and other potentially
dose-limiting side effects.

     Although  endogenous CRF is involved in stimulating  the release of natural
corticosteroids,  studies  sponsored  by the  Company  have shown that  XERECEPT
exerts its anti-edema  action  independent of cortisol release when administered
systemically.

     Based on the pharmacologic profile of XERECEPT,  there is evidence that the
compound may be  efficacious  without the adverse side effects  associated  with
current  therapies.  XERECEPT has been safely  administered  to several  hundred
healthy volunteers and patients according to numerous studies published by third
parties.  In human clinical trials  sponsored by the Company,  XERECEPT was well
tolerated and appeared to be safe in more than 230 courses of treatment.

     Results  from pilot  human  clinical  trials  previously  sponsored  by NTI
demonstrated the potential of XERECEPT to reduce swelling of brain tissue and to
be  well-tolerated  and apparently safe. Based on these results,  we initiated a
Phase II human  clinical  trial in 1997 to evaluate  the efficacy of XERECEPT to
stabilize or improve  neurological  symptoms caused by peritumoral  brain edema.
Patients enrolled in this randomized,  double-blind,  positive-controlled  trial
must  have   neurological   symptoms   requiring   stable  dosing  of  synthetic
corticosteroids,  the current standard treatment.  We closed enrollment for this
trial at 33 patients  (one third of  projected  enrollment)  in order to provide
expedited but abbreviated  analysis of the data. All  responders,  as defined by
the trial protocol,  were in the XERECEPT treatment groups. Rigorous statistical
analysis of the data was not meaningful due to the small numbers  enrolled.  The
clinical study should be regarded as confirmatory but not definitive with regard
to neurologic  improvements  that may be attained  with XERECEPT in  symptomatic
brain tumor  patients.  We are currently  evaluating  whether to commit  further
resources to the clinical  development  of XERECEPT for this  indication  or for
other indications.

PATENTS AND PROPRIETARY TECHNOLOGY

Memantine

     In April 1998, in connection  with our agreement  with Merz,  our exclusive
license from  Children's  Medical Center  Corporation to a series of patents and
patent  applications  relating to certain  non-ophthalmic  uses of Memantine was
terminated.

XERECEPT(TM)

     We hold  non-exclusive  worldwide  licenses  to four  issued  U.S.  patents
covering the composition of matter of XERECEPT and various  analogues,  together
with certain  foreign  patents and patent  applications.  We also have exclusive
rights to four  issued  patents  and one  patent  application  covering  uses of
XERECEPT and analogues.  We are  responsible  for the costs of  prosecuting  the
patent  applications  related to XERECEPT for which it has exclusive  rights. In
addition to the patents and pending  applications  we have licensed from others,
we hold U.S. Patent No.  5,870,430  which covers certain liquid  formulations of
CRF and CRF-related peptides.

     In addition to patent protection,  we rely upon trade secret protection for
its  confidential  and  proprietary  information.  It is our  policy  that  each
employee  enter  into a  confidentiality  agreement  which  contains  provisions
generally  prohibiting  the  disclosure of  confidential  information  to anyone
outside NTI and requiring disclosure to NTI of ideas, developments,  discoveries
or inventions  conceived during  employment and assignment to NTI of

                                       18
<PAGE>
proprietary  rights to such matters  related to the business and  technology  of
NTI.  However,  it is  possible  that these  agreements  could be  breached.  In
addition,  others may independently develop substantially equivalent proprietary
information  and  techniques  or otherwise  gain access to our trade  secrets or
disclose such technology.

MANUFACTURING

     Memantine currently is being supplied to NTI by our corporate collaborator,
Merz. We have also contracted with external vendors to manufacture compounds for
our  other  clinical  trials.   The  manufacturers  of  clinical  products  have
represented to us that they are qualified to produce drugs under FDA regulations
and that they follow  current  Good  Manufacturing  Practice.  XERECEPT has been
manufactured   by   established   methods  using   chemical   synthesis  to  NTI
specifications.  We performed audits on our contractors who supplied XERECEPT to
assess compliance with the cGMP  regulations.  Alternative cGMP suppliers of the
bulk  drugs  and of  finished  dosage  form  products  are  available  to us. We
currently  have  no  plans  to  build  or  develop  an  in-house   manufacturing
capability.

LEGAL PROCEEDINGS

     We are not a party to any legal proceedings.

PROPERTIES

     Our executive offices are located in Richmond,  California. We entered into
a  sublease  dated  March 31,  1999  that  decreased  our  occupied  space  from
approximately  6,900 square feet to 5,750 square feet.  The master lease,  which
commenced in April 1995, will expire in April 2000.

                                       19
<PAGE>
               DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The directors and executive officers of NTI are as follows:

Name                                  Age     Position
- ----                                  ---     --------
Paul E. Freiman                       65      President and Chief Executive
                                              Officer and Director
Calvert Y. Yee                        47      Vice President, Operations and
                                              Administration
Lisa U. Carr, M.D., Ph.D.             44      Vice President, Medical Affairs
Abraham E. Cohen                      63      Chairman of the Board of Directors
Enoch Callaway, M.D.                  75      Director
Theodore L. Eliot, Jr.                71      Director
Abraham D. Sofaer                     61      Director
John B. Stuppin                       66      Director

     Paul E.  Freiman  joined the  Company  as a director  in April 1997 and was
selected  President  and Chief  Executive  Officer in May 1997. He is the former
chairman  and  chief  executive  officer  of  Syntex  Corporation.  Mr.  Freiman
currently serves as chairman of the boards of Digital GeneTechnologies,  Inc., a
private  genomics  company and SciGen Pte. Ltd. Mr. Freiman  currently serves on
the boards of Penwest  Pharmaceutical  Co., Calypte  Biomedical  Corporation and
Otsuka America Pharmaceuticals,  Inc. He has been chairman of the Pharmaceutical
Manufacturers  Association of America  (PhARMA) and has also chaired a number of
key PhARMA  committees.  Mr.  Freiman is also an advisor to Burrill & Co., a San
Francisco merchant bank. Mr. Freiman holds a B.S. degree from Fordham University
and an honorary doctorate from the Arnold & Marie Schwartz College of Pharmacy.

     Calvert Y. Yee has been Vice President,  Operations and  Administration  of
the Company since February 1991.  Prior to joining NTI, Mr. Yee was employed for
15 years with Cetus  Corporation,  where he held both  research  and  management
positions,  serving as Senior Director,  Research and Development Administration
and Operations  from 1987 until  September 1990. Mr. Yee holds an A.B. degree in
bacteriology and an M.B.A. degree from the University of California, Berkeley.

     Lisa U. Carr,  M.D.,  Ph.D. was appointed Vice President of Medical Affairs
in  September  1998.  Prior to joining  the  Company in June 1998 as Director of
Medical  Affairs,  Dr. Carr was Associate  Medical  Director at the Institute of
Clinical  Immunology and Infectious  Diseases at Syntex Development  Research in
Palo Alto, California.  Dr. Carr has more than 8 years of international industry
experience in conducting clinical drug trials in immunosuppression,  nephrology,
neurology,  gastroenterology and cardiovascular disorders. She was Lead Clinical
Research   Physician  at  Syntex,   directing  a  pivotal   clinical   trial  of
mycophenolate mofetil (IND and NDA approved for solid organ transplantation). As
a member of the Clinical  Dossier  Filing  Team,  Dr. Carr was  instrumental  in
obtaining an  accelerated  drug approval from the FDA in 1995,  and  Europe-wide
approval was granted in 1996. Dr. Carr holds a medical degree and a Ph.D.  magna
cum laude degree from the University of Munich in Germany.

     Abraham E. Cohen has been a director  of the  Company  since March 1993 and
has been  Chairman of the Board of Directors  since  August  1993.  From 1982 to
1992,  Mr. Cohen served as Senior Vice President of Merck & Co. and from 1977 to
1988 as President of the Merck Sharp & Dohme  International  Division.  While at
Merck,  he  played  a key  role  in the  development  of  Merck's  international
business,  initially in Asia, then in Europe and, subsequently,  as President of
MSDI,  which  manufactures  and markets human health products outside the United
States.  Since his retirement from Merck and MSDI in January 1992, Mr. Cohen has
been  active as an  international  business  consultant.  He was a  director  of
Agouron  Pharmaceuticals,  Inc. until its merger with Warner-Lambert Company. He
is  presently  a director  of six public  companies:  Akzo  Nobel  N.V.,  Chugai
Pharmaceutical  Co.,  Pharmaceutical  Product  Development,  Smith Barney,  Teva
Pharmaceutical Industries, Ltd. and Vasomedical, Inc.

                                       20
<PAGE>
     Enoch  Callaway,  M.D. is a founder and former  employee of the Company and
has served as a director of the  Company  since  September  1987.  Dr.  Callaway
previously  served as Chairman  of the Board of  Directors  of the Company  from
September 1987 to November 1990, as Co-Chairman of the Board of the Company from
November 1990 until August 1993, as Vice President of the Company from September
1988 until August 1993 and as Secretary of the Company from September 1988 until
September  1991. Dr.  Callaway has been Emeritus  Professor of Psychiatry at the
University  of  California,  San Francisco  since 1986,  where he also served as
Director of Research at the Langley  Porter  Psychiatric  Institute from 1959 to
1988. Dr. Callaway is a director of Candide, Inc. He holds A.B. and M.D. degrees
from Columbia University.

     Theodore L. Eliot, Jr. has served as a director of the Company since August
1992.  Previously,  he served as a director of the Company from  September  1988
until April 1992,  and as a Vice  President of the Company from  September  1988
until  September  1991.  Mr. Eliot retired from the United States  Department of
State in 1978 with the rank of  Ambassador.  He  served as Dean of the  Fletcher
School of Law and Diplomacy  from 1979 to 1985 and as Secretary  General for the
United States of the Bilderberg Meetings from 1981 to October 1993. Mr. Eliot is
a director of Fiberstars, Inc., a publicly held company. Mr.

Eliot holds B.A. and M.P.A. degrees from Harvard University.

     Abraham D. Sofaer has served as a director of the Company since April 1997.
Mr. Sofaer is the first George P. Shultz  Distinguished  Scholar & Senior Fellow
at the Hoover Institution,  Stanford University, appointed in 1994. From 1990 to
1994, Mr. Sofaer was a partner at the legal firm of Hughes,  Hubbard and Reed in
Washington, D.C., where he represented several major U.S. public companies. From
1985 to 1990, he served as the Legal Adviser to the United States  Department of
State, where he was principal negotiator on several key international  disputes.
From 1979 to 1985, he served as a federal judge in the Southern  District of New
York.  Mr.  Sofaer is  registered  as a qualified  arbitrator  with the American
Arbitration  Association and is a member of the National Panel of the Center for
Public  Resolution  of Disputes  (CPR),  a leading  organization  in the area of
resolution of disputes outside  litigation.  He has mediated or is now mediating
merger-acquisition   arbitrations,   commercial  cases  involving  valuation  of
commercial technology, and major securities class action suits. Mr. Sofaer is on
the International Advisory Board of Chugai  Biopharmaceuticals,  Inc. Mr. Sofaer
holds a B.A. degree from Yeshiva College and an L.L.B. from New York University.

     John B.  Stuppin is a founder and employee of the Company and has served as
a director  of the Company  since  September  1988.  From  September  1987 until
October 1990, Mr. Stuppin served as President of the Company, from November 1990
to August 1993 as Co-Chairman of the Board of Directors, from October 1990 until
September 1991 as Executive Vice President,  and from April 1991 until July 1994
as Treasurer.  He also served as acting Chief  Financial  Officer of the Company
from the Company's inception through December 1993. Mr. Stuppin is an investment
banker and a venture capitalist. He has over 25 years experience in the start up
and  management of companies  active in emerging  technologies  and has been the
president of a manufacturing  company. He is a director of Fiberstars,  Inc. Mr.
Stuppin holds an A.B. degree from Columbia College.

                                       21
<PAGE>
                             EXECUTIVE COMPENSATION

     The following table sets forth information  regarding  compensation for the
fiscal years ended June 30, 1997,  1998 and 1999 received by the  individual who
served as the Company's  Chief  Executive  Officer during 1999 and the Company's
two other most highly  compensated  executive officers whose total annual salary
and bonus for fiscal year 1999 exceeded $100,000 (the "Named Officers").

                           Summary Compensation Table

                                                                     Long-Term
                                                                    Compensation
                                          Annual Compensation          Awards
  Name and Principal Position          --------------------------   ------------
    as of June 30, 1999                Year  Salary ($)  Bonus($)    Options(#)
    -------------------                ----  ----------  --------    ----------
Paul E. Freiman (1)                    1999   $152,527     $0          200,000
President and Chief Executive Officer  1998     92,533      0          250,000
                                       1997     27,280      0          145,000

Lisa U. Carr, M.D., Ph.D.(2)           1999    104,360      0          100,000
Vice President, Medical Affairs        1998      8,333      0                0

Calvert Y. Yee                         1999    105,625      0           10,000
Vice President, Operations and
 Administration                        1998     97,985      0           74,763
                                       1997     96,277      0                0
- ----------
(1)  1997 salary shown for Mr. Freiman  includes $5,068 for consulting  services
     earned prior to joining the Company as its  President  and Chief  Executive
     Officer on May 8, 1997.
(2)  Dr. Carr joined the Company on June 1, 1998.

     The following table sets forth further information  regarding the grants of
stock options during the fiscal year ended June 30, 1999 to the Named  Officers.
Since inception, the Company has not granted any stock appreciation rights.

                          Option Grants in Fiscal 1999

                                             Individual Grant
                           -----------------------------------------------------
                                            Percent of
                            Number of     Total Options
                            Securities      Granted to
                            Underlying     Employees in  Exercise or
                             Options          Fiscal      Base Price  Expiration
       Name                Granted (#)(1)   1999(%)(2)   ($/Share)(1)    Date
       ----                --------------   ----------   ------------    ----
Paul E. Freiman              50,000(3)         10.2%        $0.625      3/17/09
                            150,000(4)         30.7          0.70       9/22/08

Lisa U. Carr, M.D., Ph.D.   100,000(5)         20.5          0.625      1/20/09

Calvert Y. Yee               10,000(6)          2.0          0.625      2/28/09

- ----------
(1)  The options  were granted  under the  Company's  Amended and Restated  1993
     Stock Plan.  The  exercise  price on the date of grant was equal to 100% of
     the fair market value on such date.
(2)  Based on a total of 488,500 stock options  granted to employees  during the
     fiscal year ended June 30, 1999.
(3)  These options were fully exercisable upon the date of grant.
(4)  The options  become  exercisable at a rate of 20% per year over a period of
     five years.
(5)  15% of these options were  exercisable  on the grant date. The remainder of
     the options become  exercisable at a rate of 2.125% per month until May 30,
     2002.
(6)  These  options  become  exercisable  at a rate of 2.083%  per month  over a
     period of four years.

                                       22
<PAGE>
     None of the Named  Officers  exercised any options  during fiscal 1999. The
following  table  sets  forth  information  regarding  the  number  and value of
unexercised options held by the Named Officers at fiscal year-end.

             Aggregated Option Exercises and Fiscal Year-End Option
                           Values in Last Fiscal Year

                                          Value of Unexercised
                         -------------------------------------------------------
                         Number of Unexercised Options   In-the-Money Options
                           Held at Fiscal Year End(#)   at Fiscal Year End($)(1)

        Name             Exercisable  Unexercisable   Exercisable  Unexercisable
        ----             -----------  -------------   -----------  -------------
Paul E. Freiman            245,000       350,000        $21,610       $63,690

Lisa U. Carr, M.D., Ph.D.   29,875        70,125          7,319        17,181

Calvert Y. Yee              79,763         4,000         22,528           248

- ----------
(1)  Based on the  amount,  if any,  by which  the last per  share  quote of the
     Common Stock on the OTC-Bulletin Board(R) at June 30, 1999 ($0.875) exceeds
     the exercise price.

Employment Agreements

     In March 1999, the Company entered into a retention  agreement with Lisa U.
Carr,  M.D.,  Ph.D.  which  provides for  additional  compensation  of $100,000,
payable on  February  1,  2001,  provided  Dr.  Carr  continues  to serve as the
Company's Vice President, Medical Affairs through February 1, 2001. In the event
of a change of control of the Company and subsequent involuntary  termination of
Dr.  Carr prior to  February  1, 2001,  Dr. Carr will be entitled to receive the
additional compensation of $100,000.

Pension and Long-Term Incentive Plans

     The Company has no pension or long-term incentive plans.

Directors' Compensation

     Dr.  Callaway was paid $15,000 during fiscal 1999 for  consulting  services
rendered to the Company pursuant to a consulting agreement. Mr. Stuppin was paid
$13,008  during  fiscal  1999  as an  employee  of the  Company.  Mr.  Cohen  is
reimbursed for his expenses for each meeting attended.

     Non-employee  directors  are  currently  eligible  to  participate  in  the
Company's 1993 Stock Plan. Subject to the 1993 Stock Plan, each new non-employee
director  of the Company  will  receive an option to  purchase  5,000  shares of
common  stock on the date of his or her election to the Board at the fair market
value on the date of grant. In addition,  each non-employee  director continuing
to serve on the Board will also receive an  automatic  annual grant of an option
to purchase 1,000 shares of the Company's  Common Stock at the Annual Meeting of
the Company's  stockholders.  On November 12, 1998, Dr. Callaway, Mr. Eliot, Mr.
Sofaer and Mr.  Cohen were each  granted an option to purchase  1,000  shares of
Common Stock at an exercise price of $0.672 per share.  The options vested fully
on November 12, 1999. On November 11, 1999, Dr. Callaway,  Mr. Eliot, Mr. Sofaer
and Mr.  Cohen were each  granted an option to purchase  1,000  shares of Common
Stock at an exercise  price of $1.94 per share.  The options  will vest fully on
November 11, 2000.

     In March 1999, Dr. Callaway,  Mr. Eliot,  Mr. Sofaer,  and Mr. Stuppin were
each granted an option to purchase 15,000 shares of Common Stock. In March 1999,
Mr. Cohen was granted an option to purchase 25,000 shares of Common Stock. These
options have an exercise price of $0.625 per share and were fully exercisable at
the grant date.

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     During the fiscal  year ended June 30,  1998,  Paul  Freiman,  NTI's  Chief
Executive Officer and President,  was a member of the board of directors of Life
Science Economics,  Inc. or LSE. We had a consulting  arrangement with LSE under
which we paid an aggregate  of $409,000 in fiscal  1998.  We did not pay LSE any
consulting fees in fiscal 1999.

                                       23
<PAGE>
         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The  following  table  sets  forth  information   regarding  the  Company's
outstanding  shares of each class of equity securities  beneficially owned as of
December  1,  1999 by:  (1) each  person  who is  known  to the  Company  to own
beneficially  more than five  percent  of each class of the  outstanding  equity
securities;  (2) each of the Company's directors;  (3) all officers named in the
Summary  Compensation  Table above; and (4) all directors and executive officers
as  a  group.  The  information  relating  to  share  ownership  is  based  upon
information furnished to the Company. The number of shares of Common Stock shown
includes shares subject to warrants or options  exercisable within 60 days after
December  1, 1999 as if such  shares  were  outstanding  on December 1, 1999 and
assumes that no other person has exercised any outstanding  warrants or options.
Applicable  percentages  of ownership are based on  13,259,790  shares of common
stock  outstanding and 2,332,000 shares of Series A Preferred stock  outstanding
as of December 1, 1999. The Company believes that the beneficial  owners of each
class of equity securities,  based on information  supplied by such owners, have
sole  investment  and voting  power with  respect to the shares of each class of
equity securities shown as being beneficially owned by them, except as otherwise
set forth in the footnotes to the table.

<TABLE>
<CAPTION>
                                                   Number Subject
                                                   to Options and                  Number of     Percentage
                                      Number of       Warrants    Percentage of    Shares of     of Series A
                                      Shares of     Exercisable      Common        Series A       Preferred
      Name and Address               Common Stock  Within 60 days     Stock     Preferred Stock     Stock
      ----------------               ------------  --------------     -----     ---------------     -----
<S>                                    <C>           <C>             <C>            <C>             <C>
New York Life Insurance Company (1)      553,750       160,000         4.1%         400,000         17.2%
  51 Madison Avenue, Room 206
  New York, NY 10010
Arthur Rock (2) ....................   1,164,997       415,071         8.5          500,000         21.4
  One Maritime Plaza, #1220
  San Francisco, CA 94111
Lindsay A. Rosenwald, M.D. (3) .....   1,750,000       500,000        12.7               --           --
  787 Seventh Avenue, 48th Floor
  New York, NY 10019
Enoch Callaway, M.D. (4) ...........     126,204        43,028           *            4,000            *
Abraham E. Cohen ...................     557,891       288,054         4.1          100,000          4.3
Theodore L. Eliot, Jr. (5) .........      80,160        52,616           *               --           --
Paul E. Freiman (6) ................     296,000       295,000         2.2               --           --
Lisa U. Carr, M.D., Ph.D ...........      42,714        40,500           *               --           --
Abraham D. Sofaer ..................     562,931       285,004         4.2          100,000          4.3
John B. Stuppin (7) ................     656,181       201,428         4.9          100,000          4.3
Calvert Y. Yee .....................      84,002        79,055           *               --           --
All directors and executive officers
(as a group 8 persons)(8) ..........   2,406,083     1,284,685        16.5          304,000         13.0
</TABLE>
- ----------
*Less than 1%

(1)  According to Schedule 13G filed by New York Life Insurance Company.
(2)  According to Schedule 13D/A filed by Arthur Rock.
(3)  According to Form 3 flied by Lindsay A. Rosenwald, M.D.
(4)  The number of shares of Common Stock shown  includes  83,176 shares held by
     Enoch Callaway and Dorothy C. Callaway,  Trustees or Successor  Trustees of
     the Callaway 1989 Trust,  executed May 20, 1989. Dr. Callaway may be deemed
     to have a beneficial interest in the shares held by the Callaway Trust.
(5)  The number of shares of Common Stock shown  includes  27,544 shares held by
     Theodore L. Eliot,  Jr. and Patricia P. Eliot,  Trustees,  the Eliot Trust,
     February 27, 1987. Mr. Eliot may be deemed to have a beneficial interest in
     the shares held by the Eliot Trust.
(6)  The number of shares of Common  Stock shown  includes  1,000 shares held in
     the estate of Paul E. Freiman and Anna Mazzuchi Freiman.

