AMERICAN BIO MEDICA CORP
S-3, 1998-09-28
MEASURING & CONTROLLING DEVICES, NEC
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   As filed with the Securities and Exchange Commission on September 28, 1998

                                                   Registration No. 333-16535

              ----------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                                Washington, D. C.

                                    FORM S-3

                             REGISTRATION STATEMENT
                                    UNDER THE
                             SECURITIES ACT OF 1933


                         AMERICAN BIO MEDICA CORPORATION
                 ----------------------------------------------
            (Exact Name of Registration as Specified in its Charter)



             New York                              22-3378935
- -------------------------------                -------------------
(State or other jurisdiction of                 (I.R.S. Employer
 incorporation or organization)                Identification No.)


          300 Fairview Avenue, Hudson, New York 12534      800-227-1243
          -------------------------------------------------------------
          (Address, including zip code and telephone number, including
          area code, of registrant's principal executive offices)



   Stan Cipkowski, 300 Fairview Avenue, Hudson, New York 12534   800-227-1243
   --------------------------------------------------------------------------
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

     Approximate date of commencement of proposed sale to the public:  From time
to time after the effective date of this Registration Statement.

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. [ ]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [x]

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. [ ]

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registrations  statement number of the earlier effective  registration statement
for the same offering. [ ]

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

<PAGE>


                         CALCULATION OF REGISTRATION FEE


                                         Proposed        Maximum
Title of each class         Amount        maximum       aggregate     Amount of
 of securities              to be     offering price    offering    registration
to be registered          registered     per item       price (1)       fee
- --------------------------------------------------------------------------------
Common Shares                96,506       $2.1565      $  208,115.18   $   61.39
                             Shares
Common Shares (2)
Underlying conversion
 of Series "D"            1,647,597       $2.1565      $3,553,042.90   $1,048.15
 Preferred Shares           Shares

Common Shares
Underlying exercise of
Common Share Purchase       107,355       $4.81        $  516,377.55   $  152.33
Warrants                   Warrants

                                                                       ---------
 .00295                                     Total registration fee      $1,261.87

(1)  Estimated   solely  for  the  purpose  of  computing   the  amount  of  the
     registration  fee pursuant to Rule 457(c) under the Securities Act of 1933,
     as amended (the  "Securities  Act") on the basis of the average of the high
     and low  sales  prices  for such  Common  Stock on  September  10,  1998 as
     reported on the Nasdaq SmallCap Market.

(2)  For purposes of estimating the number of common shares,  par value $.01 per
     share  ("Common   Shares"),   of  American  Bio  Medica   Corporation  (the
     "Registrant")   to  be  included  in  this   registration   statement  (the
     "Registration Statement"),  the Registrant calculated 200% of the number of
     Common  Shares  issuable  upon the  conversion  at maturity of 2,250 of the
     Registrant's  Series D  Convertible  Preferred  Shares,  par value $.01 per
     share (the  "Series D  Preferred  Shares"),  or  otherwise  pursuant to the
     Certificate  of Designation  of the Series D Preferred  Shares,  based on a
     conversion  price of $2.73125 per share.

(3)  Pursuant  to  Rule  416,  the  Registration  Statement  also  registers  an
     indeterminate  number of Common Shares as may be issued or become  issuable
     upon  conversion  of the  Series D  Preferred  Shares and  exercise  of the
     Warrants in  accordance  with their  respective  terms to prevent  dilution
     resulting from stock splits, stock dividends or similar transactions.

     The  Registrant  hereby amends the  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a  further  amendment  which  specifically  states  that  the  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.

                                       ii

<PAGE>

PROSPECTUS

                        AMERICAN BIO MEDICA CORPORATION
                            1,851,458 Common Shares

     This prospectus (the "Prospectus") relates to the offer and sale by certain
persons  listed  under  "Selling  Shareholders"   (collectively,   the  "Selling
Shareholders")  of an aggregate of up to (a) 1,744,103 common shares,  par value
$.01 per share (the  "Common  Shares") of American Bio Medica  Corporation  (the
"Company")  issued and/or  issuable upon the conversion of the Company's  Series
"D" Convertible  Preferred Shares (the "Series 'D' Preferred Shares") and (b) up
to 107,355 Shares  issuable upon the exercise of common share purchase  warrants
(the "Warrants").  (See "Selling  Shareholders" and "Plan of Distribution.") The
Company  will not  receive  any  proceeds  from the sale of Common  Shares.  The
Company has agreed to pay the  expenses of  registration  of the Common  Shares,
including  legal  and  accounting  fees.  The  Company  has  agreed  to  file an
additional   registration  statement  or  registration  statements  to  register
sufficient  shares such that, from time to time, the number of shares registered
for resale  upon  conversion  of the Series  "D"  Preferred  Shares is twice the
number of shares issuable under the applicable conversion formula.

     The Selling  Shareholders  currently hold 2,250 Series "D" Preferred Shares
and 96,506 Common Shares.

     Each Series "D" Preferred  Share is convertible at the lesser of (a) 95% of
the "Market  Price" (the average of the closing bid prices of the Common  Shares
over any three trading days,  selected by the holder of the Series "D" Preferred
Shares (the "Holder"),  in the 20 trading days immediately preceding the date of
conversion ("Conversion Date") and (b) $4.625. Each Warrant entitles the holders
("Warrantholders")  to purchase  one Common  Share at a price of $4.81 per share
until April 24,  2001.  The exercise  price of the Warrants has been  determined
through  negotiation  between the Company,  the  Warrantholders  and the Selling
Agent (the "Selling  Agent") and such price does not necessarily bear any direct
relationship  to the current market value,  asset value or net book value of the
Company or other  generally  accepted  criteria  of value.  The  formula for the
conversion  of the  Series  "D"  Preferred  Shares  has been  determined  by the
Company, the Holder and the Selling Agent and bears no relation to the Company's
assets, book value, or any other customary  investment  criteria,  including the
Company's  prior  operating  history.  (See  "Risk   Factors--Determination   of
Conversion/Exercise Prices)

     The Common Shares trade on the National  Association of Securities Dealers,
Inc. Automatic  Quotation Market ("Nasdaq SmallCap") under the symbol "ABMC". On
September 10, 1998,  the average of the high and low sales prices for the Common
Shares,  as  reported  on the  Nasdaq  SmallCap  Market  was  $2.703  per share.
Nonetheless, there can be no assurance that a public market in the Common Shares
will be sustained  during the period of exercise of conversion of the Series "D"
Preferred Shares.

<PAGE>

     The Common Shares offered hereby may be sold by the Selling Shareholders or
by pledgees,  donees,  transferees or other  successors in interest that receive
such  shares  as a gift,  partnership  distribution  or other  non-sale  related
transfer. The Common Shares may be sold from time to time in transactions in the
over-the-counter  market, in negotiated  transactions,  or a combination of such
methods  of sale,  at fixed  prices  which  may be  changed,  at  market  prices
prevailing at the time of sale, at prices related to prevailing market prices or
at negotiated prices.  The Selling  Shareholders may effect such transactions by
selling the Common Shares to or through  broker-dealers,  including block trades
in which  brokers or dealers will attempt to sell the Common Shares as agent but
may position and resell the block as principal,  or in one or more  underwritten
offerings on a firm  commitment  or best  efforts  basis.  (For a more  complete
description  of the  manner  in which  Common  Shares  may be  offered  and sold
pursuant hereto see "Plan of Distribution.")

     THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK. THE COMMON
SHARES SHOULD BE PURCHASED ONLY BY INVESTORS WHO ARE ABLE TO AFFORD THE RISK OF
     LOSS OF THEIR ENTIRE INVESTMENT. (SEE "RISK FACTORS" starting on page 6.)

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

         THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
      SECURITIES AND EXCHANGE COMMISSION OR BY ANY STATE OR JURISDICTION,
               NOR HAS THE COMMISSION OR ANY STATE OR JURISDICTION
            PASSED UPON THE ACCURACY OR ADEQUACY OF THE PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.


     The date of the Prospectus is September 28, 1998.

     All  expenses  of this  offering  will be paid by the  Company  except  for
commissions, fees and discounts of any underwriters,  brokers, dealers or agents
retained by the Selling Shareholders.  Estimated expenses payable by the Company
in  connection  with this  offering are  approximately  $31,000.  The  aggregate
proceeds to the Selling  Shareholders from the Common Stock will be the purchase
price of the Common  Shares  sold less the  aggregate  agents'  commissions  and
underwriters' discounts, if any. The Company has agreed to indemnify the Selling
Shareholders  and certain other persons against certain  liabilities,  including
liabilities under the Securities Act.

     CERTAIN PERSONS  PARTICIPATING  IN THE OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE,  MAINTAIN,  OR OTHERWISE  EFFECT THE PRICE OF THE COMMON SHARES,
INCLUDING THE ENTRY OF  STABILIZING  BIDS OR PENALTY BIDS,  EFFECTING  SYNDICATE
COVERING TRANSACTIONS AND PASSIVE MARKET MAKING.

     No dealer,  salesperson or other individual has been authorized to give any
information or to make any  representations  not contained in this Prospectus in
connection with the offering  covered by the Prospectus.  If given or made, such
information or representations must not be relied upon as having been authorized
by the  Company.  The  Prospectus  does  not  constitute  an  offer to sell or a
solicitation of an offer to buy the Common Shares in any jurisdiction  where, or
to any  person  to whom,  it is  unlawful  to make such  offer or  solicitation.
Neither the delivery of the Prospectus  nor any sale  hereunder  shall under any
circumstances,  create any implication that there has not been any change in the
facts set forth in the  Prospectus  or in the affairs of the  Company  since the
date hereof.

                                       2
<PAGE>

                                TABLE OF CONTENTS

     Available Information............................................ 3

     Incorporation of Certain Documents by Reference.................. 4

     The Company...................................................... 5

     Risk Factors..................................................... 6

     Selling Shareholders............................................ 12

     Plan of Distribution............................................ 14

     Legal Matters................................................... 15

     Experts......................................................... 15

                             AVAILABLE INFORMATION

     The Prospectus,  which constitutes a part of a registration  statement (the
"Registration  Statement") filed by the Company with the Securities and Exchange
Commission   (the   "Commission")   under  the  Securities  Act,  omits  certain
information  contained in the  Registration  Statement,  and reference is hereby
made to the  Registration  Statement  and to the exhibits  relating  thereto for
further  information  with respect to the Company and the Common Shares  offered
hereby.  Statements contained herein concerning  provisions of any documents are
not  necessarily  complete,  and each  statement is qualified in its entirety by
reference to the copy of such document filed with the Commission.

     The Company is subject to the informational  requirements of the Securities
Exchange  Act of 1934,  as  amended  (the  "Securities  Exchange  Act"),  and in
accordance therewith files reports, proxy statements, and other information with
the Commission.  Such reports, proxy statements,  and other information filed by
the  Company  can be  inspected  and copied at the public  reference  facilities
maintained by the Commission at 450 Fifth Street,  N.W., Room 1024,  Washington,
D.C.  20549-1004;  and at the  following  Regional  Offices  of the  Commission:
Northeast  Regional Office, 7 World Trade Center,  New York, New York 10007; and
Chicago Regional Office, Northwest Atrium Center, 500 West Madison Street, Suite
1400, Chicago,  Illinois 60661. Copies of such material can be obtained from the
Public  Reference  Section  of  the  Commission  at  450  Fifth  Street,   N.W.,
Washington, D.C. 20549-1004 at prescribed rates. The Commission also maintains a
World Wide Web site on the Internet at http://www.sec.gov.  that contains copies
of reports,  proxy and information  statements and other  information  regarding
registrants,  including the Company,  which electronically file reports with the
Commission.


                                       3
<PAGE>

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents, filed or to be filed with the Commission under the
Securities  Exchange are hereby incorporated by reference into the Prospectus:

(1)  The  Company's  Annual  Report on Form  10-KSB for the year ended April 30,
     1998;

(2)  The  Company's  Quarterly  Report on Form 10-QSB for the quarter ended July
     31, 1998;

(3)  The Company's  Registration  Statement on Form 8-A  registering  the Common
     Shares under Section 12(g) of the Securities Exchange Act; and

(4)  The  Company's  Proxy  Statement  for its  Fiscal  1999  Annual  Meeting of
     Shareholders filed September 11, 1998.

     All documents filed by the Company pursuant to Section 13(a),  13(c), 14 or
15(d) of the Securities  Exchange Act after the date of the Prospectus and prior
to the  termination  of the  offering  shall be  deemed  to be  incorporated  by
reference herein and to be a part hereof from the date of filing such documents.
Any  statements  contained in the  Prospectus or in a document  incorporated  or
deemed to be incorporated by reference  herein shall be deemed to be modified or
superseded  for  purposes  of this  Prospectus  to the extent  that a  statement
contained  herein or in any  subsequently  filed  documents  which also is or is
deemed to be  incorporated  by  reference  herein  modifies or  supersedes  such
statement.  Any such  statement so modified or  superseded  shall not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.

     The Company  will provide  without  charge to each  person,  including  any
beneficial  owner,  to whom the Prospectus has been  delivered,  upon written or
oral request of such  person,  a copy of any or all of the  documents  that have
been incorporated by reference herein (not including  exhibits to such documents
unless such exhibits are  specifically  incorporated by reference herein or into
such  documents).  Such  requests  may be  directed  to  John F.  Murray,  Chief
Financial Officer, American Bio Medica Corporation, 300 Fairview Avenue, Hudson,
New York 12534, telephone (800) 227-1243.