                                       24
<PAGE>
(7)  The number of shares of Common Stock shown includes  453,253 shares held by
     John B. Stuppin and Jane K. Stuppin,  Trustees UTD dated March 11, 1991 and
     500  shares  held by Mrs.  Stuppin.  Mr.  Stuppin  may be  deemed to have a
     beneficial  interest  in the  shares  held by the  Stuppin  Trust  and Mrs.
     Stuppin.

(8)  The  number of  shares  of Common  Stock  shown  includes  shares  included
     pursuant to notes 4-7.

                           DESCRIPTION OF COMMON STOCK

     NTI is authorized to issue 25,000,000  shares of Common Stock and 5,000,000
shares of Preferred  Stock,  par value $.001 per share. On December 1, 1999, NTI
had  13,259,790  shares of common stock  issued and  outstanding  and  2,332,000
Shares of Series A Preferred Stock issued and outstanding.

     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.  Stockholders do
not have cumulative voting rights. The holders of common stock have the right to
receive  dividends if they are declared by the NTI Board of Directors  and there
are  sufficient  funds to legally  pay  dividends,  subject to the rights of the
holders of any outstanding  preferred stock to receive  preferential  dividends.
Upon the liquidation of NTI,  holders of common stock would share ratably in any
assets  available  for  distribution  to  stockholders   after  payment  of  all
obligations of NTI and the aggregate  liquidation  preference (including accrued
and unpaid dividends) of any outstanding preferred stock. Shares of common stock
currently   outstanding  are  validly  issued,  fully  paid  and  nonassessable.
ChaseMellon is the transfer agent and registrar for the NTI common stock.

                                       25
<PAGE>
                              SELLING STOCKHOLDERS

     The following  table sets forth certain  information  regarding  beneficial
ownership of NTI's common stock by the selling  stockholders  (1) as of December
1, 1999 and (2) as  adjusted  to  reflect  the sale by selling  stockholders  of
shares offered by this prospectus.

<TABLE>
<CAPTION>
                                              Common Stock                                 Common Stock
                                           Beneficially Owned                            Beneficially Owned
                                          Prior to Offering(1)                           After Offering (1)
                                  ----------------------------------                     -------------------
                                                Number of
                                                  Shares
                                                 Issuable
                                                 within 60
                                   Number of      Days of
                                  Outstanding   December 1,            Shares Offered
          Holder                    Shares       1999(2)     Percent     in Offering     Number      Percent
          ------                    ------       -------     -------     -----------     ------      -------
<S>                                  <C>          <C>        <C>         <C>            <C>          <C>
Active Site Partners...........      62,500       25,000      *             87,500             0        0

Apollo Medical Partners........      62,500       25,000      *             87,500             0        0

Aries Domestic Fund, LP........     352,750      141,100      3.7          493,850             0        0

Aries Domestic Fund II, LP.....      27,500       11,000      *             38,500             0        0

Aries Master Fund..............     869,750      347,900      8.9        1,217,650             0        0

Larry R. Baer..................      25,000       10,000      *             35,000             0        0

Christopher H. Berg Revocable
Trust dated 3/28/95............      75,000       30,000      *            105,000             0        0

Mark Berger....................     100,000       40,000      1.1          140,000             0        0

Bestley Holdings, Ltd..........     125,000       50,000      1.3          175,000             0        0

Donald S. Brown................      75,000       30,000      *            105,000             0        0

Alan R. Brudos.................      11,895       21,000      *              8,750        24,145        *

James Buckley Jr...............      93,982       62,500      1.2           43,750       112,732        *

Edna Caden Budde Trust U/A
dated 4/30/86..................      62,500       25,000      *             87,500             0        0

Cape 1998 Trust................      69,990       96,071      1.2           87,500        78,561        *

John M. de Castro, Ph.D........      59,700       23,880      *             83,580             0        0

Clarion Capital Corporation....     187,500       75,000      2.0          262,500             0        0

Clarion Offshore Fund Ltd......      67,500       27,000      *             94,500             0        0

Clarion Partners, LP...........     182,500       73,000      1.9          255,500             0        0

Abraham E. Cohen IRA(3)........     269,837      388,054      4.8          175,000       482,891       3.5

The Eliot Trust dated
2/27/87(4) ....................      27,544       52,616      *              8,750        71,410        *

Charles B. Engelberg, M.D......           0      431,000      3.1          431,000             0        0

Claire Engelberg...............      62,500       25,000      *             87,500             0        0

Herbert C.V. Feinstein.........      31,250       12,500      *             43,750             0        0
</TABLE>

                                       26
<PAGE>
<TABLE>
<CAPTION>
                                              Common Stock                                 Common Stock
                                           Beneficially Owned                            Beneficially Owned
                                          Prior to Offering(1)                           After Offering (1)
                                  ----------------------------------                     -------------------
                                                Number of
                                                  Shares
                                                 Issuable
                                                 within 60
                                   Number of      Days of
                                  Outstanding   December 1,            Shares Offered
          Holder                    Shares       1999(2)     Percent     in Offering     Number      Percent
          ------                    ------       -------     -------     -----------     ------      -------
<S>                                  <C>          <C>        <C>         <C>            <C>          <C>
Jacob and Gloria Feinstein
Trust dated 9/18/92............      62,500       25,000      *             87,500             0        0

Joseph Feinstein...............      62,500       25,000      *             87,500             0        0

Allan Fishbein, M.D............     125,000       50,000      1.3          175,000             0        0

Richard J. Gaston..............      62,500       25,000      *             87,500             0        0

John R. Hillsman...............      62,500       25,000      *             87,500             0        0

Jupiter Partners...............     206,715      272,500      3.5          113,750       365,465       2.7

Leon Kaplan....................      37,500       15,000      *             52,500             0        0

Daniel S. Katz IRA.............     125,000       50,000      1.3          175,000             0        0

Robert L. Koch & Cori L. Pace
U/A dated 6/4/93...............      62,500       25,000      *             87,500             0        0

Robert W. Ledoux...............      15,011       21,500      *              8,750        27,761        *

Victor S. Lee..................     312,500      125,000      3.3          437,500             0        0

Marksman Partners, LP..........     120,000       40,000      1.2          140,000        20,000        *

Joyce McDermott................     250,000      100,000      2.6          350,000             0        0

Molumphy Capitol Management
Profit Sharing Plan............      37,593       53,000      *             17,500        73,093        *

Leonard O. Oppenheim & Dena G.
Oppenheim......................      75,000       30,000      *            105,000             0        0

Patriot Group, LP..............      75,000       30,000      *            105,000             0        0

Prudent Bear Fund, Inc.........     437,500      175,000      4.6          612,500             0        0

Qureishi 1998 Family Trust.....     175,000       70,000      1.8          245,000             0        0

Arthur Rock....................     749,926      915,071     11.7          350,000     1,314,997       9.3

Dr. Henri van de Sand..........      30,000       12,000      *             42,000             0        0

Charles L. Shreves.............      42,500       33,000      *             17,500        58,000        *

Abraham D. Sofaer & Marian
Scheurer Sofaer(5).............     277,927      385,004      4.9          175,000       487,931       3.6

Frank J. Soriano...............      14,018        4,000      *             14,000         4,018        *

John B. & Jane K. Stuppin
Trust dated 3/11/91(6).........     454,753      301,428      5.6          140,000       616,181       4.5
</TABLE>

                                       27
<PAGE>
<TABLE>
<CAPTION>
                                              Common Stock                                 Common Stock
                                           Beneficially Owned                            Beneficially Owned
                                          Prior to Offering(1)                           After Offering (1)
                                  ----------------------------------                     -------------------
                                                Number of
                                                  Shares
                                                 Issuable
                                                 within 60
                                   Number of      Days of
                                  Outstanding   December 1,            Shares Offered
          Holder                    Shares       1999(2)     Percent     in Offering     Number      Percent
          ------                    ------       -------     -------     -----------     ------      -------
<S>                                  <C>          <C>        <C>         <C>            <C>          <C>
Robert R. Tufts & Joyce A.
Tufts, Trustees U/A dated
9/18/97 .......................     163,143      184,000      2.6           49,000       298,143       2.2

Robert M. Winokur..............      31,250      152,500      1.4           43,750       140,000       1.0

Ashford D. Wood................      89,458       94,000      1.4           35,000       148,458       1.1

Phelps M. Wood.................      87,055       12,500      *             43,750        55,805        *
</TABLE>

- ----------
* Less than 1%

(1)  Applicable  percentage of ownership is based on 13,259,790 shares of common
     stock outstanding as of December 1, 1999.
(2)  Includes  number of shares  issuable  upon  exercise  of stock  options and
     common stock purchase  warrants  exercisable  within 60 days of December 1,
     1999,  as well as upon  conversion  of Series A Preferred  Stock as if such
     shares were  outstanding  on  December  1, 1999 and  assumes  that no other
     person has exercised any outstanding  warrants or options nor converted any
     Series A Preferred Stock.
(3)  Mr. Cohen is a director of NTI.
(4)  Theodore L. Eliot Jr., Trustee of the Eliot Trust 2/27/87, is a director of
     NTI and may be deemed to have a  beneficial  interest in the shares held by
     the Eliot Trust.
(5)  Mr. Sofaer is a director of NTI.
(6)  John B.  Stuppin,  Trustee of John B. Stuppin and Jane K. Stuppin UTD dated
     March 11, 1991, is a director of NTI and may be deemed to have a beneficial
     interest in the shares held by the trust. In addition, Mr. Stuppin directly
     holds 1,500 shares of NTI and his wife,  Jane K. Stuppin,  holds 500 shares
     in which Mr. Stuppin may be deemed to have a beneficial interest.

                                       28
<PAGE>
                              PLAN OF DISTRIBUTION

     The selling stockholders may offer their 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 the future;
     *    in negotiated transactions; or
     *    a combination of such methods of sale.

     The selling stockholders may sell the shares at the following prices:

     *    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   stockholders  may  use   broker-dealers   to  sell  the  shares.   The
broker-dealers  will either receive  discounts or  commissions  from the selling
stockholders, or they will receive commissions from purchasers of shares.

     Under   certain   circumstances,   the   selling   stockholders   and   any
broker-dealers that participate in the distribution may be "underwriters" within
the meaning of the  Securities Act of 1933.  Any  commissions  received by these
broker-dealers  and any profits  realized on the resale of shares by them may be
underwriting  discounts and  commissions  under the  Securities Act of 1933. The
selling stockholders may agree to indemnify these broker-dealers against certain
liabilities,   including   liabilities   under  the   Securities  Act  of  1933.
Broker-dealers  may agree  with the  selling  stockholders  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 resell the shares from time
to time in the manner  described  above,  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 NTI common stock for a period of two business
days prior to the commencement of such  distribution.  The selling  stockholders
will also be subject to applicable  provisions of the Securities Exchange Act of
1934 and the rules and regulations  under that Act which may limit the timing of
purchases and sales of shares of NTI's common stock by the selling stockholders.
The selling  stockholders  will pay all  commissions,  transfer taxes, and other
expenses  associated with the sale of securities by them. We are registering the
shares  offered  in  this   prospectus  in  accordance   with  our   contractual
obligations,  and  we  have  paid  the  expenses  of  the  preparation  of  this
prospectus.  We have not made any underwriting  arrangements with respect to the
sale of shares offered by this prospectus.

                                       29
<PAGE>
               LIMITATION OF LIABILITY AND INDEMNIFICATION MATTERS

     NTI has adopted  provisions in its Certificate of Incorporation  that limit
the  liability  of its  directors  for  monetary  damages  for  breach  of their
fiduciary  duty as  directors,  except for  liability  that cannot be eliminated
under  the  General  Corporation  Law of the  State of  Delaware.  Delaware  law
provides that directors of a company will not be personally  liable for monetary
damages for breach of their  fiduciary  duty as directors,  except for liability
(i) for any breach of their duty of loyalty to the company or its  stockholders,
(ii) for acts or omissions not in good faith or involving intentional misconduct
or a knowing  violation  of law,  (iii) for  unlawful  payment of a dividend  or
unlawful  stock  repurchase  or  redemption,  as  provided in Section 174 of the
Delaware  law, or (iv) for any  transaction  for which the  director  derived an
improper personal benefit.

     NTI's  Certificate of  Incorporation  and Bylaws also provide that NTI will
indemnify its directors and officers to the fullest extent permitted by Delaware
law. NTI has entered into separate indemnification agreements with its directors
and officers  that could require the Company,  among other things,  to indemnify
them  against  certain  liabilities  that may arise by reason of their status or
service as directors  and officers and to advance their  expenses  incurred as a
result of any proceeding against them as to which they could be indemnified. NTI
believes  that the  limitation  of  liability  provision in its  Certificate  of
Incorporation and the indemnification  agreements will facilitate its ability to
continue to attract and retain  qualified  individuals to serve as directors and
officers of the Company.

     To the  extent  that  indemnification  for  liabilities  arising  under the
Securities Act of 1933 may be permitted to directors,  officers and  controlling
person of NTI  pursuant  to the above  provisions,  or  otherwise,  NTI has been
advised  that  in  the  opinion  of  the  Securities  Exchange  Commission  such
indemnification  is against  public policy as expressed in the Securities Act of
1933 and is, therefore, unenforceable.

                                  LEGAL MATTERS

     The  validity of the shares  offered  hereby will be passed upon for NTI by
Heller  Ehrman  White &  McAuliffe,  San  Diego,  California,  counsel to NTI in
connection with the offering.

                                     EXPERTS

     Ernst &  Young  LLP,  independent  auditors,  have  audited  our  financial
statements  at June 30,  1999 and 1998,  and for each of the three  years in the
period ending June 30, 1999, and for the period from August 27, 1987 (inception)
through  June  30,  1999  as set  forth  in  their  report  (which  contains  an
explanatory  paragraph describing conditions that raise substantial doubts about
the  Company's  ability to continue as a going concern as described in Note 1 to
the  Financial  Statements.  We have  included our  financial  statements in the
prospectus  and elsewhere in the  registration  statement in reliance on Ernst &
Young LLP's report, given their authority as experts in accounting and auditing.

                       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 Neurobiological Technologies, Inc.) may be found.

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

                                       30
<PAGE>
                          INDEX TO FINANCIAL STATEMENTS

Ernst & Young LLP

Years Ended June 30, 1999, 1998, 1997
Report of Independent Auditors..............................................F-2
Balance Sheets as of June 30, 1999 and 1998.................................F-3
Statements of Operations for the years ended June 30, 1999, 1998, 1997......F-4
Statements of Stockholder's Equity (Deficit) for the years ended
  June 30, 1999, 1998, 1997.................................................F-5
Statements of Cash Flow for the years ended June 30, 1999, 1998, 1997.......F-6
Notes to Financial Statements...............................................F-7

Three Months Ended September 30, 1999 and 1998
Condensed Balance Sheets as of September 30 and June 30, 1999...............F-13
Condensed Statements of Operations for Three Month ended
  September 30, 1999 and 1998...............................................F-14
Condensed Statements of Cash Flow for Three Month ended
  September 30, 1999 and 1998...............................................F-15
Notes to Condensed Financial Statements.....................................F-16

                                      F-1
<PAGE>
Report of Ernst & Young LLP, Independent Auditors

The Board of Directors and Stockholders
Neurobiological Technologies, Inc.

     We  have  audited  the  accompanying   balance  sheets  of  Neurobiological
Technologies,  Inc. (a development stage company) as of June 30, 1999, and 1998,
and the related  statements of operations,  stockholders'  equity  (deficit) and
cash flows for each of the three years in the period  ended June 30,  1999,  and
for the period from August 27, 1987  (inception)  through June 30,  1999.  These
financial  statements are the  responsibility of the Company's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

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

     In our opinion,  the financial statements referred to above present fairly,
in  all  material   respects,   the   financial   position  of   Neurobiological
Technologies,  Inc. at June 30, 1999 and 1998, and the results of its operations
and its cash  flows for each of the three  years in the  period  ended  June 30,
1999, and for the period from August 27, 1987 (inception) through June 30, 1999,
in conformity with generally accepted accounting principles.

     The  accompanying   financial   statements  have  been  prepared   assuming
Neurobiological  Technologies,  Inc. will continue as a going  concern.  As more
fully  described  in  Note  1 to  the  financial  statements,  the  Company  has
experienced  recurring losses during the development  stage and at June 30, 1999
has a working capital  deficit and a net capital  deficiency.  These  conditions
raise  substantial  doubt  about the  Company's  ability to  continue as a going
concern.  The  financial  statements do not include any  adjustments  that might
result from the outcome of this uncertainty.

                                           /s/ ERNST & YOUNG LLP

San Francisco, California
August 6, 1999

                                      F-2
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                         (A development stage company)

                                 BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                              June 30,
                                                                   ------------------------------
                                                                       1999              1998
                                                                   ------------      ------------
<S>                                                                <C>               <C>
ASSETS
Current assets:
 Cash and cash equivalents .....................................   $    201,202      $  2,020,886
 Prepaid expenses and other current assets .....................         43,833            59,016
   Total current assets ........................................        245,035         2,079,902
                                                                   ------------      ------------
 Property and equipment, net ...................................          3,796            53,447
                                                                   ------------      ------------
                                                                   $    248,831      $  2,133,349
                                                                   ============      ============
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
 Accounts payable ..............................................   $    447,124      $     44,998
 Accrued expenses ..............................................        487,715           452,580
 Note payable to shareholder ...................................        200,000                --
                                                                   ------------      ------------
   Total current liabilities ...................................      1,134,839           497,578

Commitments:
Stockholders' equity (deficit):
 Convertible preferred stock, $.001 par value, 5,000,000
  shares authorized, 2,332,000 issued and outstanding
  at June 30, 1999 .............................................      1,166,000                --
 Common stock, $.001 par value, 25,000,000 shares
  authorized, 7,563,575 outstanding at June 30, 1999
  and 7,553,699 at June 30, 1998 ...............................     29,985,352        29,980,898
 Deficit accumulated during development stage ..................    (32,037,360)      (28,345,127)
                                                                   ------------      ------------
   Total stockholders' equity (deficit) ........................       (886,008)        1,635,771
                                                                   ------------      ------------
                                                                   $    248,831      $  2,133,349
                                                                   ============      ============
</TABLE>

See accompanying notes.

                                      F-3
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                         (A development stage company)

                            STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>

                                                                                     Period from
                                                                                   August 27, 1987
                                                  Year ended June 30                 (inception)
                                       -----------------------------------------       through
                                          1999           1998           1997        June 30, 1999
                                       -----------    -----------    -----------    -------------
<S>                                    <C>            <C>            <C>            <C>
REVENUES
   License .........................   $        --    $ 2,100,000    $        --    $  2,100,000
   Grant ...........................        99,544             --             --         149,444
                                       -----------    -----------    -----------    ------------
     Total revenue .................        99,544      2,100,000             --       2,249,444

EXPENSES
   Research and development ........     2,780,305      2,025,646      5,477,504      25,068,686
   General and administrative ......     1,058,421      2,346,893      2,298,391      11,396,572
                                       -----------    -----------    -----------    ------------
     Total expenses ................     3,838,726      4,372,539      7,775,895      36,465,258
                                       -----------    -----------    -----------    ------------
   Operating loss ..................    (3,739,182)    (2,272,539)    (7,775,895)    (34,215,814)
   Interest income .................        46,949         99,335        407,307       2,178,454
                                       -----------    -----------    -----------    ------------

NET LOSS ...........................   $(3,692,233)   $(2,173,204)   $(7,368,588)   $(32,037,360)
                                       ===========    ===========    ===========    ============
BASIC AND DILUTED NET LOSS
   PER SHARE .......................   $     (0.49)   $     (0.32)   $     (1.13)
                                       ===========    ===========    ===========
Shares used in basic and diluted net
   loss per share calculation ......     7,554,522      6,862,186      6,527,392
                                       ===========    ===========    ===========
</TABLE>

See accompanying notes.

                                      F-4
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                         (A development stage company)

                  STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)
<TABLE>
<CAPTION>
                                                                                           Deficit          Total
                                                                    Common Stock        Accumulated in   Stockholders'
                                                 Preferred     -----------------------    Development      Equity
                                                   Stock         Shares        Amount       Stage         (Deficit)
                                                -----------    ---------   -----------   ------------    ------------
<S>                                            <C>            <C>         <C>           <C>             <C>
Period from August 27, 1987
 (inception) through June 30, 1996
  Issuance of common stock ...............     $        --      740,863   $ 1,616,706   $         --    $  1,616,706
  Issuance of common stock for services...              --       72,428        84,500             --          84,500
  Issuance of common stock for license
    rights ...............................              --       10,820        12,625             --          12,625
  Issuance of warrants to purchase
    179,786 shares of common stock .......              --           --         2,790             --           2,790
  Exercise of warrants ...................              --      142,500        70,252             --          70,252
  Exercise of options ....................              --       86,620       215,838             --         215,838
  Issuance of common stock under
    employee stock purchase plan .........              --       42,342       112,474             --         112,474
  Issuance of 5,691,000 shares of Series
    A preferred stock, net of issuance
    costs ................................       5,573,194           --            --             --       5,573,194
  Issuance of 2,657,881 shares of Series
    B preferred stock, net of issuance
    costs ................................       1,653,888           --            --             --       1,653,888
  Conversion of preferred stock in
    connection with the initial
    public offering ......................      (7,227,082)   1,046,912     7,227,082             --              --
  Issuance of common stock at $8.00
    per share in connection with initial
    public offering, net of issuance
    costs ................................              --    1,840,000    12,817,000             --      12,817,000
  Issuance of common stock at $3.25
    per share in connection with public
    offering, net of issuance costs ......              --    2,530,000     7,143,279             --       7,143,279
  Net loss and comprehensive loss ........              --           --            --    (18,803,335)    (18,803,335)
                                               -----------    ---------   -----------   ------------    ------------
Balances at June 30, 1996 ................              --    6,512,485    29,302,546    (18,803,335)     10,499,211
  Issuance of common stock for services ..              --        5,000        23,750             --          23,750
  Exercise of options ....................              --        2,999        10,331             --          10,331
  Issuance of common stock under
    employee stock purchase plan .........              --       19,830        45,844             --          45,844
  Net loss and comprehensive loss ........              --           --            --     (7,368,588)     (7,368,588)
                                               -----------    ---------   -----------   ------------    ------------
Balances at June 30, 1997 .................              --    6,540,314    29,382,471    (26,171,923)      3,210,548
  Issuance of warrants to purchase
    125,000 shares of common stock .......               --           --        40,500             --          40,500
  Issuance of common stock and
    warrants at $0.55 per unit ...........               --    1,010,410       555,725             --         555,725
  Issuance of common stock under
    employee stock purchase plan .........               --        2,975         2,202             --           2,202
  Net loss and comprehensive loss ........               --           --            --     (2,173,204)     (2,173,204)
                                                -----------    ---------   -----------   ------------    ------------
Balances at June 30, 1998 .................              --    7,553,699    29,980,898    (28,345,127)      1,635,771
  Issuance of common stock under
    employee stock purchase plan .........               --        9,876         4,454             --           4,454
  Issuance of 2,332,000 shares of
    Series A preferred stock and
    warrants at $2.50 per unit,
    net of issuance costs ................        1,166,000           --            --             --       1,166,000
  Net loss and comprehensive loss ........               --           --            --     (3,692,233)     (3,692,233)
                                                -----------    ---------   -----------   ------------    ------------
Balances at June 30, 1999 .................     $ 1,166,000    7,563,575   $29,985,352   $(32,037,360)   $   (886,008)
                                                ===========    =========   ===========   ============    ============
</TABLE>

See accompanying notes.