                                       4
<PAGE>

                                   THE COMPANY

     The  following  summary is  qualified  in its  entirety by reference to the
detailed information, financial statements and related notes appearing elsewhere
in the Prospectus  including  information under the caption "Risk Factors." Each
investor is urged to read the Prospectus in its entirety.

     American Bio Medica  Corporation  (the  "Company") is primarily  engaged in
acquiring,  developing and marketing biomedical  technologies and products.  The
Company owns a technology for screening  drugs of abuse,  trademarked the "Rapid
Drug Screen." The Company's common shares ("Common  Shares") trade on the Nasdaq
SmallCap Market.

     The Company  produces several version of a "drugs of abuse" screening test,
called the "Rapid Drug Screen  Test" at its  manufacturing  facility in Columbia
County,  New York. The Rapid Drug Screen Test is a one-step test kit that allows
a small urine sample to be tested for the presence or absence of drugs of abuse.
The competitively priced test is self-contained  preventing exposure of the test
administrator   to  the  urine  sample.   In  the  opinion  of  the   Management
("Management"),  the  Rapid  Drug  Screen  Test,  which  requires  no  mixing of
reagents,  is easier to use than any competitive product. In addition,  hundreds
of controlled  tests  conducted by independent  laboratories  compared the Rapid
Drug Screen Test with results  produced by EMIT II, a standard  laboratory test,
and found a 100%  correlation  of both positive and negative test results.  As a
result,  Management  believes  that the Rapid Drug Screen Test is as accurate as
that laboratory test.

     Versions of the Rapid Drug Screen  Tests  include a two panel  (cocaine and
marijuana), five panel (cocaine, marijuana, opiates, amphetamine and PCP) and an
eight  panel  (THC,  cocaine,   opiates,  PCP,  amphetamines,   benzodiazepines,
methamphetamines  and  barbiturates)  test. All have been cleared by the Federal
Drug  Administration  (the  "FDA") and can thus be sold in  clinical  as well as
workplace  markets.  The  Company  has  also  completed  a  test  for  tricyclic
antidepressants  which it has  submitted  to the FDA for  approval  and which it
intends to market in the near future as part of a nine-panel  test.  The Company
has recently developed nine tests trademarked "Rapid One", each of which detects
one drug of abuse and a low volume 8 panel test which  requires as little as two
milliliters of urine, compared with the usual 15-30 milliliters.  The low volume
8 panel Rapid Drug Screen, which has received FDA 510(k) clearance, is ideal for
use in hospital settings as well as for compliance with laboratory certification
and quality control requirements.

     The Company has installed and uses equipment at its manufacturing  facility
suitable  for the  mass  production  of  workplace  drug  screening  tests.  The
Company's  output was  initially  hampered by its  inability to secure  reliable
supplies of reagents.  This problem was rectified in May, 1997 through  improved
reliability of its suppliers and the addition of a third supplier.

     The  Company  also owns a patented  low cost method for  producing  keratin
proteins.  The Company has no intention of  developing  or marketing its keratin
technology,  but intends to  concentrate  on the production and marketing of its
drug screen tests and pursuing development and acquisition strategies related to
substance abuse testing.

                                       5
<PAGE>

     The Company may develop or acquire  additional  biomedical  technologies or
products in the future unrelated to substance abuse.

     From its  inception  in 1986  until  1991,  the  Company  was  involved  in
marketing  educational books and software to schools and municipal libraries and
audiovisual educational packages to educational institutions and to corporations
throughout  the United  States.  In 1991,  the  Company,  because of  heightened
competition,  increased  costs of doing  business  and  slow  collections  from
municipalities,  reduced  its  involvement  in this  market  to that of  selling
audiovisual  packages to libraries and  commenced  seeking new  technologies  in
emerging medical markets.

     The Company's  headquarters are located at 300 Fairview Avenue, Hudson, New
York 12534.  Its telephone  number at that address is  800-227-1243  and its fax
number is 518-822-0391. Its e-mail address is [email protected].


                                  RISK FACTORS

     Except for the  description  of  historical  facts  contained  herein,  the
Prospectus  contains  certain forward looking  statements that involve risks and
uncertainties as detailed herein and from time to time in the Company's  filings
with the Commission and elsewhere.  Forward looking  statements  herein are made
pursuant to the "safe harbor"  provisions of the Private  Securities  Litigation
Reform  Act  of  1995.  Such  statements  are  based  on  Management's   current
expectations  and are  subject to a number of factors  and  uncertainties  which
could cause  actual  results to differ  materially  from those  described in the
forward-looking  statements.  These factors include, among others, the Company's
fluctuations in sales and operating results, risks associated with international
operations  and  regulatory,  competitive  and  contractual  risks  and  product
development.

     PURCHASE OF COMMON SHARES IS HIGHLY SPECULATIVE,  INVOLVES A HIGH DEGREE OF
RISK AND  SHOULD  BE MADE ONLY BY  INVESTORS  WHO CAN  AFFORD  THE LOSS OF THEIR
ENTIRE  INVESTMENT.  A  PROSPECTIVE  PURCHASER,  PRIOR TO MAKING  AN  INVESTMENT
DECISION,  SHOULD  CAREFULLY  CONSIDER,  ALONG WITH OTHER  MATTERS  REFERRED  TO
HEREIN, THE FOLLOWING RISK FACTORS:

     1. Limited Operating History.

     Although  the  Company  was  formed  in  1986,  as far as the  development,
manufacture  and sale of drug  testing  kits  are  concerned,  it has  extremely
limited  operational  history upon which investors may base an evaluation of its
performance  or any  assumption  as to the  likelihood  that the Company will be
profitable.  The Company's  prospects  must be considered in light of the risks,
expenses,  delays,  problems  and  difficulties  frequently  encountered  in the
establishment of a new business,  the development and  commercialization  of new
products based on innovative technology and the competitive environment in which
the Company  operates.  Since the Company's entry into the biomedical  business,
the Company has generated limited  revenues.  There can be no assurance that the
Company  will be able to generate  significant  revenues  or achieve  profitable
operations.

                                       6
<PAGE>

     2.  Technological  Factors;  Uncertainty of Product  Development;  Unproven
Technology.

     Although the Company's  development  efforts relating to the  technological
aspects  of the  workplace  drug  testing  kit are  completed,  the  Company  is
continually  seeking to refine and  improve  its design and  performance  and to
develop additional versions.  The Company's efforts remain subject to all of the
risks inherent in new product development,  including  unanticipated  technical,
regulatory or other  problems  which could result in material  delays in product
development or commercialization  or significantly  increased costs. The Company
may be required to commit considerable additional efforts, time and resources to
develop production  versions of its additional  products.  The Company's success
will depend upon such products  meeting  targeted product costs and performance,
and may also depend upon their timely  introduction into the marketplace.  There
can be no assurance that development of the Company's  proposed products will be
successfully  completed  on a timely  basis,  if at all,  that  they  will  meet
projected  price or performance  objectives,  satisfactorily  perform all of the
functions  for  which  they are  being  designed,  or  prove to be  sufficiently
reliable  in  widespread  commercial  application.  Moreover,  there  can  be no
assurance   that   unanticipated   problems  will  not  arise  with  respect  to
technologies  incorporated  into its test kits or that product  defects will not
become  apparent after  commercial  introduction of its additional test kits. In
the event that the Company is required to remedy  defects in any of its products
after  commercial  introduction,  the costs to the Company could be significant,
which could have a material adverse effect on the Company revenues or earnings.

     3. Uncertainty of Continued Market Acceptance.

     The  Company's  drug  test  kits have  been  well  received  by  customers,
including  corporations,  distributors  and  correctional  institutions.  As  is
typically the case with an emerging  company,  demand and market  acceptance for
newly introduced  products is subject to a high level of uncertainty.  Achieving
continued  market  acceptance  for  its  drug  tests  will  require  substantial
marketing  efforts and  expenditure  of  significant  funds to inform  potential
distributors  and  customers of the  distinctive  characteristics,  benefits and
advantages of its kits.  There can be no assurance  that its drug test kits will
become  generally  accepted  or  that  the  Company's  efforts  will  result  in
successful product  commercialization  or initial or continued market acceptance
for its other drug testing  products.  In addition,  continued market acceptance
will depend on the Company's ability to upgrade its technology

     4. Competition in the Drug Testing Market; Technological Obsolescence.

     The Company faces  competition for every existing and proposed product from
drug  manufacturers  and  other  manufacturers  of drug test  kits.  Some of its
competitors  are well known and have far greater  financial  resources  than the
Company.  To  the  best  of  Management's  knowledge,  and in  its  opinion,  no
competitors  have introduced  products which equal the ease of use combined with
the accuracy of the Company's drug test kits. The markets for drug test kits and
related  products are highly  competitive.  There can be no assurance that other
technologies or products which are functionally  similar to those of the Company
are not currently under development. In addition, there can be no assurance that
other  companies  with the expertise or resources  that would  encourage them to
attempt to develop or market  competing  products  will not develop new products
directly  competitive with the Company's drug test kits. Despite the protections
which would be available to the Company in the event its pending application for
a design patent is granted,  the Company  expects other  companies to attempt to
develop technologies or products which will compete with the Company's products.
In addition, continued market acceptance will depend on the Company's ability to
upgrade its technology to meet any future competitive technologies.


                                       7
<PAGE>

     5. Dilution as a Result of  Conversion  of Series "D" Preferred  Shares and
Exercise of Warrants.

     The Selling  Shareholders  purchased  2,500  Series "D"  Preferred  Shares,
converted 250 Series "D" Preferred Shares into 96,506 Common Shares and now hold
2,250 Series "D" Preferred  Shares of the Company,  which are  convertible  into
Common Shares.  See "Selling  Shareholders."  Each Series "D" Preferred Share is
convertible into a number of Common Shares equal to (i) $1,000 (ii) divided by a
conversion  price  which is the  lesser of (a) 95% of the  "Market  Price"  (the
average of the  closing bid prices of the Common  Shares over any three  trading
days,  selected  by the  holder of the  Series  "D"  Preferred  Shares in the 20
trading days immediately preceding the date of conversion) and (b) $4.625. Under
the  applicable  conversion  formulas of the Series "D"  Preferred  Shares,  the
number of Common Shares  issuable upon  conversion is inversely  proportional to
the  market  price of the Common  Shares at the time of  conversion  (i.e.,  the
number of shares increases as the market price of the Common Shares  decreases);
and except  with  respect to certain  redemption  rights of the  Company for the
Series "D" Preferred Shares and the limitation under Nasdaq SmallCap regulations
which limit the aggregate amount of Common Shares which the Company may issue at
a discount from market price upon conversion of the Series "D" Preferred  Shares
and Warrants without shareholder  approval,  (such shareholder  approval will be
requested  by the  Company),  there is no cap on the  number of shares of Common
Shares which may be issued.  In addition,  the number of Common Shares  issuable
upon the  conversion  of the Series "D"  Preferred  Shares and the  exercise  of
Warrants  is subject  to  adjustment  upon the  occurrence  of certain  dilutive
events.  For a further  description  of the  rights  of  holders  of Series  "D"
Preferred   Shares,   see  the   Certificate  of  Amendment  of  Certificate  of
Incorporation  of  American  Bio Medica  Corporation  filed as an exhibit to the
Company's  Current  Report  on Form  8-K,  dated  April 27,  1998.  The  Selling
Shareholders also hold outstanding Warrants to acquire a total of 107,355 Common
Shares at a price of $4.81 share.  All of such Common  Shares are covered by the
registration  statement  containing  this  Prospectus  or  will  be  covered  by
subsequent  registration  statements  filed by the Company,  if  necessary.  The
exercise of such Warrants and conversion of such Series "D" Preferred Shares and
the sale of such Common Shares could have a significant  negative  effect on the
market  price of the Common  Shares and could  materially  impair the  Company's
ability to raise capital through the future sale of equity securities.

     6. Possible Inability to Find and Attract Qualified Personnel.

     The Company  currently  has  sufficient  management  expertise and depth to
develop  its  business.  It  has  recently  added  marketing  and  manufacturing
management and has added to its scientific advisory board. However, it will need
additional  skilled and dedicated  marketing  personnel as well as technical and
production  personnel in the future.  There is no guarantee that the Company can
retain its present staff or that capable  personnel with relevant skills will be
available.

     7. Dependence on Management.

     The Company is dependent on the expertise and experience of Stan Cipkowski,
President,   Jay  Bendis,   Vice-President-Marketing,   and  Douglas  Casterlin,
Vice-President  and General  Manager,  for its  operations.  The loss of Messrs.
Cipkowski,  Bendis and Casterlin,  or any of them,  will  seriously  inhibit the
Company's operations. The Company does not maintain key man insurance for any of
its management employees.

                                       8
<PAGE>

     8. Possible Adverse Changes in Regulatory Framework.

     Clearance  from the FDA is not required for the sale of workplace drug test
kits,  but is required  for  clinical  drug test kits.  The Company has received
"510(k)"  clearance  from the FDA for its two,  five and eight  panel  drug test
kits.  It is awaiting FDA  clearance of one test of its nine panel drug test kit
and is  preparing  the  application  for its Rapid  One drug test kit.  However,
regulatory  standards may change in the future and there is no assurance that if
and when the Company applies for additional clearances from the FDA they will be
granted.