                                      F-5
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                         (A development stage company)

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>

                                                                                               Period from
                                                                                             August 27, 1987
                                                             Year ended June 30,               (inception)
                                                  -----------------------------------------      through
                                                     1999           1998            1997      June 30, 1999
                                                  -----------    -----------    -----------    ------------
<S>                                               <C>            <C>            <C>            <C>
OPERATING ACTIVITIES
Net loss ......................................   $(3,692,233)   $(2,173,204)   $(7,368,588)   $(32,037,360)
Adjustments to reconcile net loss to net
  cash used in operating activities:
   Depreciation and amortization ..............        41,792        128,402        122,773         638,206
   Issuance of common stock and warrants
     for license rights and services ..........            --         40,500             --         139,775
   Changes in assets and liabilities:
     Prepaid expenses and other ...............        15,183        112,420        165,986         (43,833)
     Accounts payable and accrued expenses ....       437,261       (498,978)       103,404         934,839
                                                  -----------    -----------    -----------    ------------
Net cash used in operating activities .........    (3,197,997)    (2,390,860)    (6,976,425)    (30,368,373)

INVESTING ACTIVITIES
Purchase of investments .......................            --             --     (1,462,723)    (33,839,678)
Sale of investments ...........................            --      2,559,911      5,060,455      33,839,678
Purchases of property and equipment, net ......         7,859         15,506        (25,645)       (358,940)
Additions to patents and licenses .............            --             --             --        (283,062)
                                                  -----------    -----------    -----------    ------------
Net cash provided by (used in) investing
  activities ..................................         7,859      2,575,417      3,572,087        (642,002)

FINANCING ACTIVITIES
Proceeds of short-term borrowings .............       200,000             --             --         435,000
Issuance of common stock, net .................         4,454        557,927         79,925      22,618,495
Issuance of preferred stock, net ..............     1,166,000             --             --       8,158,082
                                                  -----------    -----------    -----------    ------------
Net cash provided by financing activities .....     1,370,454        557,927         79,925      31,211,577

Increase (decrease) in cash and cash
  equivalents .................................    (1,819,684)       742,484     (3,324,413)        201,202
Cash and cash equivalents at beginning of
  period ......................................     2,020,886      1,278,402      4,602,815              --
                                                  -----------    -----------    -----------    ------------
Cash and cash equivalents at end of period ....   $   201,202    $ 2,020,886    $ 1,278,402    $    201,202
                                                  ===========    ===========    ===========    ============
SUPPLEMENTAL DISCLOSURES
Conversion of short-term-borrowings to
   Series A preferred stock ...................   $        --    $        --    $        --    $    235,000
                                                  ===========    ===========    ===========    ============
Conversion of preferred stock to
   common stock ...............................   $        --    $        --    $        --    $  7,227,082
                                                  ===========    ===========    ===========    ============
</TABLE>

See accompanying notes.

                                      F-6
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                         (A development stage company)

                          NOTES TO FINANCIAL STATEMENTS

Note 1. Organization and Significant Accounting Policies

Organization

     Neurobiological Technologies,  Inc. ("NTI" or the "Company") is an emerging
drug  development  company  focused on the clinical  evaluation  and  regulatory
approval of  neuroscience  drugs.  The Company's  strategy is to in-license  and
develop  early-stage  drug  candidates that target major medical needs and which
can  be  rapidly  commercialized.  The  Company's  experienced  management  team
oversees the human clinical trials necessary to establish  preliminary  evidence
of  efficacy  and  seeks  partnerships  with  pharmaceutical  and  biotechnology
companies to complete development and marketing of its product candidates.

Basis of Presentation

     In the course of its  development  activities,  the  Company  has  incurred
significant  losses and  expects  additional  losses in the year ending June 30,
2000.  At June 30,  1999,  the Company has a working  capital  deficit and a net
capital deficiency. In order to continue operations through the year ending June
30, 2000 and beyond, additional financing will be required. The Company believes
that its  available  cash and cash  equivalents  of $201,000 as of June 30, 1999
combined with funds from Merz loan agreement and a private placement, subsequent
to fiscal year end,  are  adequate to fund its  operations  through  October 31,
1999. NTI will need to raise substantial  additional  capital to fund subsequent
operations.  The Company  intends to seek such funding through public or private
financings, collaborative or other arrangements with corporate partners, or from
other sources.  The Company may seek to raise  additional  funds whenever market
conditions  permit.  However,  there can be no  assurance  that  funding will be
available from any of these sources, or, if available, that it will be available
on acceptable  terms. If the Company is not able to raise adequate funds, it may
be required to delay,  scale back, or terminate its clinical trials or to obtain
funds through entering into arrangements with  collaborative  partners or others
that may  require the Company to give up  additional  rights to its  technology,
product candidates or products.  The accompanying financial statements have been
prepared  assuming  the Company  will  continue as a going  concern,  and do not
include any adjustments that might result from the outcome of this uncertainty.

Use of Estimates

     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions   that  affect  reported  amounts  of  assets  and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the reported  amount of revenues and expenses during the reported
period. Actual results could differ from those estimates.

Key Supplier

     The Company is dependent on one party for the  manufacturing  and supply of
one of its drugs for the Company's  human clinical trials and for the successful
commercialization  of the  related  product.  Any  failure  on the  part of this
company in this regard could adversely affect the Company's business and results
of operations.

Cash and Cash Equivalents

     Cash  and  cash  equivalents,  which  consist  of cash  and  highly  liquid
short-term  investments  with  insignificant  interest  rate  risk and  original
maturities  of three  months or less at date of  purchase,  are  stated at cost,
which approximates fair value.


                                      F-7
<PAGE>

Property and Equipment

     Property and equipment is stated at cost.  Depreciation is calculated using
the  straight-line  method based on estimated  useful lives of 2 to 7 years. The
balances at June 30, 1999 and 1998 consisted of the following:

                                                   1999            1998
                                                 ---------       ---------
     Machinery and equipment ..............      $ 176,756       $ 185,820
     Furniture and fixtures ...............        115,426         114,221
                                                 ---------       ---------
                                                   292,182         300,041
     Less accumulated depreciation ........       (288,386)       (246,594)
                                                 ---------       ---------
                                                 $   3,796       $  53,447
                                                 =========       =========

Net Loss Per Share

     Net loss per share is  presented  under the  requirements  of FAS No.  128,
"Earnings per Share" ("FAS 128").  Basic earnings per share computed is based on
the average shares of common stock outstanding and excludes any dilutive effects
of  options,   warrants,  and  convertible   securities.   Potentially  dilutive
securities such as options, warrants, and convertible preferred stock, have also
been excluded from the computation of diluted net loss per share as their effect
is antidilutive.

Stock-Based Compensation

     The  Company  has  adopted  SFAS  No.  123,   "Accounting  for  Stock-Based
Compensation,"  which  establishes the fair value method of accounting for stock
based  compensation  plans.  The Company  accounts for employee stock options in
accordance  with  Accounting  Principles  Board Opinion No. 25,  "Accounting for
Stock Issued to Employees"  ("APB 25"),  and has adopted the  "disclosure  only"
alternative described in SFAS 123.

Comprehensive Income (Loss)

     In June 1997, the Financial Accounting Standards Board issued Statement No.
130, "Reporting Comprehensive Income," which establishes standards for reporting
and displaying  comprehensive  income (loss) and its components in the financial
statements.  The  Company  has no  items  of other  comprehensive  income,  and,
accordingly, its net loss is equal to its comprehensive loss.

Enterprise Segments

     In June 1997, the Financial Accounting Standards Board issued Statement No.
131 ("SFAS  131"),  "Disclosure  about  Segments  of an  Enterprise  and Related
Information,"   which   establishes   standards  for  the  way  public  business
enterprises  report  information  in annual  statements  and  interim  financial
reports regarding operating segments,  products and services,  geographic areas,
and major customers. The Company operates in one business segment.

Note 2. Operating Lease Commitments

     The  Company's  lease for its premises in Richmond,  California  expires in
April 2000. Rent expense for the years ending June 30, 1999,  1998, and 1997 was
$39,000,  $147,000, and $157,000,  respectively.  The future minimum payment has
been  prepaid  through  the end of the lease  period and is  included in prepaid
expenses and other current assets.


                                       F-8
<PAGE>


Note 3. Stockholders' Equity

Preferred Stock

     At June 30, 1999, the Company has 2,332,000  shares of Series A convertible
preferred stock issued and outstanding.  The holders of the Series A convertible
preferred stock are entitled to receive annual noncumulative dividends of 8% per
share per annum, when and if declared by the Board of Directors. These dividends
are in  preference to any  declaration  or payment of any dividend on the common
stock of the Company. As of June 30, 1999, no dividends had been declared.

     Each share of Series A  preferred  stock is  convertible,  at the  holder's
option,  subject to  antidilution  provisions,  into one share of common  stock.
Additionally,  each share of the preferred stock will be automatically converted
into one share of common  stock upon the election of more than 50% of the Series
A preferred  stock to convert into common stock.  The holders of preferred stock
are  entitled  to the  number of votes  equal to the  number of shares of common
stock into which their preferred stock is convertible.

     In the event of any liquidation, dissolution, or winding up of the Company,
the holders of the Series A preferred  stock have a  liquidation  preference  of
$0.50 per share,  over  holders of common  stock  plus any  declared  but unpaid
dividends.  After  payment  has been made to the  holders of Series A  preferred
stock, the entire  remaining  assets and funds of the Company legally  available
for  distribution,  if any,  would be  distributed  ratably among the holders of
common stock.

Warrants to Purchase Common Stock

     At June 30, 1999,  warrants to purchase an aggregate of 3,335,906 shares of
common stock are outstanding at a weighted  average  exercise price of $1.34 per
share.  Warrants to  purchase  932,800  shares of common  stock were issued at a
price of $1.00 in connection with a private equity financing  completed in April
1999 and expire in April 2004.  Warrants to purchase  2,020,820 shares of common
stock were issued in  connection  with a private  financing  completed  in March
1998:  1,010,410  of these shares at a price of $0.75  expired in September  and
October  1999;  and 1,010,410 of these shares at a price of $1.50 will expire in
March 2001.  Warrants to purchase 100,000 and 25,000 shares of common stock were
issued in April 1998 at a price per share of $1.25 and $3.00,  respectively,  in
connection  with the  termination  of a licensing  agreement and expire in April
2001.  Warrants to purchase  37,286  shares of common stock were issued  between
April 1990 and July 1991 at a price of $5.60 for licensing rights and consulting
services and have expiration  dates through June 30, 2001.  Warrants to purchase
220,000 shares were issued to the  underwriters of the 1996 public offering at a
price of $3.90 and expire on February 15, 2001. The weighted  average fair value
of warrants issued during fiscal 1999 was $0.38 per share.

Stock Option Plan

     The Company has  elected to follow APB 25 and  related  interpretations  in
accounting for its employee stock option awards because, as discussed below, the
alternative fair value accounting provided under SFAS 123 requires use of option
valuation  models  that were not  developed  for use in valuing  employee  stock
options.  Under APB 25, when the exercise price of the Company's  employee stock
option equals the market price of the underlying  stock on the date of grant, no
compensation expense is recognized.

     The Board of Directors  adopted the  Company's  first stock option plans in
1989. In November  1993, the Board combined the plans and adopted the 1993 Stock
Plan.  The 1993  Stock Plan was  subject  to  amendment  and/or  restatement  in
February  1994,  November  1994,  October 1996,  and November  1997. Two million
shares of common  stock have been  reserved  for  issuance  under the 1993 Stock
Plan.  In general,  options are granted at fair market  value on the date of the
grant, have a term of 10 years and become  exercisable over a period of up to 48
months.

                                      F-9
<PAGE>
     A summary of the Company's stock option activity,  and related  information
for the three years  ended June 30,  1999  follows  (all  repricing  activity is
reflected as cancellations and subsequent grants):

                                                                Weighted Average
                                              Number of Shares      Exercise
                                             Subject to Options      Price
                                             ------------------      -----
     Balance at June 30, 1996 .............        925,545           $4.19
        Options granted ...................        338,304            2.58
        Options canceled ..................        (28,591)           5.61
        Options exercised .................         (2,999)           3.44
                                                ----------           -----
     Balance at June 30, 1997 .............      1,232,259            3.72
        Options granted ...................        844,454            1.66
        Options canceled ..................       (501,632)           4.11
                                                ----------           -----
     Balance at June 30, 1998 .............      1,575,081            2.42
        Options granted ...................        488,500            0.65
        Options canceled ..................       (259,783)           2.51
                                                ----------           -----
     Balance at June 30, 1999 .............      1,803,798            1.93
                                                ==========           =====

     At June 30,  1999,  options  to  purchase  140,392  shares of common  stock
remained available for grant, and options to purchase 1,203,430 shares of common
stock  were  exercisable.   The  weighted  average  exercise  price  of  options
exercisable  at June 30,  1999 was $2.21.  The  weighted  average  fair value of
options  granted  during  1999,  1998 and  1997 was  $0.37,  $1.09,  and  $1.48,
respectively.

     The following table summarizes information concerning currently outstanding
and exercisable options:

                                   Weighted
                                    Average     Weighted                Weighted
     Range of                     Remaining     Average                 Average
     Exercise         Shares      Contractual   Exercise    Shares      Exercise
      Prices       Outstanding   Life (years)    Price    Exercisable    Price
   ------------    -----------   ------------    -----    -----------    -----
   $0.01 - 1.99      964,721         8.85        $0.78       527,097     $0.90
    2.00 - 3.99      826,559         5.62         3.22       665,828      3.20
    4.00 - 5.99        7,768         4.79         4.21         7,755      4.21
    6.00 - 8.00        4,750         5.62         7.42         2,750      8.00
                   ---------                               ---------
                   1,803,798                               1,203,430
                   =========                               =========

     Pro forma information regarding net loss and net loss per share is required
by SFAS 123, which requires that the information be determined as if the Company
had accounted for its employee stock options granted subsequent to June 30, 1995
under  the fair  value  method.  The fair  value of each  option  grant has been
estimated  as of the date of the grant using the  Black-Scholes  option  pricing
model with the following  weighted  average  assumptions used for 1997, 1998 and
1999:  Expected  volatility  calculations based on historical data (.846),  risk
free interest rates based on U.S.  government bonds with maturities equal to the
expected option lives of 6.5 percent,  expected option lives of five years,  and
no dividend yield.

     The  Black-Scholes   option  valuation  model  was  developed  for  use  in
estimating the fair value of traded  options which have no vesting  restrictions
and are fully transferable. In addition, option pricing models require the input
of highly subjective  assumptions  including the expected stock price volatility
and expected life of the option.  Because the Company's  employee  stock options
have characteristics  significantly  different from those of traded options, and
because changes in the subjective  input  assumptions can materially  affect the
fair  value  estimate,  in


                                      F-10
<PAGE>
management's  opinion, the existing models do not necessarily provide a reliable
single measure of the fair value of employee's options.

     For  purposes of pro forma  disclosures,  the  estimated  fair value of the
options is amortized over the options'  vesting period.  The Company's pro forma
information follows (in thousands, except per share amounts):

                                                        Year ended June 30,
                                                  ------------------------------
                                                    1999       1998       1997
                                                    ----       ----       ----
Net loss--as reported ........................... $(3,692)   $(2,173)   $(7,369)
Net loss--pro forma .............................  (3,940)    (2,695)    (7,845)
Basic and diluted net loss per share--as reported   (0.49)     (0.32)     (1.13)
Basic and diluted net loss per share--pro forma .   (0.52)     (0.39)     (1.20)

     The effects on pro forma disclosures of applying SFAS 123 are not likely to
be representative of the effects on pro forma disclosures in future years.

Stock Purchase Plan

     Effective February 1994, the Company established an employee stock purchase
plan under which the employees may purchase  common stock at 85% of the lower of
the share price at the  beginning  or end of a  designated  period.  In November
1996, the amount of shares reserved for issuance under the plan was increased by
50,000 to 100,000.  Under the plan,  24,977 shares remain available for issuance
at June 30, 1999.

Note 4. Income Taxes

     The  Company  uses the  liability  method to account  for  income  taxes as
required by FASB  Statement No. 109,  "Accounting  for Income Taxes." Under this
method,  deferred  tax  assets  and  liabilities  are  determined  based  on the
differences  between financial reporting and tax bases of assets and liabilities
and are  measured  using  enacted tax rules and laws that will be in effect when
the differences are expected to reverse.

     Significant  components of the Company's deferred tax assets (in thousands)
are as follows:

                                                        June 30,
                                                 ---------------------
                                                   1999        1998
                                                   ----        ----
     Net operating loss carryforward .........   $ 11,500    $ 10,000
     Research and development carryforward ...      1,130       1,100
     Capitalized research and development ....        290         500
     Gross deferred tax assets ...............     12,920      11,600
     Valuation allowance .....................    (12,920)    (11,600)
                                                 --------    --------
     Net deferred tax assets .................   $     --    $     --
                                                 ========    ========

     The  valuation  allowance  increased by  $1,320,000  and $790,000 in fiscal
years 1999 and 1998, respectively.

     At  June  30,  1999,   and  1998,   the  Company  had  net  operating  loss
carryforwards  for  federal  and state  income  tax  purposes  of  approximately
$32,000,000 and $12,000,000 respectively, which expire in tax years 1999 through
2018. The Company has federal tax credit carryforwards of approximately $800,000
which expire in tax years 2006 through 2018.

     During the years ended June 30, 1991 and 1994,  the Company  experienced  a
"change in ownership" as defined by Section 382 of the Internal Revenue Code. As
a  result,   utilization   of  the  Company's  net  operating  loss

                                      F-11
<PAGE>

and credit  carryforwards  incurred  prior to the "change in  ownership"  may be
subject to an annual  limitation.  If additional  "changes in ownership"  should
occur,  the  availability  of  the  Company's  net  operating  loss  and  credit
carryforwards  incurred subsequent to the 1994 "change in ownership" may also be
subject  to an annual  limitation  and may  expire  before  ultimately  becoming
available to reduce future income tax liabilities.

Note 5. Notes Payable

     In January 1999,  the Company  received a loan of $200,000  from Merz.  The
loan,  which bears  interest at a rate of 8% per year,  is required to be repaid
from any funds received by NTI upon Merz signing an agreement with a third party
regarding the  development  and marketing of Memantine.  If no such agreement is
completed,  the loan is due and payable on December 31,  2000.  In lieu of NTI's
repayment  of the  principal  and  interest  on the loan,  Merz has the right to
exercise an option at its sole  discretion to receive shares of NTI common stock
at the stock price of $1.20 per share.  As of June 30, 1999,  if Merz  exercises
this  option,  NTI would be  obligated  to issue Merz  173,333  shares of common
stock.

Note 6. Related Party Transaction

     The President and Chief Executive Officer of the Company is a member of the
board of  directors  of a company  that  provided  the Company  with  consulting
services.  Amounts paid to this company for such services  totaled  $409,000 and
$90,000 in the years ended June 30, 1998 and 1997, respectively (none in 1999).

Note 7. Events Subsequent  to Date of Report of Independent Auditors (Unaudited)

     In August  1999,  the Company  entered  into  another  agreement  with Merz
pursuant to which the Company can borrow up to $1.5 million to support the Phase
IIB trial of Memantine  for  neuropathic  pain.  As of September  15, 1999,  the
Company has borrowed  $500,000  pursuant to this  agreement.  The  principal and
interest of the Merz loans are  convertible  into common stock of the Company at
Merz'  option.  The terms of the Merz loan  agreement  also  require that future
license fees, royalties, and other consideration received by the Company for the
licensing of its products and technologies be used to repay the loan.

     In November  1999,  the Company sold  5,238,750  shares of common stock for
gross  proceeds  of   approximately   $4.2  million  in  a  private   financing.
Approximately  $1.23 million of the proceeds were used to repay the  outstanding
principal and interest on loans from Merz.

                                      F-12
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                          (A development stage company)

                            CONDENSED BALANCE SHEETS
                                   (Unaudited)

<TABLE>
<CAPTION>
                                                              September 30,     June 30,
                                                                  1999            1999
                                                              ------------    ------------
<S>                                                           <C>             <C>
ASSETS
Current assets:
   Cash and cash equivalents ..............................   $    546,830    $    201,202
   Prepaid expenses and other .............................         49,391          43,833
                                                              ------------    ------------
     Total current assets .................................        596,221         245,035
   Property and equipment, net ............................          3,468           3,796
                                                              ------------    ------------
                                                              $    599,688    $    248,831
                                                              ============    ============
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Accounts payable and accrued expenses ..................   $    950,081    $    934,839
   Note payable to shareholder ............................      1,200,000         200,000
                                                              ------------    ------------
     Total current liabilities ............................      2,150,081       1,134,839
Stockholders' equity (deficit):
   Convertible preferred stock, $.001 par value,
     5,000,000 shares authorized, 2,332,000 outstanding
     at September 30, 1999 and June 30, 1999 ..............      1,166,000       1,166,000
   Common stock, $.001 par value, 25,000,000 shares
     authorized, 7,943,113 outstanding at September 30,
     1999 and 7,563,575 at June 30, 1999 .................      30,102,092      29,985,352
   Deficit accumulated during development stage ...........    (32,818,485)    (32,037,360)
                                                              ------------    ------------
      Total stockholders' equity (deficit) ................     (1,550,393)       (886,008)
                                                              ------------    ------------
                                                              $    599,688    $    248,831
                                                              ============    ============
</TABLE>

See accompanying notes.

                                      F-13
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                          (A development stage company)

                       CONDENSED STATEMENTS OF OPERATIONS
                                   (Unaudited)

<TABLE>
<CAPTION>
                                          Three months ended           Period from
                                            September 30,            August 27, 1987
                                      --------------------------  (inception) through
                                          1999           1998      September 30, 1999
                                          ----           ----      ------------------
<S>                                   <C>            <C>              <C>
REVENUES
   License ........................   $        --    $        --      $  2,100,000
   Grant ..........................            --             --           149,444
                                      -----------    -----------      ------------
     Total revenue ................            --             --         2,249,444

EXPENSES
   Research and development .......       535,938        440,573        25,604,624
   General and administrative .....       246,707        222,036        11,643,279
                                      -----------    -----------      ------------
     Total expenses ...............       782,645        662,609        37,247,903
Operating loss ....................      (782,645)      (662,609)      (34,998,459)
Interest income ...................         1,521         23,008         2,179,975
                                      -----------    -----------      ------------
NET LOSS ..........................   $  (781,124)   $  (639,601)     $(32,818,484)
                                      ===========    ===========      ============

BASIC AND DILUTED
   NET LOSS PER SHARE .............   $     (0.10)   $     (0.08)
                                      ===========    ===========
   Shares used in basic and diluted
     net loss per share calculation     7,690,088      7,553,699
                                      ===========    ===========
</TABLE>

See accompanying notes.

                                      F-14
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.
                          (A development stage company)

                       CONDENSED STATEMENTS OF CASH FLOWS
                                   (Unaudited)

<TABLE>
<CAPTION>
                                                                               Period from
                                                  Three months ended         August 27, 1987
                                                     September 30,            (inception)
                                                  -------------------           through
                                                  1999           1998       September 30, 1999
                                                  ----           ----       ------------------
<S>                                           <C>            <C>               <C>
OPERATING ACTIVITIES:
Net loss ..................................   $  (781,124)   $  (639,601)      $(32,818,484)
Adjustments to reconcile net loss to
   net cash used in operating activities:
   Depreciation and amortization ..........           328         15,718            638,534
   Issuance of common stock and warrants
     for license rights and services ......            --             --            139,775
Changes in assets and liabilities:
   Prepaid expenses and other .............        (5,558)        (2,268)           (49,391)
   Accounts payable and accrued expenses ..        15,242        (51,364)           950,081
                                              -----------    -----------       ------------
Net cash used in operating activities .....      (771,112)      (677,515)       (31,139,485)
                                              -----------    -----------       ------------

INVESTING ACTIVITIES:
Purchase of investments ...................            --             --        (33,839,678)
Sale of investments .......................            --             --         33,839,678
Purchases of property and equipment, net ..            --             --           (358,940)
Additions to patents and licenses .........            --             --           (283,062)
                                              -----------    -----------       ------------
Net cash used in investing activities .....            --             --           (642,002)

FINANCING ACTIVITIES:
Proceeds of short-term borrowings .........     1,000,000             --          1,435,000
Issuance of common stock, net .............       116,740             --         22,735,235
Issuance of preferred stock, net ..........            --             --          8,158,082
                                              -----------    -----------       ------------
Net cash provided by financing activities .     1,116,740             --         32,328,317
                                              -----------    -----------       ------------
Increase (decrease) in cash and
   cash equivalents .......................       345,628       (677,515)           546,830
Cash and equivalents at beginning of period       201,202      2,020,886                 --
                                              -----------    -----------       ------------
Cash and equivalents at end of period .....   $   546,830    $ 1,343,371       $    546,830
                                              ===========    ===========       ============
</TABLE>

See accompanying notes.

                                      F-15
<PAGE>
                     NOTES TO CONDENSED FINANCIAL STATEMENTS

                                   (UNAUDITED)

                               SEPTEMBER 30, 1999

Note 1 - Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation

     The  accompanying   unaudited  condensed  financial  statements  have  been
prepared in accordance with generally accepted accounting principles for interim
financial  information and with the  instructions to Form 10-QSB and Item 310(b)
of Regulation S-B.  Accordingly,  they do not include all of the information and
footnotes  required by generally  accepted  accounting  principles  for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring  adjustments)  considered  necessary for a fair presentation
have been included. Operating results for the three month period ended September
30, 1999 are not necessarily  indicative of the results that may be expected for
the year ended June 30, 2000.  For further  information,  refer to the financial
statements and footnotes  thereto  included in the Company's Form 10-KSB for the
fiscal year ended June 30, 1999.

     Subsequent to quarter ending, the Company raised approximately $4.2 million
in a private placement and repaid the outstanding principal and interest on loan
from Merz + Co. GmbH & Co.  ("Merz") in the  aggregate  amount of  approximately
$1.23 million. The Company believes that its available cash and cash equivalents
of $547,000 as of September  30, 1999,  combined  with the net proceeds from the
private  placement  subsequent to the quarter  ending,  are adequate to fund its
operations  through this fiscal year ending June 30, 2000. The Company will need
to raise substantial additional capital to fund subsequent operations beyond the
fiscal year ending June 30, 2000.  The Company  intends to seek funding  through
public or private financings, collaborative or other arrangements with corporate
partners, or from other sources. However, there can be no assurance that funding
will be available on favorable  terms from any of these  sources,  if at all. If
such funding is unavailable,  the Company will be required to delay, scale back,
or eliminate one or more of its research,  discovery,  or development  projects,
including  clinical  trials,  and to make future  reductions in  workforce.  The
Company  will  also need to  consider  obtaining  funds  through  entering  into
arrangements with collaborative partners or others which may require the Company
to  relinquish  rights to certain of its  technologies,  product  candidates  or
products   that  the  Company  would  not   otherwise   relinquish.   and  other
restructuring  alternatives,  including  the  license  or sale of certain of its
assets and technology, discontinuing operations or liquidation.

Basic and Diluted Net Loss Per Share

     Net loss  per  share is  presented  under  the  requirements  of  Financial
Accounting Standards Board ("FAS") No. 128, "Earnings per Share." Basic loss per
share is computed  based on the average shares of common stock  outstanding  and
excludes any effects of options, warrants, and convertible securities.

     Potentially dilutive securities such as options,  warrants, and convertible
preferred  stock,  have also been excluded from the  computation  of diluted net
loss per share as their effect is antidilutive.

Note 2 - Notes Payable to Shareholders

     In April  1999,  the  Company  entered  into a  $200,000  convertible  loan
agreement with Merz. At its option,  Merz may convert any amounts borrowed under
the loan  agreement,  plus interest into common stock of NTI at a price of $1.20
per share.  As of September 30, 1999, if Merz  exercises this option to convert,
NTI would be  obligated  to issue Merz  approximately  176,667  shares of common
stock.

                                      F-16
<PAGE>
     In August 1999, the Company entered into a convertible  loan agreement with
Merz pursuant to which the Company can borrow up to $1,500,000.  As of September
30,  1999,  the Company has borrowed  $1,000,000  under this  agreement.  At its
option,  Merz may convert any amounts  borrowed under the loan  agreement,  plus
interest,  into  common  stock  of NTI at a price  of  $1.05  per  share.  As of
September 30, 1999, if Merz  converted  all  outstanding  principal and interest
under the loan,  NTI would be  obligated  to issue  Merz  approximately  957,143
shares of common stock.

Note 3 - Subsequent Events

     In November  1999,  the Company sold  5,238,750  shares of common stock for
gross  proceeds  of   approximately   $4.2  million  in  a  private   financing.
Approximately  $1.23 million of the proceeds were used to repay the  outstanding
principal and interest on loans from Merz.

                  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS
                     ON ACCOUNTING AND FINANCIAL DISCLOSURE

         None.

                                      F-17
<PAGE>
                                     PART II

                   INFORMATION NOT REQUIRED IN THE PROSPECTUS

Item 24. Indemnification of Directors and Officers

     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.  Article VIII,  Sections A, B and C of
the registrant's Restated Certificate of Incorporation provide as follows:

     "A. No  Personal  Liability.  A director  of the  Corporation  shall not be
personally  liable to the Corporation or its  stockholders  for monetary damages
for breach of  fiduciary  duty as  director,  except for  liability  (a) for any
breach  of  the  director's   duty  to  loyalty  to  the   Corporation  and  its
stockholders;  (b) for act or  omissions  not in good  faith  or  which  involve
intentional  misconduct  or knowing  violations of law; (c) under Section 174 of
the Delaware General  Corporation Law; or (d) for any transaction from which the
director derived an improper personal benefit.

     B. Indemnification.  Each person who is 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  Delaware  General
Corporation  Law, 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, except as provided in the
second paragraph hereof, the Corporation shall indemnify any such person seeking
indemnification  in connection with a proceeding (or part thereof)  initiated by
such person 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 shall be a contract right and shall include the right to be paid by
the  Corporation  any expenses  incurred in  defending  any such  proceeding  in
advance of its final  disposition;  provided,  however,  that,  if the  Delaware
General  Corporation  Law 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.

     If a claim under the first paragraph of this section is not paid in full by
the Corporation  within thirty (30) days after a written claim has been received
by the  Corporation,  the claimant may at any time thereafter bring suit against
the  Corporation to recover the unpaid amount of the claim and, if successful in
whole or in part,  the claimant shall be entitled to be paid also the expense of
prosecuting  such claim. It shall be a defense to any such action (other than an
action  brought  to  enforce a claim for  expenses  incurred  in  defending  any
proceeding in advance of its final disposition  where the required  undertaking,
if any is required,  has been tendered to the Corporation) that the claimant has
not met the  standards of conduct which make it  permissible  under the Delaware
General  Corporation  Law for the  Corporation to indemnify the claimant for the
amount  claimed,  but  the  burden  of  proving  such  defense


                                      II-1
<PAGE>

shall be on the Corporation.  Neither the failure of the Corporation  (including
its Board of Directors,  independent legal counsel, or its stockholders) to have
made  a   determination   prior  to  the   commencement   of  such  action  that
indemnification of the claimant is proper in the circumstances because he or she
has met the  applicable  standard of conduct set forth in the  Delaware  General
Corporation Law, nor an actual  determination by the Corporation  (including its
Board of Directors,  independent legal counsel,  or its  stockholders)  that the
claimant has not met such applicable standard of conduct,  shall be a defense to
the action or create a presumption  that the claimant had not met the applicable
standard of conduct.

     The right to  indemnification  and the  payment  of  expenses  incurred  in
defending a  proceeding  in advance of its final  disposition  conferred in this
section  shall not be  exclusive of any other right which any person may have or
hereafter  acquire under any statute,  provision of the Restated  Certificate of
Incorporation, bylaw, agreement, vote of stockholders or disinterested directors
or otherwise.

     C. 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 the Delaware General Corporation Law."

     In addition, Article V of the registrant's Bylaws provides as follows:

     "Section  1.  Actions  Other  Than by or in the  Right of the  Corporation.
Subject to Section 4 of this  Article V, the  corporation  shall  indemnify  any
person  who  was or is a  party  or is  threatened  to be  made a  party  to any
threatened,  pending or completed  action,  suit or  proceeding,  whether civil,
criminal,  administrative  or  investigative  (other than an action by or in the
right of the  corporation)  by reason of the fact that he is or was a  director,
officer,  employee  or agent of the  corporation,  or is or was  serving  at the
request of the corporation as a director,  officer, employee or agent of another
corporation,  partnership,  joint venture,  trust or other  enterprise,  against
expenses  (including  attorneys'  fees),  judgments,  fines and amounts  paid in
settlement  actually  and  reasonably  incurred by him in  connection  with such
action,  suit or  proceeding  if he  acted  in good  faith  and in a  manner  he
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
corporation,  and, with respect to any criminal  action or  proceedings,  had no
reasonable  cause to believe his conduct was unlawful.  The  termination  of any
action, suit or proceeding by judgment, order, settlement, conviction, or upon a
plea of nolo  contendere  or its  equivalent,  shall not,  of  itself,  create a
presumption  that the person did not act in good faith and in a manner  which he
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
corporation,  and,  with  respect  to any  criminal  action or  proceeding,  had
reasonable cause to believe that his conduct was unlawful.

     Section  2.  Actions  Other  Than by or in the  Right  of the  Corporation.
Subject to Section 4 of this  Article V, the  corporation  shall  indemnify  any
person  who  was or is a  party  or is  threatened  to be  made a  party  to any
threatened,  pending  or  completed  action  or suit by or in the  right  of the
corporation  to procure a judgment in its favor by reason of the fact that he is
or was a director,  officer, employee or agent of the corporation,  or is or was
serving at the request of the  corporation as a director,  officer,  employee or
agent  of  another  corporation,  partnership,  joint  venture,  trust  or other
enterprise against expenses (including  attorneys' fees) actually and reasonably
incurred by him in  connection  with the defense or settlement of such action or
suit if he acted in good faith and in a manner he  reasonably  believed to be in
or not  opposed  to the  best  interests  of the  corporation;  except  that  no
indemnification  shall be made in respect  of any  claim,  issue or matter as to
which such  person  shall  have been  adjudged  to be liable to the  corporation
unless  and only to the  extent  that  the  Court of  Chancery  of the  State of
Delaware or the court in which such action or suit was brought  shall  determine
upon application that,  despite the adjudication of liability but in view of all
the circumstances of the case, such person is fairly and reasonably  entitled to
indemnity for such expenses which the Court of Chancery of the State of Delaware
or such other court shall deem proper.

     Section 3. Success on the Merits.  To the extent that any person  described
in  Section  1 or 2 of this  Article  V has been  successful  on the  merits  or
otherwise  in defense of any  action,  suit or  proceeding  referred  to in said
Sections,  or in  defense  of any claim,  issue or matter  therein,  he shall be
indemnified against expenses (including attorneys' fees) actually and reasonably
incurred by him in connection therewith.

                                      II-2
<PAGE>
     Section 4. Specific Authorization. Any indemnification under Section 1 or 2
of this Article V (unless  ordered by a court) shall be made by the  corporation
only  as   authorized   in  the  specific   case  upon  a   determination   that
indemnification  of the  director,  officer,  employee or agent is proper in the
circumstances because he has met the applicable standard of conduct set forth in
Section 1 or 2, as the case may be, of this Article V. Such determination  shall
be made (1) by the board of directors by a majority vote of a quorum  consisting
of directors who were not parties to such action, suit or proceeding,  or (2) if
such  a  quorum  is  not  obtainable,   or,  even  if  obtainable  a  quorum  of
disinterested  directors so directs,  by independent  legal counsel in a written
opinion, or (3) by the stockholders of the corporation.

     Section 5.  Advance  Payment.  Expenses  incurred  in  defending a civil or
criminal action, suit or proceeding may be paid by the corporation in advance of
the final  disposition  of such action,  suit or proceeding as authorized by the
board of  directors  in the manner  provided  for in Section 4 of this Article V
upon receipt of an undertaking  by or on behalf of any person  described in said
Section to repay such amount unless it shall ultimately be determined that he is
entitled to indemnification by the corporation as authorized in this Article V.

     Section 6. Non-exclusivity. The indemnification and advancement of expenses
provided by this Article V shall not be deemed  exclusive of any other rights to
which those seeking  indemnification  or advancement of expenses may be entitled
under any bylaw,  agreement,  vote of stockholders or disinterested directors or
otherwise,  both as to  action  in his  official  capacity  and as to  action in
another  capacity  while holding such office,  and shall continue as to a person
who has ceased to be director, officer, employee or agent of the corporation and
shall inure to the benefit of the heirs,  executors and administrators of such a
person; provided, however, that any repeal or amendment of any of the provisions
of this  Article V shall not  adversely  affect any right or  protection  of any
indemnitee existing at the time of such repeal or amendment.

     Section 7.  INSURANCE.  The board of directors may authorize,  by a vote of
the  majority of the full  board,  the  corporation  to  purchase  and  maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent of the corporation, or is or was serving at the request of the corporation
as a director,  officer, employee or agent of another corporation,  partnership,
joint venture,  trust or other enterprise against any liability asserted against
him and  incurred by him in any such  capacity,  or arising out of his status as
such,  whether  or not the  corporation  would have the power to  indemnify  him
against such liability under the provisions of this Article V.

     Section 8. Severability. If any word, clause or provision of this Article V
or any award made  hereunder  shall for any reason be  determined to be invalid,
the provisions  hereof shall not otherwise be affected  thereby but shall remain
in full force and effect.

     Section 9.  Intent of Article.  The intent of this  Article V is to provide
for  indemnification  to the fullest extent not prohibited by section 145 of the
General  Corporation  Law of  Delaware.  To the extent that such  Section or any
successor section may be amended or supplemented from time to time, this Article
V shall be amended  automatically and construed so as to permit  indemnification
to the fullest extent from time to time not prohibited by law."

                                      II-3
<PAGE>
Item 25. Other Expenses of Issuance and Distribution

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

     Securities and Exchange Commission
        Registration Fee ..................................    $ 6,431
     Legal fees and expenses ..............................    $30,000
     Printing and engraving expenses ......................    $ 3,800
     Accounting fees and expenses .........................    $13,200
     Miscellaneous ........................................    $   569
                                                               -------
              TOTAL: ......................................    $54,000
                                                               =======

Item 26. Recent Sales of Unregistered Securities

     From September through November 1999, NTI raised approximately $4.3 million
through the sale of 1,086,940  units of the  Company's  securities  in a private
placement.  The  purchase  price was $4.00 per unit.  Each unit  consisted  of 5
shares of Common  Stock and one warrant to purchase 2 shares of Common  Stock at
an exercise price of $1.75 per share (exercisable for 5 years). The Company sold
units to  accredited  investors and relied on Rule 506 of Regulation D to exempt
the sale from negotiations under the Securities Act.

     In August 1999, the Company entered into a convertible  loan agreement with
Merz pursuant to which the Company can borrow up to $1,500,000.  As of September
15, 1999, the Company has borrowed $500,000 under this agreement. At its option,
Merz may convert any amounts  borrowed under the loan  agreement,  plus interest
into common  stock of NTI.  If Merz  converted  all  outstanding  principal  and
interest  under the loan,  NTI would be  obligated  to issue Merz  approximately
482,540  shares of common  stock.  The Company  relied upon  Section 4(2) of the
Securities  Act of 1933,  as amended (the  "Securities  Act") to exempt the sale
from registration under the Securities Act.

     In April 1999, NTI raised  $1,166,000  through the sale of 466,400 units of
the Company's  securities in a private  placement.  The purchase price was $2.50
per unit.  Each unit  consisted of 5 shares of Series A preferred  stock and one
warrant to purchase 2 shares of common  stock at an exercise  price of $1.00 per
share  (exercisable  for 5 years).  The Series A preferred  stock is convertible
into common stock on a one-for-one  basis,  subject to antidilution  adjustment,
votes  together  with  the  common  stock  on  an  as-converted  basis  and  has
preferences  with respect to  dividends  and  liquidation.  The Company sold the
units to 31  accredited  investors  and  relied on Rule 506 of  Regulation  D to
exempt the sale from registration under the Securities Act.

     In January  1999,  the Company  entered  into a $200,000  convertible  loan
agreement with Merz. At its option, Merz may convert  outstanding  principal and
interest  into shares of NTI common  stock at a price of $1.20 per share.  As of
June 30, 1999, if Merz exercises this option to convert,  NTI would be obligated
to issue Merz  approximately  173,333 shares of common stock. The Company relied
on Section 4(2) of the Securities Act to exempt the sale from registration under
the Securities Act.

     In March 1998, NTI raised  $555,725  through the sale of 1,010,410 units of
the Company's  securities in a private  placement.  The purchase price was $0.55
per unit.  Each unit consisted of one share of the Company's  common stock,  one
Class A warrant to purchase common stock at an exercise price of $0.75 per share
(exercisable  for 18 months) and one Class B warrant to purchase common stock at
an exercisable price of $1.50 per share  (exercisable for 3 years).  The Company
sold the units to 16 accredited investors and relied on Rule 506 of Regulation D
to exempt the sale from registration under the Securities Act.

                                      II-4
<PAGE>
Item 16. Exhibits

     Exhibit                     Description
     -------                     -----------
        5      Opinion of Heller, Ehrman, White & McAuliffe
       10.1    Form of Subscription Agreement
       10.2    Form of Warrant
       10.3    Warrant to purchase up to 431,000 shares of common stock
       10.4    Letter Agreement with AmeriCal Securities, Inc.
       23.1    Consent of Heller, Ehrman, White & McAuliffe
               (filed as part of Exhibit 5)
       23.2    Consent of Ernst & Young LLP, Independent Auditors

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, and

               (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;

provided,  however,  that  paragraphs  A(1)(i) and  A(1)(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.

     B. 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.

                                      II-5
<PAGE>
                                   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 SB-2 and authorized this Registration  Statement
to be signed on its behalf by the undersigned, in the City of Richmond, State of
California, on this 29th day of December, 1999.

                                     NEUROBIOLOGICAL TECHNOLOGIES, INC.