     9. Resale of Restricted Securities.

     5,220,571  Common Shares  presently  issued and  outstanding as of the date
hereof are "restricted  securities" as that term is defined under the Securities
Act of 1933, as amended, (the "Securities Act") and in the future may be sold in
compliance  with Rule 144 of the  Securities  Act, or pursuant to a Registration
Statement filed under the Securities Act. Rule 144 provides,  in essence, that a
person  holding  restricted  securities  for a period of one year may sell those
securities in  unsolicited  brokerage  transactions  or in  transactions  with a
market  maker,  in an amount equal to one percent of the  Company's  outstanding
Common Shares every three months.  Sales of unrestricted shares by affiliates of
the Company are also  subject to the same  limitation  upon the number of shares
that may be sold in any three month period. Such information is deemed available
if the issuer  satisfies the reporting  requirements  of sections 13 or 15(d) of
the  Securities and Exchange Act of 1934 (the  "Securities  Exchange Act") or of
Rule 15c2-11  thereunder.  Rule 144(k) also permits the  termination  of certain
restrictions  on  sales  of  restricted  securities  by  persons  who  were  not
affiliates  of the Company at the time of the sale and have not been  affiliates
in the  preceding  three  months.  Such  persons must satisfy a two year holding
period.  There is no  limitation  on such  sales  and  there  is no  requirement
regarding  adequate current public  information.  Investors should be aware that
sales under Rule 144 or 144(k),  or pursuant to a registration  statement  filed
under the Act, may have a depressive effect on the market price of the Company's
securities in any market which may develop for such shares.

     10. Need for Additional Financing.

     The Company  expects that its cash on hand will be  sufficient  to fund the
Company's  proposed  operations  for at  least  12  months  from the date of the
Prospectus.  This estimate is based on certain  assumptions  and there can be no
assurance  that  unanticipated  unbudgeted  costs will not be  incurred.  Future
events,  including the problems,  delays, expenses and difficulties which may be
encountered  in  establishing  and  maintaining  a  substantial  market  for the
Company's  drug  test  kits  and  other  technologies  could  make  cash on hand
insufficient  to  fund  the  Company's  proposed  operations.  There  can  be no
assurance  that the  Company  will be able to obtain  any  necessary  additional
financing  on terms  acceptable  to it, if at all. In  addition,  financing  may
result in further  dilution to the  Company's  then existing  stockholders.  The
Company has no established borrowing  arrangements or available lines of credit.
                                       9
<PAGE>

     11. No Dividends.

     The payment of dividends rests within the discretion of the Company's Board
of Directors.  No dividends  have been paid on the Common Shares and the Company
does not anticipate the payment of cash dividends in the foreseeable  future. If
the operations of the Company become profitable, it is anticipated that, for the
foreseeable  future,  any  income  received  therefrom  would be  devoted to the
Company's  future  operations and that cash  dividends  would not be paid to the
Company's shareholders.

     12. Control by Management.

     Management of the Company owns in excess of 36% of the  outstanding  Common
Shares and is in a position to control the  election of the Board of  Directors.
The certificate of  incorporation of the Company does not provide for cumulative
voting and, as a result, purchasers of the Company's securities will not be able
to elect any  directors  or exert any control  over the general  policies of the
Company.

         13. Ability to Retain and Attract Market Makers.

     The Common Shares trade on the Nasdaq  SmallCap  Market.  In the event that
the market makers cease to function as such, public trading in the Common Shares
will be adversely affected or may cease entirely.  Presently,  market makers for
the  Company's  Common  Shares  include GVR Co.,  Fahnestock & Co.,  Inc.,  Hill
Thompson  Magid & Co., J.B.  Oxford & Co., Kalb Voorhis & Co., LLC, Nash Weiss &
Co., Inc., Paragon Capital Corp.,  Troster Singer Corp.,  Comprehensive  Capital
Corp., Herzog, Heine, Geduld, Inc., Mayer & Schweitzer, Inc., Knight Securities,
Ltd., Naib Trading Corp.,  National Financial  Securities Corp., Sharpe Capital,
Inc. and Wien Securities Corp.,  Sherwood  Securities Corp., H. J. Meyers & Co.,
Inc., M. H. Meyerson & Co., Inc. and National Financial Service Corp.

     14. Anti-Takeover Provisions in Certificate of Incorporation.

     The  Company's  certificate  of  incorporation  authorizes  the issuance of
5,000,000  Preferred Shares.  The Board of Directors has the authority,  without
further action by the Common  Shareholders,  to issue Preferred Shares from time
to  time  in one or  more  classes  or  series,  to fix  the  number  of  shares
constituting any class or series and the stated value thereof, if different from
the par  value,  and to fix the terms of any such  series  or  class,  including
dividend rights,  dividend rates,  conversion or exchange rights, voting rights,
rights  and  terms  of  redemption  (including  sinking  fund  provisions),  the
redemption price and the liquidation  preference of such class or series.  Thus,
the  Board of  Directors,  in order to avoid a  hostile  takeover,  could  issue
Preferred Shares with supervoting rights,  conversion rights into Common Shares,
liquidation  preference or a combination of rights and  preferences  which could
inhibit  success of such attempt.
                                       10
<PAGE>

     15. Determination of Conversion/Exercise Prices.

     The formula for the  conversion of the Series "D" Preferred  Shares and the
exercise of the Warrants into Common  Shares has been  determined by the Company
and the holders  thereof and bears no relation  to the  Company's  assets,  book
value, or any other customary investment criteria, including the Company's prior
operating history.

     16. Patents and Trademarks.



     The Company has registered "ABM" and its logo in the United States, Canada,
Chile and Mexico and has registered  "Rapid Drug Screen" in Mexico.  The Company
has additional  trademark  applications  pending in the United  States,  Canada,
Philippines  and in 15 European  countries.  The  Company's  trademark  counsel,
Edmund Jaskiewicz, Esq., Executive Vice-President,  has opined that there are no
similar marks and, as a consequence, the Company feels confident that such marks
will be  registered.  The Company has  applied for various  patents  directly in
numerous countries,  including the United States, Canada, Australia,  Argentina,
Brazil,  China,  Japan,  Germany,  Mexico,  Philippines,  Poland  and the United
Kingdom  and has filed  patent  applications  with three  regional  associations
covering 33 additional member countries. Stan Cipkowski, President, has assigned
to the Company for no  consideration,  his  application for a utility and design
patent in the United States and Canada on the drug screen kit as an entity.  Mr.
Jaskiewicz,  as  patent  counsel,  has  opined  that a search  has  revealed  no
competing patented products.  However, there can no assurance that a patent will
be  granted  or that,  if  granted,  it will  withstand  challenge.