                                     By: /s/ Paul E. Freiman
                                         ---------------------------------------
                                         Paul E. Freiman
                                         President and Chief Executive Officer


                                POWER OF ATTORNEY

     KNOW ALL  PERSONS  BY THESE  PRESENTS,  that each  person  whose  signature
appears below  constitutes and appoints Paul E. Freiman,  as her or his attorney
in fact, to sign any  supplements or amendments to this  Registration  Statement
(including  post-effective  amendments),  and to file the  same,  with  exhibits
thereto and other  documents in connection  therewith,  with the  Securities and
Exchange   Commission,   hereby   ratifying   and   confirming   all  that  said
attorney-in-fact,  or his substitute or substitutes,  may do or cause to be done
by virtue hereof.

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

/s/ Paul E. Freiman         President, Chief Executive         December 29, 1999
- --------------------------  Officer (Principal Executive
Paul E. Freiman             and Principal Financial Officer
                            and Principal Accounting Officer)
                            and Director

/s/ Abraham E. Cohen        Chairman of the Board              December 29, 1999
- --------------------------
Abraham E. Cohen

/s/ Enoch Callaway          Director                           December 29, 1999
- --------------------------
Enoch Callaway

/s/ Theodore L. Eliot, Jr.  Director                           December 29, 1999
- --------------------------
Theodore L. Eliot, Jr.

/s/ Abraham D. Sofaer       Director                           December 29, 1999
- --------------------------
Abraham D. Sofaer

/s/ John B. Stuppin         Director                           December 29, 1999
- --------------------------
John B. Stuppin

                                      II-6
<PAGE>
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.

                                Index to Exhibits

                                                                    Sequentially
                                                                      Numbered
Exhibit                           Description                           Pages
- -------                           -----------                       ------------

 5        Opinion of Heller, Ehrman, White & McAuliffe
10.1      Form of Subscription Agreement
10.2      Form of Warrant
10.3      Warrant to purchase up to 431,000 shares of common stock
10.4      Letter Agreement with AmeriCal Securities, Inc.
23.1      Consent of Heller, Ehrman, White & McAuliffe
          (filed as part of Exhibit 5)
23.2      Consent of Ernst & Young LLP, Independent Auditors

                                      II-7

                                                                       Exhibit 5

                                December 29, 1999

                                                                      23855-0001

Neurobiological Technologies, Inc.
1387 Marina Way South
Richmond, CA 94804

                       REGISTRATION STATEMENT ON FORM SB-2

Ladies and Gentleman:

     We have acted as counsel to Neurobiological Technologies,  Inc., a Delaware
corporation  (the "Company"),  in connection with the Registration  Statement on
Form SB-2 (the "Registration Statement") which the Company proposes to file with
the Securities  and Exchange  Commission on December 29, 1999 for the purpose of
registering  under the  Securities  Act of 1933,  as amended,  an  aggregate  of
8,039,580 shares of its Common Stock,  par value $.001 (the "Shares"),  of which
5,434,700  Shares have been  issued  pursuant to  Subscription  Agreements  (the
"Agreements")  between and the Company and certain  investors  (individually the
"Investor"  and together the  "Investors"),  2,173,880  Shares are issuable upon
exercise of Common Stock Purchase  Warrants (the "Purchase  Warrants") issued to
the Investors and an additional  431,000  Shares are issuable upon exercise of a
Common  Stock  Purchase  Warrant  issued  in  connection  with the  transactions
contemplated by the Agreements (the "Common Warrant," together with the Purchase
Warrants, the "Warrants").

     We have assumed the authenticity of all records,  documents and instruments
submitted to us as  originals,  the  genuineness  of all  signatures,  the legal
capacity of natural  persons and the conformity to the originals of all records,
documents and instruments submitted to us as copies.

     In rendering our opinion, we have examined the following records, documents
and instruments:

     (a)  The  Certificate  of  Incorporation  of the Company,  certified by the
          Delaware  Secretary of State as of November 29, 1999, and certified to
          us by an officer of the Company as being complete and in full force as
          of the date of this opinion;

     (b)  The Bylaws of the Company certified to us by an officer of the Company
          as being  complete and in full force and effect as of the date of this
          opinion;

     (c)  A  Certificate  of an officer of the  Company  (i)  attaching  records
          certified to us as constituting all records of proceedings and actions
          of the  Board of  Directors,  including  any  committee  thereof,  and
          stockholders  of  the  Company   relating  to  the  Shares,   and  the
          Registration  Statement,  and (ii)  certifying  as to certain  factual
          matters;

     (d)  The Registration Statement;

     (e)  The Warrants;

     (f)  The Agreements; and


                                      II-8
<PAGE>

     (g)  A  letter  from  Chase  Mellon  Shareholder  Services,  the  Company's
          transfer agent, dated December 28, 1999, as to the number of shares of
          the Company's Common Stock that were outstanding on December 27, 1999.

     This  opinion  is  limited  to the  federal  laws of the  United  States of
America, the laws of the State of California, and the General Corporation Law of
the State of Delaware, as to corporate formalities,  and we disclaim any opinion
as to the laws of any other jurisdiction.  We further disclaim any opinion as to
any other statute, rule, regulation,  ordinance,  order or other promulgation of
any other  jurisdiction or any regional or local  governmental body or as to any
related judicial or administrative opinion.

     Based upon the foregoing and our examination of such questions of law as we
have  deemed  necessary  or  appropriate  for the purpose of this  opinion,  and
assuming  that (i) the  Registration  Statement  becomes and  remains  effective
during  the  period  when the  Shares  are  offered  and  issued,  (ii) the full
consideration  stated  in the  Agreements  and the  Warrants  for each  Share is
received and that such  consideration  in respect of each Share includes payment
of cash or other lawful  consideration  at least equal to the par value thereof,
(iii) appropriate  certificates evidencing the Shares are executed and delivered
by the Company, and (iv) all applicable securities laws are complied with, it is
our  opinion  that when  issued by the  Company,  in the manner  provided in the
Agreements,  the Warrants  and the  Registration  Statement,  the Shares will be
legally issued, fully paid and nonassessable.

     This  opinion  is  rendered  to you in  connection  with  the  Registration
Statement and is solely for your benefit. This opinion may not be relied upon by
you for any other purpose, or relied upon by any other person, firm, corporation
or other entity for any purpose,  without our prior written consent. We disclaim
any  obligation to advise you of any change of law that occurs,  or any facts of
which we may become aware, after the date of this opinion.

     We hereby  consent  to the  filing of this  opinion  as an  exhibit  to the
Registration Statement.

                                     Very truly yours,

                                     /s/ Heller Ehrman White & McAuliffe


                                      II-9


THE SECURITIES  OFFERED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED,  OR QUALIFIED UNDER  APPLICABLE  STATE  SECURITIES LAWS AND
HAVE BEEN TAKEN FOR INVESTMENT  PURPOSES ONLY AND NOT WITH A VIEW TO OR FOR SALE
IN CONNECTION WITH ANY DISTRIBUTION  THEREOF.  THEY MAY NOT BE SOLD OR OTHERWISE
TRANSFERRED  IN THE  ABSENCE OF SUCH  REGISTRATION  AND  QUALIFICATION  WITHOUT,
EXCEPT  UNDER  CERTAIN  SPECIFIC  LIMITED  CIRCUMSTANCES,  AN OPINION OF COUNSEL
REASONABLY  SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION AND QUALIFICATION
ARE NOT REQUIRED.

THE SALE OF THE  SECURITIES  THAT ARE THE SUBJECT OF THIS AGREEMENT HAS NOT BEEN
QUALIFIED WITH THE  COMMISSIONER  OF CORPORATIONS OF THE STATE OF CALIFORNIA AND
THE  ISSUANCE  OF THE  SECURITIES  OR THE  PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION  THEREFOR PRIOR TO THE QUALIFICATION IS UNLAWFUL,  UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM  QUALIFICATION BY SECTION 25100,  25102 OR 25105 OF
THE  CALIFORNIA  CORPORATIONS  CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON THE QUALIFICATION BEING OBTAINED, UNLESS THE SALE
IS SO EXEMPT.

                             SUBSCRIPTION AGREEMENT

Neurobiological Technologies, Inc.
1387 Marina Way South
Richmond, California 94804
Attn: Chief Executive Officer

Gentlemen:

1. Subscription.

     (a) The undersigned is hereby purchasing from Neurobiological Technologies,
Inc., a Delaware  corporation (the "Company"),  _____ units (the "Units"),  each
consisting  of (i) five shares (the  "Shares") of the  Company's  Common  Stock,
$0.001 par value (the "Common Stock"); and (ii) a Common Stock Purchase Warrant,
in the form of  EXHIBIT A (the  "Warrant"),  to  purchase  two  shares of Common
Stock.  The Shares and the Warrants are referred to herein as the  "Securities."
The  undersigned  understands  and agrees that the Company is only  offering the
Shares and the Warrants together as a Unit, and that the Shares and Warrants may
only be purchased as a Unit.  The purchase price of each Unit shall be $4.00 for
an aggregate purchase price of $________ (the "Purchase Price").
<PAGE>
     (b) This  subscription  is submitted to the  undersigned in accordance with
and subject to the terms and conditions described in this Subscription Agreement
relating to the offering of up to ________ Units; with a minimum subscription of
687,500 Units  required to consummate  the  offering.  The Company  reserves the
right to amend,  modify and/or  withdraw all or a portion of the offering and to
increase or decrease the number of Units to be offered hereby.

     2. (a) PURCHASE PRICE.  The  undersigned  has tendered,  together with this
Subscription  Agreement,  the  Purchase  Price by  electronic  wire  transfer in
accordance with the following instructions:

     Bank Name                     Wells Fargo Bank
     Bank Address:                 420 Montgomery Street, 5th Floor
                                   San Francisco, CA 94104
     ABA#:                         121000248
     WFB Account #:                4159 427 152

     For further credit to Acct
     Neurobiological Technologies, Inc.
     Attn: Alice Byrd

or  by  delivery  of  a  bank  check  or   certified   check  made   payable  to
Neurobiological  Technologies,  Inc.  against  delivery to the  undersigned of a
certificate representing the Securities.


          (b) Closing.  The closing of the sale and  purchase of the  Securities
shall occur on the date hereof or on such other date as shall be selected by the
Company  (the  "Closing  Date").  The  Securities   subscribed  for  under  this
Subscription  Agreement  shall  not be  deemed  issued  to,  or  owned  by,  the
undersigned until the Closing Date has occurred.

          (c) Acceptance or Rejection.  The  undersigned  understands and agrees
that the Company reserves the right, in its absolute discretion,  to reject this
subscription  for the  Securities  in whole or in part, at any time prior to the
Closing  Date. In the event of rejection of this  subscription,  or in the event
the sale of the  Securities  is not  consummated  for any reason  within 20 days
after the date of this Subscription  Agreement (in which event this Subscription
Agreement shall be deemed to be rejected), the Company shall cause the return to
the undersigned of this  Subscription  Agreement and the Purchase Price tendered
by the undersigned,  and this Subscription  Agreement  thereafter shall be of no
force or effect.

                                       2
<PAGE>
     3. Representations and Warranties of the Company. To induce the undersigned
to enter into this  Subscription  Agreement and to purchase the Securities,  the
Company hereby represents and warrants to the undersigned the following:

          (a)  Organization,  Standing,  Etc. The Company is a corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware and has the requisite corporate power and authority to own or lease its
properties  and to carry  on its  business  as it is now  being  conducted.  The
Company has the requisite  corporate power and authority to issue the Securities
and to perform its obligations under this Subscription Agreement.

          (b) Valid Issuance. The Securities, when issued and delivered pursuant
to the terms of this Subscription  Agreement,  will be duly authorized,  validly
issued,  fully paid and nonassessable.  The shares of Common Stock issuable upon
exercise  of  the  Warrants  (the  "Underlying  Securities"),  when  issued  and
delivered  pursuant  to the  terms  of the  Warrants,  will be duly  authorized,
validly issued, fully paid and nonassessable.

          (c) Corporate Acts and Proceedings.  This  Subscription  Agreement has
been duly authorized by all necessary corporate action on behalf of the Company,
has been duly executed and delivered by an authorized officer of the Company, is
a valid and binding  agreement  on the part of the  Company  and is  enforceable
against  the  Company  in  accordance  with its  terms.  All  corporate  actions
necessary to the authorization,  creation,  issuance and delivery of the Shares,
Warrants and the Underlying Securities have been taken by the Company.

          (d) Compliance With Applicable Laws and Other Instruments. Neither the
execution  nor  delivery  of, nor the  performance  of or  compliance  with this
Subscription  Agreement,  the  issuance  of the  Shares,  the  Warrants  and the
Underlying  Securities nor the  consummation  of the  transactions  contemplated
hereby will, with or without the giving of notice or passage of time,  result in
any breach of, or constitute a default under, or result in the imposition of any
lien or encumbrance  upon any asset or property of the Company  pursuant to, any
material agreement or other material  instrument to which the Company is a party
or by which it or any of its properties,  assets or rights is bound or affected,
and will not violate the Company's Certificate of Incorporation or Bylaws.

          (e) Securities  Laws.  Based in part upon the  representations  of the
undersigned in Section 5, no consents, authorization,  approval, permit or order
of or filing with any  governmental  or regulatory  authority is required  under
current laws and  regulations  in connection  with the execution and delivery of
this  Subscription  Agreement

                                       3
<PAGE>
or the offer,  issuance,  sale or delivery of the Shares,  the  Warrants and the
Underlying Securities,  other than the filing of a Form D pursuant to Regulation
D under the Securities  Act of 1933 (the "Act"),  the filing of a notice on Form
25102(f) with the State of California  and a similar notice with any other state
whose laws require  such filing,  and the  qualification  thereof,  if required,
under  other  applicable  state  laws  which  qualification  has been or will be
effected  as  a  condition  of  this   transaction.   Under  the   circumstances
contemplated  by this  Subscription  Agreement,  the offer,  issuance,  sale and
delivery of the Shares,  the Warrants and the  Underlying  Securities  will not,
under  current laws and  regulations,  require  compliance  with the  prospectus
delivery or registration requirements of the Act.

          (f) Capital Stock.  Except as set forth on SCHEDULE A attached hereto,
the authorized and issued capital stock of the Company is correctly set forth in
the audited  financial  statements of the Company for the fiscal year ended June
30, 1999. All of the outstanding  shares of the Company's capital stock are duly
authorized  and validly issued and are fully paid and  nonassessable.  Except as
described  in the  Company's  Annual  Report on Form  10-KSB for the fiscal year
ended June 30, 1999 as filed with the  Securities and Exchange  Commission  (the
"Commission"),  or as  set  forth  on  SCHEDULE  A,  there  are  no  outstanding
subscriptions,   options,  warrants,  calls,  contracts,  demands,  commitments,
convertible  securities or other  agreements or arrangements of any character or
nature whatever,  other than this Subscription Agreement,  pursuant to which the
Company  is  obligated  to issue  any  securities  of any kind  representing  an
ownership interest in the Company.

          (g) Company Sec Filings. The Company has furnished,  or made available
through the EDGAR Internet web site of the Commission,  to the undersigned  true
and  complete  copies of its Annual  Report on Form  10-KSB for the fiscal  year
ended June 30, 1999 as filed with the Commission  (the "SEC Filing").  As of its
filing  date,  the  SEC  Filing  complied  in all  material  respects  with  the
applicable  requirements  of the Exchange Act of 1934, as amended (the "Exchange
Act"),  and the SEC Filing  contained no untrue  statement of a material fact or
omitted to state a material fact  required to be stated  therein or necessary in
order to make the  statements  made therein,  in the light of the  circumstances
under which they were made, not misleading.

          (h)  Repayment  of Merz Loans.  The Company has given notice to Merz +
Co. GmbH & Co.  ("Merz") that it will repay  outstanding  loans from Merz in the
aggregate principal amount of $1,200,000 plus accrued interest from the proceeds
of this offering.


                                       4
<PAGE>
     4. Transfer Restrictions.

          (a) The  undersigned  realizes  that the Shares,  the Warrants and the
Underlying  Securities are not registered under the Act, or any foreign or state
securities  laws. The undersigned  agrees that the Shares,  the Warrants and the
Underlying Securities will not be sold, offered for sale, pledged, hypothecated,
or otherwise transferred (collectively,  a "Transfer") except in compliance with
the Act, if applicable,  and applicable  foreign and state  securities laws. The
undersigned  understands that the undersigned can only Transfer the Shares,  the
Warrants and the Underlying Securities pursuant to registration under the Act or
pursuant to an exemption therefrom. The undersigned understands that to Transfer
the Shares,  the  Warrants  and the  Underlying  Securities  may require in some
jurisdictions  specific  approval  by the  appropriate  governmental  agency  or
commission in such jurisdiction.

          (b) To  enable  the  Company  to  enforce  the  transfer  restrictions
contained in Section 4(a),  the  undersigned  hereby  consents to the placing of
legends upon,  and  stop-transfer  orders with the transfer  agent of the Common
Stock with respect to, the Shares, the Warrants and the Underlying Securities.

     5.  Representations  and  Warranties.  To induce the  Company to accept the
undersigned's  subscription,  the undersigned  hereby represents and warrants to
the Company that:

          (a) the undersigned, if an individual, has reached the age of majority
in the  jurisdiction  in which he/she  resides,  is a bona fide  resident of the
jurisdiction  contained in the address set forth on the  signature  page of this
Subscription  Agreement;  is  legally  competent  to execute  this  Subscription
Agreement; and does not intend to change residence to another jurisdiction;

          (b) the undersigned,  if an entity, is duly authorized to execute this
Subscription  Agreement  and this  Subscription  Agreement,  when  executed  and
delivered  by the  undersigned,  will  constitute  a legal,  valid,  and binding
obligation enforceable against the undersigned in accordance with its terms; and
the execution,  delivery, and performance of this Subscription Agreement and the
consummation of the transactions  contemplated  hereby have been duly authorized
by all  requisite  corporate  or  other  necessary  action  on the  part  of the
undersigned;

          (c) the Shares,  Warrants and  Underlying  Securities  subscribed  for
hereby are being acquired by the undersigned  for investment  purposes only, for
the  account  of the  undersigned  and  not  with  the  view  to any  resale  or
distribution  thereof,  and the  undersigned is not  participating,  directly or
indirectly, in a distribution of such Shares, Warrants and Underlying Securities
and will not  take,  or cause to be  taken,  any  action  that  would  cause the
undersigned  to  be  deemed  an  "underwriter"  of  such  Shares,  Warrants  and
Underlying Securities as defined in Section 2(11) of the Act;

                                       5
<PAGE>
          (d) the undersigned has had access to all materials,  books,  records,
documents,  and  information  relating  to the  Company,  including  (i) the SEC
Filings  and (ii) the Proxy  Statement  relating  to the  Company's  1998 annual
meeting;

          (e) the undersigned  acknowledges  and understands  that investment in
the Securities involves a high degree of risk,  including without limitation the
risks set forth in the SEC Filing  under the  captions  "Risks  Associated  with
Product  Development,"   "Management's  Discussion  and  Analysis  of  Financial
Condition  and Results of  Operations,"  and  elsewhere  in the  Company's  Form
10-KSB;

          (f) the undersigned acknowledges that the undersigned has been offered
an  opportunity to ask questions of, and receive  answers from,  officers of the
Company  concerning  all material  aspects of the Company and its business,  and
that any request for such information has been fully complied with to the extent
the Company  possesses such  information or can acquire it without  unreasonable
effort or expense;

          (g) the undersigned has such knowledge and experience in financial and
business  matters that the  undersigned  is capable of evaluating the merits and
risks of an  investment  in the  Company  and can afford a complete  loss of his
investment in the Company;

          (h) the  undersigned  has never been notified by the Internal  Revenue
Service that the undersigned is subject to backup withholding;

          (i) the undersigned  recognizes that no governmental agency has passed
upon the issuance of the Shares or made any finding or  determination  as to the
fairness of this investment;

          (j) if the  undersigned is purchasing  the  Securities  subscribed for
hereby in a  representative  or  fiduciary  capacity,  the  representations  and
warranties  contained  herein shall be deemed to have been made on behalf of the
person or persons for whom such Securities are being purchased;

          (k)  the  undersigned  has  not  entered  into  any  agreement  to pay
commissions  to  any  persons  with  respect  to the  purchase  or  sale  of the
Securities,  except  commissions for which the undersigned  will be responsible;
and

          (l) the  undersigned  is an  "Accredited  Investor"  as  that  term is
defined  in  Section   501(a)  of  Regulation  D  promulgated   under  the  Act.
Specifically the undersigned is (check appropriate item(s)):


                                       6
<PAGE>
[ ]            (i) a bank as defined in Section 3(a)(2) of the Act, or a savings
          and loan  association  or other  institution  as  defined  in  Section
          3(a)(5)(A)  of the Act whether  acting in its  individual or fiduciary
          capacity;  a broker or dealer registered pursuant to Section 15 of the
          Exchange Act; an insurance  company as defined in Section 2(13) of the
          Act; an investment company registered under the Investment Company Act
          of 1940 or a  business  development  company  as  defined  in  Section
          2(a)(48) of that Act; a Small Business  Investment Company licensed by
          the U.S. Small Business  Administration under Section 301(c) or (d) of
          the Small  Business  Investment  Act of 1958; a plan  established  and
          maintained by a state,  its political  subdivisions,  or any agency or
          instrumentality  of a state  or its  political  subdivisions,  for the
          benefit of its  employees,  if such plan has total assets in excess of
          $5,000,000,  an  employee  benefit  plan  within  the  meaning  of the
          Employment  Retirement  Income Security Act of 1974, if the investment
          decision is made by a plan  fiduciary,  as defined in Section 3(21) of
          such  act,  which is  either  a bank,  savings  and loan  association,
          insurance  company,  or  registered  investment  advisor,  or  if  the
          employee benefit plan has total assets in excess of $5,000,000,  or if
          a self-directed plan, with investment decisions made solely by persons
          that are Accredited Investors;

[ ]            (ii) a private business development company as defined in Section
          202(a)(22) of the Investment Advisers Act of 1940;

[ ]            (iii) an  organization  described  in  Section  501(c)(3)  of the
          Internal Revenue Code of 1986, as amended, corporation,  Massachusetts
          or similar business trust, or partnership, not formed for the specific
          purpose  of  acquiring   Shares,   with  total  assets  in  excess  of
          $5,000,000;

[ ]            (iv) a director or executive officer of the Company;

[ ]            (v) a natural  person whose  individual  net worth,  or joint net
          worth with that  person's  spouse,  at the time of his or her purchase
          exceeds $1,000,000;

[ ]            (vi) a natural person who had an individual income (not including
          his or her spouse's  income) in excess of $200,000 in 1997 and 1998 or
          joint  income  with his or her spouse in excess of $300,000 in each of
          those years and has a reasonable  expectation  of reaching such income
          level in 1999;

[ ]            (vii) a trust,  with total  assets in excess of  $5,000,000,  not
          formed for the specific purpose of acquiring Shares, whose purchase is
          directed by a person having such knowledge and experience in financial
          and  business  matters  that he or she is  capable of  evaluating  the
          merits and risks entailed in the purchase of Shares; or


                                       7
<PAGE>
[ ]            (viii) an entity in which all of the equity owners are Accredited
          Investors.  (If this  alternative  is checked,  the  undersigned  must
          identify  each  equity  owner and  provide  statements  signed by each
          demonstrating how each is qualified as an Accredited Investor.)


     6.  Registration  of Shares.  On or before a date that is 30 days after the
Closing Date, the Company shall file with the Securities and Exchange Commission
a registration  statement on Form S-3 to register for resale pursuant to Section
5 of the Act the Shares  and the  Underlying  Securities  sold and issued to the
undersigned in accordance with this Subscription Agreement. The Company will use
its best efforts to cause such registration  statement to be declared  effective
and to remain  available  for the  resale of such  shares and  securities  for a
period of 12 months from the effective date, provided, however, that the Company
may  suspend the use of the  prospectus  constituting  part of the  registration
statement  for up to two  periods  of 60 days  each  in the  event  the  Company
determines, in its sole judgment, that such prospectus is incomplete, inaccurate
or omits to  disclose  any  information  required to be  included  therein,  and
provided further,  that the period during which the registration  statement will
remain  available  shall be extended by any period in which the Company  invoked
its  right  to  suspend  the use of the  prospectus.  In the  event  of any such
suspension,  the Company will promptly notify the undersigned  subscriber of the
suspension  and use its best  efforts to amend or  supplement  the  registration
statement,  and the prospectus  constituting a part thereof,  within said 60-day
period to enable  the use of the  amended  or  supplemented  prospectus  for the
resale of the shares and securities  covered  thereby.  The Company will provide
the  undersigned  with  such  copies  of  the  prospectus,  or  any  amended  or
supplemented  prospectus,   as  the  undersigned  may  reasonably  request.  The
undersigned  agrees to cooperate  with the Company in  preparing  and filing the
aforesaid registration  statement,  and any amendment or supplement thereto, and
to provide the Company with such  information and  documentation  as the Company
may  reasonably  request.  Notwithstanding  anything to the  contrary  contained
herein,  the Company shall not be obligated to maintain the effectiveness of any
registration  statement,  or to update,  amend or supplement  such  registration
statement or any prospectus  constituting a part thereof,  after the undersigned
shall become eligible to sell all of his shares, or remaining shares, under Rule
144 of the Act within any three-month period without volume limitations.

     7.  Further  Documents.  The  undersigned  agrees that it will execute such
other  documents  as may be  necessary  or  desirable  in  connection  with  the
transactions contemplated hereby.

     8.  Modification.  Neither this  Subscription  Agreement nor any provisions
hereof  shall be  waived,  modified,  discharged,  or  terminated  except  by an
instrument  in  writing  signed  by the  party  against  whom any  such  waiver,
modification, discharge, or termination is sought.


                                       8
<PAGE>
     9. Notices.  Any notice or other communication  required or permitted to be
given  hereunder  shall be in  writing  and shall be mailed by  certified  mail,
return  receipt  requested,  or by  Federal  Express,  Express  Mail or  similar
overnight  delivery or courier  service and delivered (in person or by telecopy,
telex or similar  telecommunications  equipment) against receipt to the party to

whom it is to be given,  (i) if to the Company,  at its address set forth on the
first page hereof,  (ii) if to the undersigned,  at its address set forth on the
signature  page hereto,  or (iii) in either case,  to such other  address as the
party shall have furnished in writing in accordance  with the provisions of this
Section 9. Notice to the estate of any party shall be sufficient if addressed to
the party as provided in this Section.  Any notice or other  communication given
by certified  mail shall be deemed given at the time of  certification  thereof,
except for a notice  changing a party's  address  which shall be deemed given at
the time of receipt  thereof.  Any notice given by other means permitted by this
Section 9 shall be deemed given at the time of receipt thereof.

     10. Counterparts.  This Subscription  Agreement may be executed through the
use of separate signature pages or in any number of counterparts,  and each such
counterpart  shall,  for all purposes,  constitute one agreement  binding on all
parties,  notwithstanding  that  all  parties  are not  signatories  to the same
counterpart.

     11.  Entire  Agreement.  This  Subscription  Agreement  contains the entire
agreement of the parties with respect to the subject matter hereof and there are
not representations,  covenants or other agreements except as stated or referred
to herein.

     12. Severability. Each provision of this Subscription Agreement is intended
to be severable from every other provision,  and the invalidity or illegality of
any portion  hereof shall not affect the  validity or legality of the  remainder
hereof.

     13.  Assignability.  This  Subscription  Agreement is not  transferable  or
assignable by the undersigned.

     14.  Applicable  Law. This  Subscription  Agreement has been negotiated and
consummated in the State of California and shall be governed by and construed in
accordance  with the laws of the State of  California,  without giving effect to
conflict of laws.

     15. Choice of  Jurisdiction.  Any action or proceeding  arising,  directly,
indirectly,  or otherwise,  in connection with, out of or from this Subscription
Agreement, any breach hereof or any transaction covered hereby shall be resolved
within San Francisco, California. Accordingly, the parties consent and submit to
the  jurisdiction  of the United States  federal and state courts located within
San Francisco, California.

     16.  Taxpayer   Identification   Number.  The  undersigned  verifies  under
penalties of perjury that any Taxpayer  Identification Number or Social Security
Number shown on the signature page hereto is true, correct, and complete.

     17.  Pronouns.  Any  personal  pronoun  shall  be  considered  to mean  the
corresponding  masculine,  feminine,  or neuter personal pronoun, as the context
requires.

                                       9
<PAGE>
     IN  WITNESS  WHEREOF,   the  undersigned  has  executed  this  Subscription
Agreement this __ day of ___________, 1999.

Number of Units Subscribed for: ________ Units

INDIVIDUAL SUBSCRIBER:                      ENTITY SUBSCRIBER:

- ------------------------------------        ------------------------------------
(Signature of Subscriber)                   (Print Name of Subscriber)

                                            By:
- ------------------------------------        ------------------------------------
(Typed or Printed Name)                     Name:
                                                  ------------------------------
                                            Title:
                                                   -----------------------------

- ------------------------------------        ------------------------------------
(Residence Address)                         (Address)

- ------------------------------------        ------------------------------------
(City, State and Zip Code)                  (City, State and Zip Code)

- ------------------------------------        ------------------------------------
(Telephone Number)                          (Telephone Number)

- ------------------------------------        ------------------------------------
(Telecopier Number)                         (Telecopier Number)

- ------------------------------------        ------------------------------------
(Tax I.D. or Social Security Number)        (Tax I.D. or Social Security Number)


ACCEPTED:

NEUROBIOLOGICAL TECHNOLOGIES, INC.


By:
    --------------------------------
Name:  Paul Freiman
Title: Chief Executive Officer and President

Date:  _________, 1999

                                       10


                                    EXHIBIT A

                                                                  WARRANT NO. __

                        WARRANT TO PURCHASE A MAXIMUM OF
                       _________ SHARES OF COMMON STOCK OF
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.

                          (Void after __________, 2004)

THESE  SECURITIES HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED.  THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE
ABSENCE OF A  REGISTRATION  STATEMENT IN EFFECT WITH  RESPECT TO THE  SECURITIES
UNDER SUCH ACT OR AN OPINION OF COUNSEL  SATISFACTORY  TO THE COMPANY  THAT SUCH
REGISTRATION IS NOT REQUIRED OR UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT.

THIS WARRANT AND THE SHARES PURCHASABLE HEREUNDER ARE SUBJECT TO RESTRICTIONS ON
TRANSFER AS SET FORTH HEREIN.


     This certifies that  _____________  (the "Holder"),  or assigns,  for value
received,  is entitled to purchase from  Neurobiological  Technologies,  Inc., a
Delaware  corporation (the  "Company"),  subject to the terms set forth below, a
maximum of __________ fully paid and nonassessable shares (subject to adjustment
as provided  herein) of the Company's  Common Stock (the  "Warrant  Shares") for
cash at a price of $1.75 per share (the "Exercise Price") (subject to adjustment
as provided  herein) at any time or from time to time up to and  including  5:00
p.m.  (California  Time)  on  _________,  2004,  (the  "Expiration  Date")  upon
surrender to the Company at its principal  office (or at such other  location as
the Company may advise the Holder in writing) of this Warrant properly  endorsed
with the Form of Subscription attached hereto duly filled in and signed and upon
payment in cash or by check of the  aggregate  Exercise  Price for the number of
shares for which this Warrant is being  exercised  determined in accordance with
the provisions  hereof.  The Exercise Price is subject to adjustment as provided
in Section 3 of this  Warrant.  This Warrant is issued  subject to the following
terms and conditions:

     1.  Exercise,  Issuance  of  Certificates,  Reduction  in Number of Warrant
Shares.

          1.1 General.  This Warrant is  exercisable at the option of the Holder
of record hereof on or prior to the Expiration Date, at any time or from time to
<PAGE>
time following its issuance,  for all or any part of the Warrant Shares (but not
for a fraction of a share) which may be purchased hereunder,  as that number may
be adjusted  pursuant to Section 3 of this Warrant.  The Company agrees that the
Warrant Shares purchased under this Warrant shall be and are deemed to be issued
to the Holder hereof as the record owner of such Warrant  Shares as of the close
of  business  on the date on which this  Warrant  shall  have been  surrendered,
properly  endorsed,  the completed and executed Form of Subscription  delivered,
and payment made for such Warrant Shares. Certificates for the Warrant Shares so
purchased,  together  with any other  securities or property to which the Holder
hereof is entitled upon such  exercise,  shall be delivered to the Holder hereof
by the Company at the Company's  expense not later than 10 days after the rights
represented  by this  Warrant have been so  exercised.  In case of a purchase of
less than all the Warrant Shares which may be purchased under this Warrant,  the
Company  shall cancel this Warrant and execute and deliver to the Holder  hereof
within a reasonable time a new Warrant or Warrants of like tenor for the balance
of the  Warrant  Shares  purchasable  under the  Warrant  surrendered  upon such
purchase. Each stock certificate so delivered shall be registered in the name of
such Holder.

          1.2 Net Issue  Exercise of  Warrant.  Notwithstanding  any  provisions
herein to the contrary, if the fair market value of one share of Common Stock is
greater than the Exercise Price (at the date of calculation as set forth below),
in lieu of exercising this Warrant for cash,  Holder may elect to receive shares
of Common Stock equal to the value (as determined below) of this Warrant (or the
portion  thereof  being  canceled) by surrender of this Warrant at the principal
office of the Company  together with the properly  endorsed Form of Subscription
in which  event  the  Company  shall  issue to the  Holder a number of shares of
Common Stock computed using the following formula:

                   X = Y (A-B)
                       -------
                          A

         Where     X = the number of shares of Common Stock to be issued
                       to Holder;

                   Y = the number of shares of Common Stock purchasable
                       under the Warrant or, if only a portion of the
                       Warrant is being exercised, the portion of the
                       Warrant being canceled (at the date of such
                       calculation);

                   A = the fair market value of one share of the
                       Company's Common Stock (at the date of such
                       calculation); and

                   B = Exercise Price (as adjusted to the date of such
                       calculation).

For  purposes of the above calculation,  the fair market  value of one  share of
Common  Stock shall be the  average of the closing bid  and asked  prices of the
Common Stock quoted in the over-the-counter  market summary or the last reported
sale  price of  the Common Stock  or the closing  price  quoted  on  the  Nasdaq

                                       2
<PAGE>
National  Market  System or on any exchange on which the Common Stock is listed,
whichever is  applicable,  as published in The Wall Street  Journal for the five
trading days prior to the date of determination of fair market value.

     2.  Shares to be Fully  Paid.  The  Company  covenants  and agrees that all
Warrant  Shares,  will,  upon  issuance  and,  if  applicable,  payment  of  the
applicable  Exercise Price, be duly authorized,  validly issued,  fully paid and
nonassessable,  and free of all liens and encumbrances,  except for restrictions
on transfer provided for herein or under applicable federal and state securities
laws.

     3.  Adjustment of Exercise  Price and Number of Shares.  The Exercise Price
and the total number of Warrant Shares shall be subject to adjustment  from time
to time upon the occurrence of certain events  described in this Section 3. Upon
each  adjustment  of the  Exercise  Price,  the  Holder  of this  Warrant  shall
thereafter be entitled to purchase,  at the Exercise  Price  resulting from such
adjustment,  the number of shares  obtained by multiplying the Exercise Price in
effect  immediately prior to such adjustment by the number of shares purchasable
pursuant hereto  immediately prior to such adjustment,  and dividing the product
thereof by the Exercise Price resulting from such adjustment.

          3.1  Subdivision or Combination of Stock. In case the Company shall at
any time subdivide its outstanding  shares of Common Stock into a greater number
of shares,  the Exercise Price in effect  immediately  prior to such subdivision
shall be  proportionately  reduced  and the  number of Warrant  Shares  issuable
hereunder  proportionately  increased,  and conversely,  in case the outstanding
shares of the  Common  Stock of the  Company  shall be  combined  into a smaller
number  of  shares,  the  Exercise  Price in  effect  immediately  prior to such
combination shall be proportionately  increased and the number of Warrant Shares
issuable hereunder proportionately decreased.

          3.2 Reclassification.  If any reclassification of the capital stock of
the Company or any  reorganization,  consolidation,  merger, or any sale, lease,
license,  exchange or other transfer (in one  transaction or a series of related
transactions) of all or substantially  all, of the business and/or assets of the
Company  (the  "Reclassification  Events")  shall be effected in such a way that
holders of Common Stock shall be entitled to receive stock, securities, or other
assets or property,  then, as a condition of such Reclassification  Event lawful
and adequate provisions shall be made whereby the Holder hereof shall thereafter
have the right to purchase and receive (in lieu of the shares of Common Stock of
the Company immediately theretofore purchasable and receivable upon the exercise


                                       3
<PAGE>
of the rights  represented  hereby) such shares of stock,  securities,  or other
assets or  property as may be issued or payable  with  respect to or in exchange
for a number of  outstanding  shares of such Common Stock equal to the number of
shares of such stock immediately theretofore purchasable and receivable upon the
exercise  of the  rights  represented  hereby.  In any  Reclassification  Event,
appropriate  provision shall be made with respect to the rights and interests of
the Holder of this  Warrant to the end that the  provisions  hereof  (including,
without limitation,  provisions for adjustments of the Exercise Price and of the
number of Warrant Shares), shall thereafter be applicable,  as nearly as may be,
in relation to any shares of stock, securities, or assets thereafter deliverable
upon the exercise hereof.

          3.3 Stock Dividends,  ETC. Except as hereinafter provided, in case the
Company shall at any time after the date hereof issue any shares of Common Stock
(including shares held in the Company's treasury) without  consideration,  then,
and thereafter  successively  upon each  issuance,  the Exercise Price in effect
immediately  prior to each such issuance  shall  forthwith be reduced to a price
determined by multiplying the Exercise Price in effect immediately prior to such
issuance by a fraction:

          (a)  the  numerator  of which  shall be the total  number of shares of
               Common Stock outstanding immediately prior to such issuance, and

          (b)  the  denominator  of which shall be the total number of shares of
               Common Stock outstanding immediately after such issuance.

     For  purposes  of  any  computation  to be  made  in  accordance  with  the
provisions  of this  Section  3.3,  shares of Common  Stock  issuable  by way of
dividend or other  distribution  on any stock of the Company  shall be deemed to
have been  issued  and to be  outstanding  at the close of the  business  on the
record date fixed for the determination of stockholders entitled to receive such
dividend or other  distribution  and shall be deemed to have been issued without
consideration. Shares of Common Stock issued otherwise than as a dividend, shall
be deemed to have been issued and to be  outstanding at the close of business on
the date of issue.

          3.4 Notice of Adjustment. Upon any adjustment of the Exercise Price or
any increase or decrease in the number of Warrant Shares, the Company shall give
written notice thereof,  by first class mail postage  prepaid,  addressed to the
registered  Holder of this Warrant at the address of such Holder as shown on the
books of the Company.  The notice shall be prepared and signed by the  Company's
Chief  Financial  Officer and shall state the Exercise Price resulting from such
adjustment  and the  increase  or  decrease,  if any,  in the  number  of shares
purchasable  at such price upon the exercise of this  Warrant,  setting forth in
reasonable  detail  the  method of  calculation  and the facts  upon  which such
calculation is based.

     4. No Voting or Dividend Rights. Nothing contained in this Warrant shall be
construed as  conferring  upon the holder hereof the right to vote or to consent
to receive  notice as a  shareholder  of the Company on any other matters or any

                                       4
<PAGE>
rights  whatsoever  as a  shareholder  of the Company.  No dividends or interest
shall  be  payable  or  accrued  in  respect  of this  Warrant  or the  interest
represented  hereby or the shares  purchasable  hereunder until, and only to the
extent that, this Warrant shall have been exercised.

     5. Compliance With Securities Act; Transferability of Warrant;  Disposition
of Shares of Stock.

          5.1 Compliance  With  Securities  Act. The Holder of this Warrant,  by
acceptance hereof,  agrees that this Warrant and the Warrant Shares to be issued
upon  exercise  hereof are being  acquired for  investment  and that it will not
offer,  sell, or otherwise  dispose of this Warrant or any Warrant Shares except
under  circumstances  which will not result in a violation of the Securities Act
of 1933, as amended (the "Act") or any  applicable  state  securities  laws. The
Holder  agrees that the Company is under no  obligation to register the Warrants
and the Warrant Shares, and Holder acknowledges that the Company does not intend
to cause such a  registration.  This  Warrant  and all Warrant  Shares  shall be
stamped or imprinted with a legend in substantially the following form:

          THESE  SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED OR THE  SECURITIES OR BLUE SKY LAWS OF ANY STATE.  THEY MAY NOT
BE SOLD,  OFFERED  FOR  SALE,  PLEDGED,  OR  HYPOTHECATED  IN THE  ABSENCE  OF A
REGISTRATION  STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES  UNDER SUCH ACT
OR AN OPINION OF COUNSEL  SATISFACTORY TO THE COMPANY THAT SUCH  REGISTRATION IS
NOT REQUIRED, OR UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT.

          5.2 Access to Information;  Pre Existing Relationship.  Holder has had
the  opportunity to ask questions of, and to receive  answers from,  appropriate
executive  officers of the Company with respect to the terms and  conditions  of
the transactions contemplated hereby and with respect to the business,  affairs,
financial  condition and results of  operations  of the Company.  Holder has had
access to such  financial  and other  information  as is  necessary in order for
Holder to make a fully  informed  decision as to investment in the Company,  and
has had the opportunity to obtain any additional information necessary to verify
any of  such  information  to  which  Holder  has  had  access.  Holder  further
represents and warrants that he has either (i) a pre-existing  relationship with
the Company or one or more of its officers or directors  consisting  of personal
or business  contacts of a nature and  duration  which enable him to be aware of
the character,  business acumen and general business and financial circumstances
of the Company or the officer or director with whom such relationship  exists or
(ii) such  business  or  financial  expertise  as to be able to protect  his own
interests in connection with the purchase of the Shares.

                                       5
<PAGE>
          5.3  Warrant  Transferable.  Subject  to  compliance  with  applicable
federal and state  securities laws under which this Warrant was purchased,  this
Warrant and all rights hereunder are transferable,  in whole or in part, without
charge to the Holder (except for transfer taxes), upon surrender of this Warrant
properly endorsed;  provided,  however, that the Holder shall notify the Company
in writing in advance of any proposed transfer,  and if the Company notifies the
Holder  within 5 business  days of receipt of such  notice  that such  person or
entity is then  engaged in a business  that in the  reasonable  judgment  of the
Company is in direct  competition  with the  Company,  Holder shall not transfer
this Warrant or any rights hereunder to such person or entity.

          5.4  Disposition of Warrant  Shares and Common Stock.  With respect to
any offer,  sale, or other disposition of the Warrant or any Warrant Shares, the
Holder hereof and each subsequent  Holder of this Warrant agrees to give written
notice to the Company  prior  thereto,  describing  briefly the manner  thereof,
together  with a  written  opinion  of  such  Holder's  counsel,  if  reasonably
requested  by the  Company,  to the  effect  that  such  offer,  sale  or  other
disposition may be effected without registration or qualification (under the Act
as then in effect or any federal or state law then in effect) of such Warrant or
Warrant Shares, as the case may be, and indicating  whether or not under the Act
certificates for such Warrant or Warrant Shares to be sold or otherwise disposed
of  require  any   restrictive   legend  as  to   applicable   restrictions   on
transferability  in order to insure compliance with the Act. Upon receiving such
written  notice and opinion,  the  Company,  as promptly as  practicable,  shall
notify  such  Holder  that such  Holder  may sell or  otherwise  dispose of such
Warrant  or  Warrant  Shares,  all in  accordance  with the terms of the  notice
delivered  to the Company.  If a  determination  has been made  pursuant to this
Section 5.4 that the  opinion of the  counsel  for the Holder is not  reasonably
satisfactory  to the Company,  the Company  shall so notify the Holder  promptly
after such  determination  has been made.  Notwithstanding  the foregoing,  such
Warrant or Warrant  Shares may be  offered,  sold or  otherwise  disposed  of in
accordance  with Rule 144 under the Act,  provided  that the Company  shall have
been  furnished  with such  information  as the  Company  may request to provide
reasonable  assurance that the provisions of Rule 144 have been satisfied.  Each
certificate  representing the Warrant or Warrant Shares thus transferred (except
a  transfer  pursuant  to Rule 144)  shall  bear a legend  as to the  applicable
restrictions  on  transferability  in order to ensure  compliance  with the Act,
unless in the  aforesaid  opinion of counsel for the Holder,  such legend is not
required in order to ensure  compliance with the Act. The Company may issue stop
transfer   instructions   to  its  transfer   agent  in  connection   with  such
restrictions.