     17. Litigation Relating to Acquisition of Technologies.

     In  February  1994,  Robert  Friedenberg,  as  owner  of  the  two  medical
technology companies acquired by the Company, in the name of those corporations,
filed suit to have a share exchange agreement rescinded on the grounds of breach
of  contract.  In order to preserve a claim for  damages,  the  Company  filed a
third-party  claim  against Dr.  Friedenberg,  for breach of the Share  Exchange
Agreement.   In  November  1995,   after  a  trial,   the  court  dismissed  Dr.
Friedenberg's  lawsuit and allowed the Company's third-party claim to proceed to
trial. In September, 1996, Dr. Friedenberg died.

     That trial was  decided by a jury on May 5, 1997.  The  verdict  determined
that Dr. Friedenberg  breached various  contracts,  including the Share Exchange
Agreement,  when he failed to deliver  technology to the Company.  The jury also
found in favor of the  Company  on two of the three  fraud  claims  against  Dr.
Friedenberg  and  awarded  the Company  approximately  $321,000 in damages.  Dr.
Friedenberg's  estate,  just prior to the jury trial, filed a supplemental claim
for the shares of the  Company's  stock which he would have  received  under the
Share Exchange Agreement which the trial judge took under advisement.  The trial
judge, on July 17, 1998 ruled that the estate of Dr.  Friedenberg is entitled to
5,907,154  common  shares of the  Company.  The  Company  has  taken an  appeal.
Management  of the Company in  consultation  with counsel is of the opinion that
the trial  judge's  award of the  shares  to Dr.  Friedenberg's  estate  will be
reversed on appeal.

                                       11
<PAGE>

                              SELLING SHAREHOLDERS

     The following table sets forth the names of the Selling  Shareholders,  the
number of Common Shares owned  beneficially by each of the Selling  Shareholders
as of July 31,  1998,  and the number of Common  Shares which may be offered for
sale pursuant to the Prospectus. Because the Selling Shareholders may offer all,
some or none of their Common Shares, no definitive  estimate as to the number of
Common Shares that will be held by the Selling  Shareholders after such offering
can be provided and the following table has been prepared on the assumption that
all Common Shares covered by this Prospectus will be sold.

     The Company has agreed  initially to register  1,744,103  Common Shares for
resale after  conversion  of the Series "D" Preferred  Shares,  all of which are
covered by this  Prospectus and to register for resale the 107,355 Common Shares
issuable upon exercise of the Warrants.

     Unless  otherwise  indicated,  the persons and entities  named in the table
have sole voting and sole  investment  power with  respect to all Common  Shares
beneficially owned, subject to community property laws where applicable. Except,
as noted below, the Selling  Shareholders  have not held any position or office,
or had any material  relationship with the Company or any of its predecessors or
affiliates within the last three years.
<TABLE>
<CAPTION>

                                                                               
                   PERCENTAGE
                    SHARES OF          NUMBER OF      PERCENTAGE OF            
  COMMON SHARES   COMMON SHARES
                 PREFERRED SHARES     BENEFICIALLY    BENEFICIALLY     SHARES  
  BENEFICIALLY    BENEFICIALLY
                  OWNED PRIOR TO      OWNED PRIOR     OWNED PRIOR      BEING   
   OWNED AFTER     OWNED AFTER
     NAME           OFFERING         TO OFFERING (1)  TO OFFERING      OFFERED 
    OFFERING        OFFERING
     ----        ---------------     --------------   -------------    ------- 
  -------------   -------------
<S>                  <C>             <C>                <C>           <C>      
      <C>             <C>

CC Investments,
  LDC                2,250           740,099 (2)        4.9 (2)(3)    1,844,103
      -0-             0%
Shoreline
  Pacific
  Institutional
  Finance            -0-               7,355 (3)            *             7,355
      -0-             0%
- --------------
* less than 1%
</TABLE>

                                       12
<PAGE>

(1)  Beneficial  ownership is  determined  in  accordance  with the rules of the
     Securities  and  Exchange  Commission  and  generally  includes  voting  or
     investment  power with respect to  securities  and includes any  securities
     which the person has the right to acquire  within 60 days of September  10,
     1998 through the conversion or exercise of any security or other right.

(2)  Includes  96,506 Common  Shares,  and 823,799  Common Shares  issuable upon
     conversion of the Series "D" Preferred  Shares  calculated using an assumed
     conversion  price of $2.73125 per share  (representing  95% of a $2.875 per
     share  assumed  Market  Price)  and the  stated  value  of the  Series  "D"
     Preferred Shares. The Series "D" Preferred Shares were issued pursuant to a
     Securities Purchase  Agreement,  dated April 24, 1998 (the "Closing Date").
     Each Series "D"  Preferred  Share has a face amount of $1,000 and converts,
     subject to certain  restrictions,  into a number of Common  Shares equal to
     $1,000 divided by a variable  conversion rate equal to the lower of (a) 95%
     of the Market Price and (b) $4.625. Pursuant to the terms of the Series "D"
     Preferred  Shares and the  Warrants,  no holder  thereof  can  convert  any
     portion of such Series "D"  Preferred  Shares or exercise  any  Warrants if
     such  conversion  or  exercise  would  increase  such  holder's  beneficial
     ownership of Common Shares to in excess of 4.9%. Absent such limitations at
     the $2.73125 per share  conversion  price the Series "D"  Preferred  Shares
     held by CC Investments, LDC would have been convertible into 823,799 Common
     Shares,  which,  when added to the 96,506 Common  Shares  received from the
     conversion of 250 Series "D" Preferred  Shares and 100,000 shares  issuable
     upon  exercise  of  Warrants,  would  have  represented  6.7% of the Common
     Shares. (The ownership  limitations may be waived by a holder of Series "D"
     Preferred  Shares  or  Warrants  (the  "Selling  Shareholder")  on 90  days
     notice.)  The  number  of  Common   Shares   registered   pursuant  to  the
     Registration  Statement on behalf of the Selling Shareholder holding Series
     "D" Preferred Shares and the number of Common Shares offered hereby by such
     holder  have been  determined  by  agreement  between  the Company and such
     Selling  Shareholder.  Because  the  number  of  Common  Shares  that  will
     ultimately be issued upon conversion of the Series "D" Preferred  Shares is
     dependent,  subject to  certain  limitations,  upon the  average of certain
     closing bid prices of the Common Shares prior to  conversion,  as described
     above, and certain antidilution  adjustments,  such number of Common Shares
     (and therefore the number of Common Shares to ultimately be offered hereby)
     cannot be determined at this time.  Moreover,  pursuant to Nasdaq  SmallCap
     regulations,  the  Company  may be subject  to a  limitation  that,  in the
     absence of  shareholder  approval,  the  aggregate  number of Common Shares
     issuable to the Selling  Shareholders  at a discount from market price upon
     conversion of the Series "D" Preferred  Shares and exercise of the Warrants
     may not exceed 20% of the  outstanding  Common Shares.  Unless  shareholder
     approval is obtained to issue Common Shares to the Selling  Shareholders in
     excess  of such  maximum  amount  set  forth  above,  none  of the  Selling
     Shareholders will be entitled to acquire more than its proportionate  share
     of such maximum  amount.  Any Series "D" Preferred  Shares which may not be
     converted  and any  Warrants  which may not be  exercised  because  of such
     limitation must be redeemed by the Company

(3)  Consists of Warrants to purchase  7,355 Common Shares by Shoreline  Pacific
     Institutional  Finance in connection  with such  company's  role as Selling
     Agent for the  private  placement  of the  Series "D"  Preferred  Shares in
     April, 1998.