     6.  Modification  and Waiver.  This Warrant and any provision hereof may be
changed,  waived,  discharged,  or  terminated  only by an instrument in writing
signed by the party against which enforcement of the same is sought.

                                       6
<PAGE>
     7. NOTICES. Any notice, request, or other document required or permitted to
be given or delivered to the Holder  hereof or the Company shall be delivered or
shall be sent by certified  mail,  postage  prepaid,  to each such Holder at its
address as shown on the books of the  Company or to the  Company at the  address
indicated  therefor in the first paragraph of this Warrant or such other address
as either may from time to time provide to the other.

     8. Other Notices. If at any time:

          (1) the Company shall declare any cash dividend upon its Common Stock;

          (2) the Company  shall  declare  any  dividend  upon its Common  Stock
payable  in stock or make any  special  dividend  or other  distribution  to the
holders of its Common Stock;

          (3) the Company shall offer for  subscription  pro rata to the holders
of its Common Stock any additional shares of stock of any class or other rights;

          (4) there shall be any capital  reorganization or  reclassification of
the capital  stock of the  Company,  or  consolidation  or merger of the Company
with, or sale of all or substantially all of its assets to, another corporation;
or

          (5)  there  shall  be  a   voluntary   or   involuntary   dissolution,
liquidation, or winding-up of the Company;

then,  in any one or more of said cases,  the Company shall give, by first class
mail, postage prepaid, addressed to the Holder of this Warrant at the address of
such  Holder as shown on the books of the  Company,  (a) at least 20 days' prior
written  notice of the date on which the books of the  Company  shall close or a
record shall be taken for such dividend, distribution, or subscription rights or
for  determining  rights  to  vote  in  respect  of  any  such   reorganization,
reclassification,  consolidation,  merger, sale,  dissolution,  liquidation,  or
winding-up,  and (b) in the case of any such  reorganization,  reclassification,
consolidation, merger, sale, dissolution, liquidation or winding-up, at least 20
days' prior written notice of the date when the same shall take place; provided,
however,  that the Holder shall make a best  efforts  attempt to respond to such
notice as early as  possible  after the  receipt  thereof.  Any notice  given in
accordance with the foregoing clause (a) shall also specify,  in the case of any
such  dividend,  distribution,  or  subscription  rights,  the date on which the
holders  of  Common  Stock  shall  be  entitled  thereto.  Any  notice  given in
accordance  with the  foregoing  clause (b) shall also specify the date on which
the holders of Common Stock shall be entitled to exchange their Common Stock for
securities   or   other   property   deliverable   upon   such   reorganization,
reclassification,   consolidation,   merger,  sale,  dissolution,   liquidation,
winding-up or conversion, as the case may be.

                                       7
<PAGE>
     9.  Governing  Law.  This  Warrant  shall  be  construed  and  enforced  in
accordance with, and the rights of the parties shall be governed by, the laws of
the State of California.

     10. Lost Warrants. The Company represents and warrants to the Holder hereof
that upon  receipt of  evidence  reasonably  satisfactory  to the Company of the
loss, theft, destruction,  or mutilation of this Warrant and, in the case of any
such  loss,  theft or  destruction,  upon  receipt  of an  indemnity  reasonably
satisfactory  to  the  Company,  or in the  case  of any  such  mutilation  upon
surrender and cancellation of such Warrant,  the Company,  at its expense,  will
make and  deliver a new  Warrant,  of like tenor,  in lieu of the lost,  stolen,
destroyed or mutilated Warrant.

     11.  Fractional  Shares. No fractional shares shall be issued upon exercise
of this Warrant. The Company shall, in lieu of issuing any fractional share, pay
the  Holder  entitled  to such  fraction  a sum in cash  equal to such  fraction
(calculated to the nearest 1/100th of a share)  multiplied by the then effective
Exercise Price on the date the Form of Subscription is received by the Company.

     12. No  Impairment.  The  Company  will not,  by  charter  amendment  or by
reorganization, transfer of assets, consolidation, merger, dissolution, issue or
sale of securities,  or any other voluntary  action,  avoid or seek to avoid the
observance or performance of any terms of this Warrant, but will at all times in
good faith assist in the carrying out of all such terms and in the taking of all
such action as may be necessary or appropriate in order to protect the rights of
the Holder against impairment.  Upon the request of the Holder, the Company will
at any time  during  the  period  this  Warrant is  outstanding  acknowledge  in
writing,  in form satisfactory to Holder, the continued validity of this Warrant
and the Company's obligations hereunder.

     13.  Successors and Assigns.  This Warrant and the rights  evidenced hereby
shall inure to the benefit of and be binding upon the  successors of the Company
and the  Holder.  The  provisions  of this  Warrant  are  intended to be for the
benefit  of all  Holders  from  time  to  time of this  Warrant,  and  shall  be
enforceable by any such Holder.

     IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed
by its officer,  thereunto  duly  authorized  as of this ____ day of  _________,
1999.

                                 NEUROBIOLOGICAL TECHNOLOGIES, INC.
                                 a Delaware corporation


                                 By:      _________________________________

                                 Name:    _________________________________

                                 Title:   _________________________________

                                       8
<PAGE>
                              FORM OF SUBSCRIPTION

(To be signed only upon exercise of Warrant)

To:  Neurobiological Technologies, Inc.

[Please mark one box]

[ ]  The  undersigned,  the holder of the attached Common Stock Warrant,  hereby
     irrevocably  elects to exercise  the  purchase  right  represented  by such
     Warrant  for,  and to  purchase  thereunder,  (1)_______________  shares of
     Common Stock of  Neurobiological  Technologies,  Inc. (the  "Company")  and
     herewith  makes  payment  of   $_______________   therefor,   and  requests
     certificates  for such  shares  be  issued  in the name of,  and  delivered
     to,_______________________________________________________   whose  address
     is_____________________________________________.

[ ]  The  undersigned,  the holder of the attached Common Stock Warrant,  hereby
     irrevocably  elects to exercise  the  purchase  right  represented  by such
     Warrant  for,  and to  purchase  thereunder,  (1)_______________  shares of
     Common Stock of the Company and  herewith  elects to pay for such shares by
     reducing  the  number of shares  issuable  thereunder  in  accordance  with
     Section 1.2 thereof.  The undersigned hereby authorizes the Company to make
     the required calculation under Section 1.2 of the Warrant.

     The  undersigned  represents that it is acquiring such Common Stock for its
own account for investment and not with a view to or for sale in connection with
any distribution thereof.

DATED: __________, _____


                                 -----------------------------------------------
                                 (Signature must conform in all respects to name
                                 of Holder as specified on the face of the
                                 Warrant)

                                 Name:  __________________________________

                                 Title: __________________________________

(1)  Insert here the number of shares called for on the face of the Warrant (or,
     in the case of a partial  exercise,  the  portion  thereof  as to which the
     Warrant is being exercised),  in either case without making any adjustments
     for any stock or other  securities  or property or cash which,  pursuant to
     the adjustment provisions of the Warrant, may be deliverable upon exercise.


                                        9

                                                                 Warrant No. E-1

                        WARRANT TO PURCHASE A MAXIMUM OF
                        431,000 SHARES OF COMMON STOCK OF
                       NEUROBIOLOGICAL TECHNOLOGIES, INC.

                          (Void after November 9, 2004)

THESE  SECURITIES HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED.  THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE
ABSENCE OF A  REGISTRATION  STATEMENT IN EFFECT WITH  RESPECT TO THE  SECURITIES
UNDER SUCH ACT OR AN OPINION OF COUNSEL  SATISFACTORY  TO THE COMPANY  THAT SUCH
REGISTRATION IS NOT REQUIRED OR UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT.

THIS WARRANT AND THE SHARES PURCHASABLE HEREUNDER ARE SUBJECT TO RESTRICTIONS ON
TRANSFER AS SET FORTH HEREIN.

     This certifies that Charles B. Engelberg,  M.D. (the "Holder"), or assigns,
for value received,  is entitled to purchase from Neurobiological  Technologies,
Inc., a Delaware  corporation  (the  "Company"),  subject to the terms set forth
below,  a maximum of 431,000  fully paid and  nonassessable  shares  (subject to
adjustment  as provided  herein) of the  Company's  Common  Stock (the  "Warrant
Shares") for cash at a price of $4.40 per share (the "Exercise  Price") (subject
to  adjustment  as  provided  herein) at any time or from time to time up to and
including  5:00 p.m.  (California  Time) on November 9, 2004,  (the  "Expiration
Date") upon  surrender to the Company at its principal  office (or at such other
location  as the  Company  may  advise the Holder in  writing)  of this  Warrant
properly  endorsed with the Form of Subscription  attached hereto duly filled in
and signed and upon payment in cash or by check of the aggregate  Exercise Price
for the number of shares for which this Warrant is being exercised determined in
accordance  with  the  provisions  hereof.  The  Exercise  Price is  subject  to
adjustment  as provided  in Section 3 of this  Warrant.  This  Warrant is issued
subject to the following terms and conditions:

     1.  Exercise,  Issuance  of  Certificates,  Reduction  in Number of Warrant
Shares.

          1.1 General.  This Warrant is  exercisable at the option of the Holder
of record hereof on or prior to the Expiration Date, at any time or from time to
time following its issuance,  for all or any part of the Warrant Shares (but not
for a fraction of a share) which may be purchased hereunder,  as that number may
<PAGE>
be adjusted  pursuant to Section 3 of this Warrant.  The Company agrees that the
Warrant Shares purchased under this Warrant shall be and are deemed to be issued
to the Holder hereof as the record owner of such Warrant  Shares as of the close
of  business  on the date on which this  Warrant  shall  have been  surrendered,
properly  endorsed,  the completed and executed Form of Subscription  delivered,
and payment made for such Warrant Shares. Certificates for the Warrant Shares so
purchased,  together  with any other  securities or property to which the Holder
hereof is entitled upon such  exercise,  shall be delivered to the Holder hereof
by the Company at the Company's  expense not later than 10 days after the rights
represented  by this  Warrant have been so  exercised.  In case of a purchase of
less than all the Warrant Shares which may be purchased under this Warrant,  the
Company  shall cancel this Warrant and execute and deliver to the Holder  hereof
within a reasonable time a new Warrant or Warrants of like tenor for the balance
of the  Warrant  Shares  purchasable  under the  Warrant  surrendered  upon such
purchase. Each stock certificate so delivered shall be registered in the name of
such Holder.

          1.2 Net Issue  Exercise of  Warrant.  Notwithstanding  any  provisions
herein to the contrary, if the fair market value of one share of Common Stock is
greater than the Exercise Price (at the date of calculation as set forth below),
in lieu of exercising this Warrant for cash,  Holder may elect to receive shares
of Common Stock equal to the value (as determined below) of this Warrant (or the
portion  thereof  being  canceled) by surrender of this Warrant at the principal
office of the Company  together with the properly  endorsed Form of Subscription
in which  event  the  Company  shall  issue to the  Holder a number of shares of
Common Stock computed using the following formula:

                    X = Y (A-B)
                        -------
                           A

          Where     X = the number of shares of Common Stock to be issued
                        to Holder;

                    Y = the number of shares of Common Stock purchasable
                        under the Warrant or, if only a portion of the
                        Warrant is being exercised, the portion of the
                        Warrant being canceled (at the date of such
                        calculation);

                    A = the fair market value of one share of the
                        Company's Common Stock (at the date of such
                        calculation); and

                    B = Exercise Price (as adjusted to the date of such
                        calculation).

For  purposes of the above  calculation,  the fair market  value of one share of
Common  Stock shall be the  average of the  closing bid and asked  prices of the
Common Stock quoted in the over-the-counter  market summary or the last reported
sale  price of the  Common  Stock or the  closing  price  quoted  on the  Nasdaq
National  Market  System or on any exchange on which the Common Stock is listed,

                                       2
<PAGE>
whichever is  applicable,  as published in The Wall Street  Journal for the five
trading days prior to the date of determination of fair market value.

     2.  Shares to be Fully  Paid.  The  Company  covenants  and agrees that all
Warrant  Shares,  will,  upon  issuance  and,  if  applicable,  payment  of  the
applicable  Exercise Price, be duly authorized,  validly issued,  fully paid and
nonassessable,  and free of all liens and encumbrances,  except for restrictions
on transfer provided for herein or under applicable federal and state securities
laws.

     3.  Adjustment of Exercise  Price and Number of Shares.  The Exercise Price
and the total number of Warrant Shares shall be subject to adjustment  from time
to time upon the occurrence of certain events  described in this Section 3. Upon
each  adjustment  of the  Exercise  Price,  the  Holder  of this  Warrant  shall
thereafter be entitled to purchase,  at the Exercise  Price  resulting from such
adjustment,  the number of shares  obtained by multiplying the Exercise Price in
effect  immediately prior to such adjustment by the number of shares purchasable
pursuant hereto  immediately prior to such adjustment,  and dividing the product
thereof by the Exercise Price resulting from such adjustment.

          3.1  Subdivision or Combination of Stock. In case the Company shall at
any time subdivide its outstanding  shares of Common Stock into a greater number
of shares,  the Exercise Price in effect  immediately  prior to such subdivision
shall be  proportionately  reduced  and the  number of Warrant  Shares  issuable
hereunder  proportionately  increased,  and conversely,  in case the outstanding
shares of the  Common  Stock of the  Company  shall be  combined  into a smaller
number  of  shares,  the  Exercise  Price in  effect  immediately  prior to such
combination shall be proportionately  increased and the number of Warrant Shares
issuable hereunder proportionately decreased.

          3.2 Reclassification.  If any reclassification of the capital stock of
the Company or any  reorganization,  consolidation,  merger, or any sale, lease,
license,  exchange or other transfer (in one  transaction or a series of related
transactions) of all or substantially  all, of the business and/or assets of the
Company  (the  "Reclassification  Events")  shall be effected in such a way that
holders of Common Stock shall be entitled to receive stock, securities, or other
assets or property,  then, as a condition of such Reclassification  Event lawful
and adequate provisions shall be made whereby the Holder hereof shall thereafter
have the right to purchase and receive (in lieu of the shares of Common Stock of
the Company immediately theretofore purchasable and receivable upon the exercise
of the rights  represented  hereby) such shares of stock,  securities,  or other
assets or  property as may be issued or payable  with  respect to or in exchange
for a number of  outstanding  shares of such Common Stock equal to the number of
shares of such stock immediately theretofore purchasable and receivable upon the
exercise  of the  rights  represented  hereby.  In any  Reclassification  Event,
appropriate  provision shall be made with respect to the rights and interests of

                                       3
<PAGE>
the Holder of this  Warrant to the end that the  provisions  hereof  (including,
without limitation,  provisions for adjustments of the Exercise Price and of the
number of Warrant Shares), shall thereafter be applicable,  as nearly as may be,
in relation to any shares of stock, securities, or assets thereafter deliverable
upon the exercise hereof.

          3.3 Stock Dividends,  ETC. Except as hereinafter provided, in case the
Company shall at any time after the date hereof issue any shares of Common Stock
(including shares held in the Company's treasury) without  consideration,  then,
and thereafter  successively  upon each  issuance,  the Exercise Price in effect
immediately  prior to each such issuance  shall  forthwith be reduced to a price
determined by multiplying the Exercise Price in effect immediately prior to such
issuance by a fraction:

          (a)  the  numerator  of which  shall be the total  number of shares of
               Common Stock outstanding immediately prior to such issuance, and

          (b)  the  denominator  of which shall be the total number of shares of
               Common Stock outstanding immediately after such issuance.

     For  purposes  of  any  computation  to be  made  in  accordance  with  the
provisions  of this  Section  3.3,  shares of Common  Stock  issuable  by way of
dividend or other  distribution  on any stock of the Company  shall be deemed to
have been  issued  and to be  outstanding  at the close of the  business  on the
record date fixed for the determination of stockholders entitled to receive such
dividend or other  distribution  and shall be deemed to have been issued without
consideration. Shares of Common Stock issued otherwise than as a dividend, shall
be deemed to have been issued and to be  outstanding at the close of business on
the date of issue.

          3.4 Notice of Adjustment. Upon any adjustment of the Exercise Price or
any increase or decrease in the number of Warrant Shares, the Company shall give
written notice thereof,  by first class mail postage  prepaid,  addressed to the
registered  Holder of this Warrant at the address of such Holder as shown on the
books of the Company.  The notice shall be prepared and signed by the  Company's
Chief  Financial  Officer and shall state the Exercise Price resulting from such
adjustment  and the  increase  or  decrease,  if any,  in the  number  of shares
purchasable  at such price upon the exercise of this  Warrant,  setting forth in
reasonable  detail  the  method of  calculation  and the facts  upon  which such
calculation is based.

                                       4
<PAGE>
     4. No Voting or Dividend Rights. Nothing contained in this Warrant shall be
construed as  conferring  upon the holder hereof the right to vote or to consent
to receive  notice as a  shareholder  of the Company on any other matters or any
rights  whatsoever  as a  shareholder  of the Company.  No dividends or interest
shall  be  payable  or  accrued  in  respect  of this  Warrant  or the  interest
represented  hereby or the shares  purchasable  hereunder until, and only to the
extent that, this Warrant shall have been exercised.

     5. Compliance With Securities Act; Transferability of Warrant;  Disposition
of Shares of Stock.

          5.1 Compliance  With  Securities  Act. The Holder of this Warrant,  by
acceptance hereof,  agrees that this Warrant and the Warrant Shares to be issued
upon  exercise  hereof are being  acquired for  investment  and that it will not
offer,  sell, or otherwise  dispose of this Warrant or any Warrant Shares except
under  circumstances  which will not result in a violation of the Securities Act
of 1933, as amended (the "Act") or any  applicable  state  securities  laws. The
Holder  agrees that the Company is under no  obligation to register the Warrants
and the Warrant Shares, and Holder acknowledges that the Company does not intend
to cause such a  registration.  This  Warrant  and all Warrant  Shares  shall be
stamped or imprinted with a legend in substantially the following form:

          THESE  SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED OR THE  SECURITIES OR BLUE SKY LAWS OF ANY STATE.  THEY MAY NOT
BE SOLD,  OFFERED  FOR  SALE,  PLEDGED,  OR  HYPOTHECATED  IN THE  ABSENCE  OF A
REGISTRATION  STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES  UNDER SUCH ACT
OR AN OPINION OF COUNSEL  SATISFACTORY TO THE COMPANY THAT SUCH  REGISTRATION IS
NOT REQUIRED, OR UNLESS SOLD PURSUANT TO RULE 144 OF SUCH ACT.

          5.2 Access to Information;  Pre Existing Relationship.  Holder has had
the  opportunity to ask questions of, and to receive  answers from,  appropriate
executive  officers of the Company with respect to the terms and  conditions  of
the transactions contemplated hereby and with respect to the business,  affairs,
financial  condition and results of  operations  of the Company.  Holder has had
access to such  financial  and other  information  as is  necessary in order for
Holder to make a fully  informed  decision as to investment in the Company,  and
has had the opportunity to obtain any additional information necessary to verify
any of  such  information  to  which  Holder  has  had  access.  Holder  further
represents and warrants that he has either (i) a pre-existing  relationship with
the Company or one or more of its officers or directors  consisting  of personal
or business  contacts of a nature and  duration  which enable him to be aware of
the character,  business acumen and general business and financial circumstances
of the Company or the officer or director with whom such relationship  exists or

                                       5
<PAGE>
(ii) such  business  or  financial  expertise  as to be able to protect  his own
interests in connection with the purchase of the Shares.

          5.3  Warrant  Transferable.  Subject  to  compliance  with  applicable
federal and state  securities laws under which this Warrant was purchased,  this
Warrant and all rights hereunder are transferable,  in whole or in part, without
charge to the Holder (except for transfer taxes), upon surrender of this Warrant
properly endorsed;  provided,  however, that the Holder shall notify the Company
in writing in advance of any proposed transfer,  and if the Company notifies the
Holder  within 5 business  days of receipt of such  notice  that such  person or
entity is then  engaged in a business  that in the  reasonable  judgment  of the
Company is in direct  competition  with the  Company,  Holder shall not transfer
this Warrant or any rights hereunder to such person or entity.

          5.4  Disposition of Warrant  Shares and Common Stock.  With respect to
any offer,  sale, or other disposition of the Warrant or any Warrant Shares, the
Holder hereof and each subsequent  Holder of this Warrant agrees to give written
notice to the Company  prior  thereto,  describing  briefly the manner  thereof,
together  with a  written  opinion  of  such  Holder's  counsel,  if  reasonably
requested  by the  Company,  to the  effect  that  such  offer,  sale  or  other
disposition may be effected without registration or qualification (under the Act
as then in effect or any federal or state law then in effect) of such Warrant or
Warrant Shares, as the case may be, and indicating  whether or not under the Act
certificates for such Warrant or Warrant Shares to be sold or otherwise disposed
of  require  any   restrictive   legend  as  to   applicable   restrictions   on
transferability  in order to insure compliance with the Act. Upon receiving such
written  notice and opinion,  the  Company,  as promptly as  practicable,  shall
notify  such  Holder  that such  Holder  may sell or  otherwise  dispose of such
Warrant  or  Warrant  Shares,  all in  accordance  with the terms of the  notice
delivered  to the Company.  If a  determination  has been made  pursuant to this
Section 5.4 that the  opinion of the  counsel  for the Holder is not  reasonably
satisfactory  to the Company,  the Company  shall so notify the Holder  promptly
after such  determination  has been made.  Notwithstanding  the foregoing,  such
Warrant or Warrant  Shares may be  offered,  sold or  otherwise  disposed  of in
accordance  with Rule 144 under the Act,  provided  that the Company  shall have
been  furnished  with such  information  as the  Company  may request to provide
reasonable  assurance that the provisions of Rule 144 have been satisfied.  Each
certificate  representing the Warrant or Warrant Shares thus transferred (except
a  transfer  pursuant  to Rule 144)  shall  bear a legend  as to the  applicable
restrictions  on  transferability  in order to ensure  compliance  with the Act,
unless in the  aforesaid  opinion of counsel for the Holder,  such legend is not
required in order to ensure  compliance with the Act. The Company may issue stop
transfer   instructions   to  its  transfer   agent  in  connection   with  such
restrictions.