                                       13
<PAGE>

                             PLAN OF DISTRIBUTION

     The Common Shares will be offered and sold by the Selling  Shareholders for
their own  accounts.  The Company will not receive any proceeds from the sale of
the Common Shares pursuant to this Prospectus. The Company has agreed to pay the
expenses of  registration  of the Common Shares,  including legal and accounting
fees.

     The Common Shares offered hereby may be sold by the Selling Shareholders or
by pledgees,  donees,  transferees or other  successors in interest that receive
such  shares  as a gift,  partnership  distribution  or other  non-sale  related
transfer. The Common Shares may be sold from time to time in transactions in the
over-the-counter  market, in negotiated  transactions,  or a combination of such
methods  of sale,  at fixed  prices  which  may be  changed,  at  market  prices
prevailing at the time of sale, at prices related to prevailing market prices or
at negotiated  prices.  The Selling  Shareholders may effect such transaction by
selling the Common Shares to or through  broker-dealers,  including block trades
in which  brokers or dealers will attempt to sell the Common Shares as agent but
may position and resell the block as principal,  or in one or more  underwritten
offerings  on a  firm  commitment  or  best  efforts  basis.  Sales  of  Selling
Shareholders'  Common  Shares  may also be made  pursuant  to Rule 144 under the
Securities Act, where applicable.

     To the extent  required under the Securities  Act, the aggregate  amount of
Selling Shareholders' Common Shares being offered and the terms of the offering,
the  names  of any  such  agents,  brokers,  dealers  or  underwriters  and  any
applicable commission with respect to a particular offer will be set forth in an
accompanying Prospectus supplement. Any underwriters, dealers, brokers or agents
participating in the distribution of the Common Shares may receive  compensation
in the form of underwriting discounts,  concessions,  commissions or fees from a
Selling  Shareholder and/or purchasers of Selling  Shareholders'  Common Shares,
for whom they may act (which compensation as to a particular broker-dealer might
be in excess of customary commissions).

     From time to time,  one or more of the Selling  Shareholders  may transfer,
pledge,  donate or assign such Selling Shareholders' Common Shares to lenders or
others and each of such persons will be deemed to be a "Selling Shareholder" for
purposes of this Prospectus.  The number of Selling  Shareholders' Common Shares
beneficially owned by those Selling Shareholders who so transfer, pledge, donate
or assign  Selling  Shareholders'  Common  Shares will decrease as and when they
take such actions.  The plan of distribution  for Selling  Shareholders'  Common
Shares  sold  hereunder  will  otherwise  remain  unchanged,   except  that  the
transferees,  pledgees,  donees or other successors will be Selling Shareholders
hereunder.

     A  Selling   Shareholder   may  enter  into   hedging   transactions   with
broker-dealers  and the  broker-dealers  may engage in short sales of the Common
Shares in the course of hedging the  positions  they  assume  with such  Selling
Shareholder,  including, without limitation, in connection with distributions of
the Common Shares by such  broker-dealers.  In addition,  a Selling  Shareholder
may, from time to time, sell short the Common Shares of the Company, and in such
instances,  this Prospectus may be delivered in connection with such short sales
and the Common Shares  offered  hereby may be used to cover such short sales.  A
Selling  Shareholder  may also  enter  into  option or other  transactions  with
broker-dealers   that  involve  the  delivery  of  the  Common   Shares  to  the
broker-dealers,  who may then resell or otherwise transfer such Common Shares. A
Selling Shareholder may also loan or pledge the Common Shares to a broker-dealer
and the broker-dealer may sell the Common Shares so loaned or upon a default may
sell or otherwise transfer the pledged Common Shares.

                                       14
<PAGE>

     Common  Shares to be sold  hereunder  may be issued upon  conversion of the
Series  "D"  Preferred  Shares  in  accordance  with  their  terms,  or in other
transactions  with the  Company  involving  the  Series  "D"  Preferred  Shares,
including, without limitation,  issuance of Common Shares in exchange for Series
"D" Preferred  Shares and issuance of Common Shares  pursuant to modification of
the terms of the Series "D"  Preferred  Shares,  or in settlement of claims with
respect to rights of holders of Series "D" Preferred Shares.

     In  order  to  comply  with  the  securities  laws of  certain  states,  if
applicable,  the Common Shares will be sold in such  jurisdictions  only through
registered or licensed  brokers or dealers.  In addition,  in certain states the
Common Shares may not be sold unless they have been  registered or qualified for
sale  in  the  applicable  state  or  an  exemption  from  the  registration  or
qualification requirement is available and is complied with.

     The Selling  Shareholders and any  broker-dealer or agents that participate
with the Selling Shareholders in the distribution of the Shares may be deemed to
be "underwriters" within the meaning of Section 2(11) of the Securities Act, and
any  commissions  received  by them and any  profit on the  resale of the Common
Shares  purchased  by them  may be  deemed  to be  underwriting  commissions  or
discounts under the Securities Act.


                                  LEGAL MATTERS

     The validity of the  securities  offered by the  Prospectus is being passed
upon for the Company by Joel Pensley, Esq., 276 Fifth Avenue, New York, New York
10023. Joel Pensley is the owner of 5,000 Common Shares and 30,000  Nonstatutory
Options.

                                     EXPERTS

     The    financial  statements  of the  Company  as of April 30,  1997
appearing  in the Annual  Report of the  Company for the fiscal year ended April
30, 1997 have been  audited by Thomas P.  Monahan,  CPA, an  independent  public
accountant,  as indicated in his report with respect  thereto,  and are included
herein  in  reliance  upon his  report  given as an  expert  in  accounting  and
auditing.

     The financial  statements of American Bio Medica  Corporation as of and for
the year ended  April 30, 1998  included in the Annual  Report on Form 10-KSB of
the  Company  for the  fiscal  year ended  April 30,  1998 and  incorporated  by
reference  herein  have been  audited  by  Richard  A.  Eisner &  Company,  LLP,
independent auditors, as indicated in their report with respect thereto, and are
included herein in reliance upon their report given as experts in accounting and
auditing.