                                       6
<PAGE>
     6.  Modification  and Waiver.  This Warrant and any provision hereof may be
changed,  waived,  discharged,  or  terminated  only by an instrument in writing
signed by the party against which enforcement of the same is sought.

     7. Notices. Any notice, request, or other document required or permitted to
be given or delivered to the Holder  hereof or the Company shall be delivered or
shall be sent by certified  mail,  postage  prepaid,  to each such Holder at its
address as shown on the books of the  Company or to the  Company at the  address
indicated  therefor in the first paragraph of this Warrant or such other address
as either may from time to time provide to the other.

     8. Other Notices. If at any time:

          (1) the Company shall declare any cash dividend upon its Common Stock;

          (2) the Company  shall  declare  any  dividend  upon its Common  Stock
payable  in stock or make any  special  dividend  or other  distribution  to the
holders of its Common Stock;

          (3) the Company shall offer for  subscription  pro rata to the holders
of its Common Stock any additional shares of stock of any class or other rights;

          (4) there shall be any capital  reorganization or  reclassification of
the capital  stock of the  Company,  or  consolidation  or merger of the Company
with, or sale of all or substantially all of its assets to, another corporation;
or

          (5)  there  shall  be  a   voluntary   or   involuntary   dissolution,
liquidation, or winding-up of the Company;

then,  in any one or more of said cases,  the Company shall give, by first class
mail, postage prepaid, addressed to the Holder of this Warrant at the address of
such  Holder as shown on the books of the  Company,  (a) at least 20 days' prior
written  notice of the date on which the books of the  Company  shall close or a
record shall be taken for such dividend, distribution, or subscription rights or
for  determining  rights  to  vote  in  respect  of  any  such   reorganization,
reclassification,  consolidation,  merger, sale,  dissolution,  liquidation,  or
winding-up,  and (b) in the case of any such  reorganization,  reclassification,
consolidation, merger, sale, dissolution, liquidation or winding-up, at least 20
days' prior written notice of the date when the same shall take place; provided,
however,  that the Holder shall make a best  efforts  attempt to respond to such
notice as early as  possible  after the  receipt  thereof.  Any notice  given in
accordance with the foregoing clause (a) shall also specify,  in the case of any
such  dividend,  distribution,  or  subscription  rights,  the date on which the
holders  of  Common  Stock  shall  be  entitled  thereto.  Any  notice  given in

                                       7
<PAGE>
accordance  with the  foregoing  clause (b) shall also specify the date on which
the holders of Common Stock shall be entitled to exchange their Common Stock for
securities   or   other   property   deliverable   upon   such   reorganization,
reclassification,   consolidation,   merger,  sale,  dissolution,   liquidation,
winding-up or conversion, as the case may be.

     9.  Governing  Law.  This  Warrant  shall  be  construed  and  enforced  in
accordance with, and the rights of the parties shall be governed by, the laws of
the State of California.

     10. Lost Warrants. The Company represents and warrants to the Holder hereof
that upon  receipt of  evidence  reasonably  satisfactory  to the Company of the
loss, theft, destruction,  or mutilation of this Warrant and, in the case of any
such  loss,  theft or  destruction,  upon  receipt  of an  indemnity  reasonably
satisfactory  to  the  Company,  or in the  case  of any  such  mutilation  upon
surrender and cancellation of such Warrant,  the Company,  at its expense,  will
make and  deliver a new  Warrant,  of like tenor,  in lieu of the lost,  stolen,
destroyed or mutilated Warrant.

     11.  Fractional  Shares. No fractional shares shall be issued upon exercise
of this Warrant. The Company shall, in lieu of issuing any fractional share, pay
the  Holder  entitled  to such  fraction  a sum in cash  equal to such  fraction
(calculated to the nearest 1/100th of a share)  multiplied by the then effective
Exercise Price on the date the Form of Subscription is received by the Company.

     12. No  Impairment.  The  Company  will not,  by  charter  amendment  or by
reorganization, transfer of assets, consolidation, merger, dissolution, issue or
sale of securities,  or any other voluntary  action,  avoid or seek to avoid the
observance or performance of any terms of this Warrant, but will at all times in
good faith assist in the carrying out of all such terms and in the taking of all
such action as may be necessary or appropriate in order to protect the rights of
the Holder against impairment.  Upon the request of the Holder, the Company will
at any time  during  the  period  this  Warrant is  outstanding  acknowledge  in
writing,  in form satisfactory to Holder, the continued validity of this Warrant
and the Company's obligations hereunder.

     13.  Successors and Assigns.  This Warrant and the rights  evidenced hereby
shall inure to the benefit of and be binding upon the  successors of the Company
and the  Holder.  The  provisions  of this  Warrant  are  intended to be for the
benefit  of all  Holders  from  time  to  time of this  Warrant,  and  shall  be
enforceable by any such Holder.

                                       8
<PAGE>
     IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed
by its officer, thereunto duly authorized as of this 9th day of November, 1999.

                                    NEUROBIOLOGICAL TECHNOLOGIES, INC.
                                    a Delaware corporation


                                    By:    /s/ Paul E. Freiman
                                           -------------------------------------

                                    Name: Paul E. Freiman
                                           -------------------------------------

                                    Title: President and Chief Executive Officer
                                           -------------------------------------

                                       9
<PAGE>
                              FORM OF SUBSCRIPTION

(To be signed only upon exercise of Warrant)

To:  Neurobiological Technologies, Inc.

[Please mark one box]

[ ]  The  undersigned,  the holder of the attached Common Stock Warrant,  hereby
     irrevocably  elects to exercise  the  purchase  right  represented  by such
     Warrant  for,  and to  purchase  thereunder,  (1)_______________  shares of
     Common Stock of  Neurobiological  Technologies,  Inc. (the  "Company")  and
     herewith  makes  payment  of   $_______________   therefor,   and  requests
     certificates  for such  shares  be  issued  in the name of,  and  delivered
     to,_______________                       whose                      address
     is_____________________________________________.

[ ]  The  undersigned,  the holder of the attached Common Stock Warrant,  hereby
     irrevocably  elects to exercise  the  purchase  right  represented  by such
     Warrant  for,  and to  purchase  thereunder,  (1)_______________  shares of
     Common Stock of the Company and  herewith  elects to pay for such shares by
     reducing  the  number of shares  issuable  thereunder  in  accordance  with
     Section 1.2 thereof.  The undersigned hereby authorizes the Company to make
     the required calculation under Section 1.2 of the Warrant.

     The  undersigned  represents that it is acquiring such Common Stock for its
own account for investment and not with a view to or for sale in connection with
any distribution thereof.

DATED:   __________, _____


                              --------------------------------------------------
                              (Signature must conform in all respects to name of
                              Holder as specified on the face of the Warrant)

                              Name:  ___________________________________________

                              Title: ___________________________________________

(1)  Insert here the number of shares called for on the face of the Warrant (or,
     in the case of a partial  exercise,  the  portion  thereof  as to which the
     Warrant is being exercised),  in either case without making any adjustments
     for any stock or other  securities  or property or cash which,  pursuant to
     the adjustment provisions of the Warrant, may be deliverable upon exercise.


                                       10


                            AMERICAL SECURITIES, INC.
                               290 Seventh Avenue
                         San Francisco, California 94108

                                                                    July 8, 1999

Neurobiological Technologies, Inc.
1387 Marina Way South
Richmond, California 94804

Gentlemen:

             This letter sets forth our agreement  whereby AmeriCal  Securities,
Inc.  ("AmeriCal")  will act as exclusive  placement  agent for  Neurobiological
Technologies,  Inc. (the "Company") for the offer and sale of units ("Units") of
common  stock and  warrants to purchase  common stock of the Company for a gross
purchase  price not to exceed  $2,000,000 as more  particularly  outlined in the
attached term sheet (the "Term Sheet"). It is understood that the offering shall
be made  pursuant to Regulation D under the  Securities  Act of 1933, as amended
(the "Securities Act").

             The  sale  of  such  securities  is  subject  to the  execution  of
definitive  documents  satisfactory to the Company, the purchasers and AmeriCal.
The definitive agreements will contain representations, warranties and covenants
of  the  parties,   conditions  and  indemnification   provisions  customary  in
transactions of similar type and size.

             All defined terms used and not otherwise  defined herein shall have
the meanings set forth for such terms in the Term Sheet.

             In consideration of the services rendered by AmeriCal as the result
of any  sale of Units of the  Company  sold to any  purchaser  not  excluded  in
Appendix A, the Company shall at the closing of such sale pay to AmeriCal a cash
commission equal to 7.0% of the gross sales price for the Units sold (such gross
sales price shall not be deemed to include the  exercise  price of the  warrants
contained in the Units) and issue to AmeriCal or its designee five year warrants
to purchase  for 110% of the gross sales price per Unit sold, a number of shares
of common stock of the Company equal to 10% of the shares of common stock of the
Company sold as part of the Units (the "Placement Agent Warrants").  The Company
shall issue and deliver to AmeriCal a  certificate  representing  the  Placement
Agent Warrants within ten business days after the final closing date of the sale
of the Units.  The Company also agrees to pay to AmeriCal a cash  commission  of
7.0% of the  purchase  price for any shares of Common  Stock sold by the Company
upon exercise of any of the warrants included in the Units. Such cash commission
shall be  payable  within 10 days  after the  Company  receives  payment  of the
purchase price for such Common Stock.

<PAGE>

             Regardless of the investors  involved , upon closing of an offering
which successfully raises at least $1.5 million dollars,  AmeriCal shall receive
a cash commission of least one hundred and fifty thousand dollars ($150,000.00).

             The Company also agrees to reimburse AmeriCal for all out-of-pocket
expenses of AmeriCal  relating to the  offering of  securities  of the  Company,
including  travel expenses and legal fees and  disbursements of counsel retained
by  AmeriCal in  connection  with the matters  contemplated  by this  Agreement,
promptly  after  submission to the Company of reasonable  documentation  of such
expenses,  provided that such fees and expenses  shall not exceed $15,000 in the
aggregate.

             To the extent that the terms of this  Agreement  conflict  with the
terms of the agreement between AmeriCal and the Company dated March 3, 1999 (the
"March 1999  Agreement")  the terms of this agreement  shall control.  Except as
provided in the preceding  sentence,  the March 1999  Agreement  shall remain in
full force and effect.

             The engagement of AmeriCal  hereunder may be terminated at any time
after August 31, 1999 upon 30 days prior written  notice given by the Company at
any time,  provided  that  AmeriCal  shall be  entitled  to  receive  all of the
compensation set forth in the third paragraph of this letter with respect to any
sale of Units or securities  exercisable or convertible into common stock of the
Company (on an as-converted  basis based upon the initial exercise or conversion
price) made to any person,  firm or entity  excluding those listed on Appendix A
hereto within six months after the effective  date of  termination of AmeriCal's
engagement.  AmeriCal  may  resign at any time  effective  upon  receipt  by the
Company of written notice thereof from AmeriCal.

             The services to be rendered by AmeriCal are on a best efforts basis
and the Company  acknowledges that AmeriCal is not making any  representation or
guarantee  that any person will  purchase any  securities  of the Company at any
time through the efforts of AmeriCal or otherwise.

The Company  agrees that,  without the prior written  consent of AmeriCal,  such
consent not to be unreasonably withheld, the Company will not disclose, and will
not include in any public  announcement  the name of any  purchaser  or offeree,
unless and until such  disclosure  is required by  applicable  law or applicable
regulation, and then only to the extent of such requirements. The Company agrees
that the  withholding of consent by AmeriCal  shall be deemed  reasonable if the
purchaser or offeree directs AmeriCal not to allow disclosure of its name.

             Each  party  agrees to  maintain  all  non-public  and  proprietary
information obtained hereunder  confidential and not to use such information for
any purpose other than to evaluate the proposed transaction. Notwithstanding the
foregoing,  AmeriCal may disclose such  information  pursuant to applicable law,
regulation, subpoena or administrative investigation.  The foregoing restriction
shall not apply to any such  information  which becomes  generally  known to the
public for any reason whatsoever other than a breach hereof by AmeriCal.


                                       2
<PAGE>

             The Company  agrees to indemnify  AmeriCal in  accordance  with the
indemnification  provisions (the "Indemnification  Provisions") attached to this
Agreement which  Indemnification  Provisions are incorporated  herein and made a
part hereof and which shall survive any amendment,  restatement,  termination or
expiration of this Agreement.

             This  Agreement  may  not be  amended  or  modified,  except  by an
instrument in writing signed by each of AmeriCal and the Company.

             This  Agreement  shall be governed by and  construed in  accordance
with the laws of the State of California, without regard to its conflicts of law
principles.  Each party hereby  irrevocably  submits to the  jurisdiction of any
court of the State of  California,  County of San Francisco or the United States
District  Court for the Northern  District of California in connection  with any
suit, action or proceeding arising out of this Agreement.

             This  Agreement  shall be binding upon AmeriCal and the Company and
shall inure to the benefit of their  respective  successors  and  assigns.  This
Agreement constitutes the entire understanding and agreement of the parties with
respect  to the  subject  matter  hereof  and it  supersedes  all  prior  and/or
contemporaneous  understandings  and  agreements  with  respect to such  subject
matter, all of which are merged herein.

             Please  indicate  your  agreement  with the terms of this letter by
signing a copy of this letter in the space set forth below and  returning  it to
the undersigned.

                                                  Sincerely ,

                                                  AMERICAL SECURITIES, INC.

                                                 By: /s/ Charles Engelberg, M.D.
                                                     ---------------------------
                                                      Charles Engelberg, M.D.
                                                      Director of Research

             The foregoing accurately sets forth our understanding and agreement
with respect to matters set forth herein.

Accepted this__________ day of July, 1999.

NEUROBIOLOGICAL TECHNOLOGIES, INC.

By: /s/ Paul E. Freiman
    -----------------------------

Title: President and Chief Executive Officer
       --------------------------------------


                                       3
<PAGE>


                           INDEMNIFICATION PROVISIONS

             Neurobiological Technologies,  Inc. ("NTI") agrees to indemnify and
hold harmless  AmeriCal  Securities,  Inc.  ("AmeriCal")  to the fullest  extent
permitted by law, from and against, and AmeriCal shall not have any liability to
NTI, or its owners,  parents,  creditors  or security  holders  for, any and all
losses, claims, damages, obligations, penalties, judgments, awards, liabilities,
costs, expenses and disbursements (and any and all actions,  suits,  proceedings
and investigations in respect thereof and any and all reasonable legal and other
costs,  expenses or disbursements in giving testimony or furnishing documents in
response to a subpoena or otherwise),  including, without limitation, the costs,
expenses and disbursements, as and when incurred, of investigating, preparing or
defending any such action,  suit proceeding or investigation  (whether or not in
connection  with  litigation  in  which  AmeriCal  is  a  party),   directly  or
indirectly,  caused by, relating to, based upon, arising out of or in connection
with (a) AmeriCal's acting for NTI, including,  without  limitation,  any act or
omission by AmeriCal in connection  with its acceptance of or the performance or
non-performance  of its  obligations  under  the  agreement  dated  July , 1999,
between  NTI  and  AmeriCal,  as it  may be  amended  from  time  to  time  (the
"Agreement"), (b) any transaction,  including the sale of the securities of NTI,
as contemplated by this  Agreement;  (c) any untrue  statement or alleged untrue
statement of a material  fact  contained  in, or omissions or alleged  omissions
from any disclosure  document used in connection  with the sale of securities of
NTI or  similar  statements  or  omissions  in or  from  any  other  information
furnished  by NTI to AmeriCal  or any  prospective  purchaser  or (d) any use of
proceeds from a sale of securities  contemplated  by this  Agreement;  provided,
however, such indemnity agreement shall not apply to AmeriCal for any portion of
any such loss, claim, damage,  obligation,  penalty, judgment, award, liability,
cost, expense or disbursement to the extent it is found in a final judgment by a
court of competent jurisdiction (not subject to further appeal) to have resulted
from the  negligence or willful  misconduct of AmeriCal or to have resulted from
written information furnished to NTI by or on behalf of AmeriCal with respect to
AmeriCal expressly for use in any securities offering document of NTI.

             These  Indemnification  Provisions  shall  be in  addition  to  any
liability  which NTI may  otherwise  have to AmeriCal and shall extend to all of
AmeriCal's affiliated entities,  directors,  officers, employees, legal counsel,
agents and  controlling  persons  (within the meaning of the federal  securities
laws). All references to AmeriCal in these  Indemnification  Provisions shall be
understood to include any and all of the foregoing.

             If any action, suit,  proceeding or investigation is commenced,  as
to which AmeriCal proposes to demand  indemnification,  it shall notify NTI with
reasonable promptness; provided, however, that any failure by AmeriCal to notify
NTI shall not relieve NTI from its  obligations  hereunder  unless such  failure
prevents the  presentation  of material  defenses  thereto.  NTI shall thereupon
assume the defense of any such action, proceeding or investigation at NTI's sole
cost and  expense.  AmeriCal  shall  have the  right but not the  obligation  to
participate  at its own expense in the defense  thereof by counsel of its choice
and at AmeriCal's expense. In the event that NTI fails


                                       4
<PAGE>

timely to defend,  contest or otherwise  protect AmeriCal against any such suit,
action,  investigation  or  proceeding  or if  counsel  chosen  by NTI to defend
AmeriCal  shall have a conflict of interest in its  representation  of AmeriCal,
AmeriCal shall have the right to appoint counsel of AmeriCal's  choice to defend
AmeriCal at NTI's sole cost and expense.  NTI shall be liable for any settlement
of any claim against  AmeriCal made with NTI's  written  consent,  which consent
shall not be  unreasonably  withheld.  NTI shall not,  without the prior written
consent of  AmeriCal,  settle or  compromise  any claim,  or permit a default or
consent to the entry of any judgment in respect thereof, unless such settlement,
compromise or consent includes,  as an unconditional term thereof, the giving by
the claimant to AmeriCal of an  unconditional  and irrevocable  release from all
liability in respect of such claim.

             In order to provide for just and equitable contribution, if a claim
for indemnification pursuant to these Indemnification  Provisions is made but it
is found in a final judgment by a court of competent  jurisdiction  (not subject
to further appeal) that such  indemnification  may not be enforced in such case,
even though the express  provisions hereof provide for  indemnification  in such
case,  then NTI and AmeriCal shall  contribute to the losses,  claims,  damages,
obligations,  penalties,  judgments,  awards,  liabilities,  costs, expenses and
disbursements to which the indemnified persons may be subject in accordance with
the  relative  benefits  received  by them,  and also  their  relative  fault in
connection with the statements, acts or omissions which resulted in such losses,
claims, damages, obligations,  penalties, judgments, awards, liabilities, costs,
expenses and disbursements and the relevant equitable  considerations shall also
be considered.  No person found liable for a fraudulent  misrepresentation shall
be entitled  to  contribution  from any person who is not also found  liable for
such fraudulent misrepresentation. Notwithstanding the foregoing, AmeriCal shall
not be obligated to contribute  any amount  hereunder that exceeds the amount of
fees previously received by AmeriCal pursuant to the Agreement.

             Neither  termination  nor  completion of the engagement of AmeriCal
referred to above shall  affect  these  Indemnification  Provisions  which shall
remain operative and in full force and effect.


<PAGE>

                                September 1, 1999

Charles B. Engelberg, M.D.
Director of Research
AmeriCal Securities, Inc.
290 7th Avenue
San Francisco, CA  94118

Dear Charles,

         As I  informed  you  yesterday  when we spoke,  I am hereby  giving you
written   notice  of  our   intention  to  terminate   the   agreement   between
Neurobiological  Technologies,   Inc.  ("NTI")  and  AmeriCal  Securities,  Inc.
("AmeriCal")  dated July 8, 1999 engaging AmeriCal as exclusive  placement agent
for the sale of certain securities of NTI (the "Units").

         As you agreed when we spoke,  AmeriCal is not owed any compensation for
any of the  subscriptions  that NTI has  received to purchase  Units to date and
will also  agree to waive  its  rights  to any  compensation  for Units or other
securities sold by NTI within six months of the termination of the engagement. I
am also  requesting  that you waive  AmeriCal's  right to 30 days prior  written
notice and agree to have this  termination  be  effective as of the date of this
letter, so that I can proceed with raising the much needed funding for NTI.

         Thank you for your willingness to promptly resolve this matter.

                                           Sincerely,

                                           /s/ Paul E. Freiman

                                           Paul E. Freiman
                                           President and Chief Executive Officer

Accepted and Agreed

AMERICAL SECURITIES, INC.

By: /s/ Charles Engelberg, M.D.
    -----------------------------
         Charles Engelberg, M.D.
         Director of Research


<PAGE>

October 11, 1999

                                                                   Via Facsimile

Charles B. Engelberg, M.D.
Director of Research
AmeriCal Securities, Inc.
290 7th Avenue
San Francisco, CA  94118

Dear Charles,

Following our  conversation of last Friday,  I would like to formalize the facts
that we reinstate our agreement of July 8, 1999 until  November 1, 1999.  NTI(R)
agrees to file a Form S-3 Registration  Statement within 30 days of the closing.
We will register the securities for resale through this S-3 mechanism.  However,
because of the costs  entailed,  we will not initiate that process until we have
received at least $2 million from you.

It was a pleasure to be with you and your  colleagues  and we hope that this run
will be highly successful.

Sincerely,

/s/ Paul E. Freiman

Paul E. Freiman
President and Chief Executive Officer

PEF/ab


                                                                    Exhibit 23.2

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

     We consent to the reference to our firm under the caption  "Experts" in the
Registration Statement and to the use of our report dated August 6, 1999, in the
Registration  Statement  (Form SB-2) and related  Prospectus of  Neurobiological
Technologies, Inc. for the registration of 8,039,580 shares of its common stock.

                                       /s/ ERNST & YOUNG LLP

Palo Alto, California
December 23, 1999


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