                                       15
<PAGE>

                         AMERICAN BIO MEDICA CORPORATION
                                     Part II
                     Information Not Required in Prospectus

 Item 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     The expenses  payable by the Registrant in connection with the issuance and
distribution of the securities are estimated as follows:

                                                 Amount
                                                --------
SEC Registration Fee                            $  1,262
Legal Fees and Expenses                         $ 20,000
Accounting                                      $  7,500
Transfer Agent Fees                             $  1,000
Miscellaneous                                   $  1,238
                                                --------
                               Total            $ 31,000

     Item 15. Indemnification of Directors and Officers

     The New York Business  Corporation Law provides for the  indemnification of
the  Company's  officers,  directors  and  corporate  employees and agents under
certain circumstances as follows:

     721 NONEXCLUSIVITY OF STATUTORY PROVISIONS FOR INDEMNIFICATION OF DIRECTORS
AND OFFICERS.

     The  indemnification  and advancement of expenses  granted  pursuant to, or
provided by, this article  shall not be deemed  exclusive of any other rights to
which a director or officer seeking  indemnification  or advancement of expenses
may be entitled,  whether  contained in the certificate of  incorporation or the
by-laws or, when authorized by such certificate of incorporation or by-laws, (i)
a resolution  of  shareholders,  (ii) a  resolution  of  directors,  or (iii) an
agreement providing for such  indemnification,  provided that no indemnification
may be made to or on behalf of any  director  or officer if a judgment  or other
final adjudication  adverse to the director or officer establishes that his acts
were  committed  in bad  faith or were  the  result  of  active  and  deliberate
dishonesty and were material to the cause of action so  adjudicated,  or that he
personally  gained in fact a financial profit or other advantage to which he was
not legally entitled.  Nothing contained in this article shall affect any rights
to  indemnification  to which  corporate  personnel  other  than  directors  and
officers may be entitled by contract or otherwise under law.

                                       iii
<PAGE>

     722 AUTHORIZATION FOR INDEMNIFICATION OF DIRECTORS AND OFFICERS.

(a)  A corporation  may indemnify any person,  made, or threatened to be made, a
     party to an action or  proceeding  other than one by or in the right of the
     corporation to procure a judgment in its favor,  whether civil or criminal,
     including an action by or in the right of any other corporation of any type
     or kind,  domestic or foreign,  or any  partnership  joint venture,  trust,
     employee benefit plan or other enterprise, which any director or officer of
     the corporation  served in any capacity at the request of the  corporation,
     by reason of the fact that he, his testator or intestate, was a director or
     officer of the corporation, or served such other corporation,  partnership,
     joint  venture,  trust,  employee  benefit plan or other  enterprise in any
     capacity,  against  judgments,   fines,  amounts  paid  in  settlement  and
     reasonable  expenses,  including  attorneys'  fees actually and necessarily
     incurred as a result of such action or proceeding,  or any appeal  therein,
     if such director or officer  acted,  in good faith,  for a purpose which he
     reasonably  believed  to be in,  or, in the case of  service  for any other
     corporation or any partnership, joint venture, trust, employee benefit plan
     or other enterprise,  not opposed to, the best interests of the corporation
     and, in criminal  actions or  proceedings,  in addition,  had no reasonable
     cause to believe that his conduct was unlawful.

(b)  The  termination  of any such civil or  criminal  action or  proceeding  by
     judgment, settlement,  conviction or upon a plea of nolo contendere, or its
     equivalent, shall not in itself create a presumption that any such director
     or officer did not act, in good faith,  for a purpose  which he  reasonably
     believed to be in, or, in the case of service for any other  corporation or
     any  partnership,  joint  venture,  trust,  employee  benefit plan or other
     enterprise,  not opposed to, the best interests of the  corporation or that
     he had reasonable cause to believe that his conduct was unlawful.

(c)  A  corporation  may  indemnify any person made, or threatened to be made, a
     party to an  action  by or in the  right of the  corporation  to  procure a
     judgment  in its  favor  by mason of the fact  that  he,  his  testator  or
     intestate, is or was a director or officer of the corporation, or is or was
     seeing at the  request of the  corporation  as a director or officer of any
     other  corporation  of any  type  or  kind,  domestic  or  foreign,  of any
     partnership,   joint  venture,   trust,  employee  benefit  plan  or  other
     enterprise,  against  amounts paid in settlement and  reasonable  expenses,
     including  attorneys'  fees,  actually and  necessarily  incurred by him in
     connection with the defense or settlement of such action,  or in connection
     with an appeal  therein if such director or officer  acted,  in good faith,
     for a purpose  which he  reasonably  believed  to be in, or, in the case of
     service for any other corporation or any partnership, joint venture, trust,
     employee  benefit  plan or  other  enterprise,  not  opposed  to,  the best
     interests of the  corporation,  except that no  indemnification  under this
     paragraph shall be made in respect of (1) a threatened action, or a pending
     action which is settled or otherwise disposed of, or (2) 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 on which the
     action was brought,  or, if no action was  brought,  any court of competent
     jurisdiction,  determines  upon  application  that,  in  view  of  all  the
     circumstances of the case, the person is fairly and reasonably  entitled to
     indemnity  for such  portion of the  settlement  amount and expenses as the
     court deems proper.

                                       iv
<PAGE>

(d)  For the  purpose of this  section,  a  corporation  shall be deemed to have
     requested a person to serve an employee  benefit plan where the performance
     by such person of his duties to the corporation  also imposes duties on, or
     otherwise  involves services by, such person to the plan or participants or
     beneficiaries  of the plan;  excise taxes assessed on a person with respect
     to an employee  benefit plan pursuant to applicable law shall be considered
     fines;  and action taken or omitted by a person with respect to an employee
     benefit  plan in the  performance  of such  person's  duties  for a purpose
     reasonably   believed  by  such  person  to  be  in  the  interest  of  the
     participants  and  beneficiaries  of the plan  shall be  deemed to be for a
     purpose which is not opposed to the best interests of the corporation.

     723 PAYMENT OF INDEMNIFICATION OTHER THAN BY COURT AWARD.

(a)  A person  who has been  successful,  on the  merits  or  otherwise,  in the
     defense  of a civil or  criminal  action  or  proceeding  of the  character
     described in section 722 shall be entitled to indemnification as authorized
     in such section.

(b)  Except as provided in paragraph (a), any indemnification  under section 722
     or  otherwise  permitted by section  721,  unless  ordered by a court under
     section 724  (Indemnification of directors and officers by a court),  shall
     be made by the corporation, only if authorized in the specific case:

     (1)  By the board acting by a quorum  consisting  of directors  who are not
          parties to such action or proceeding  upon a finding that the director
          or officer has met the standard of conduct set forth in section 722 or
          established pursuant to section 721, as the case may be, or,

      (2)  If a quorum  under  subparagraph  (1) is not  obtainable  or, even if
          obtainable, a quorum of disinterested directors so directs;

          (A)  By the board upon the  opinion in  writing of  independent  legal
               counsel  that  indemnification  is  proper  in the  circumstances
               because  the  applicable  standard  of conduct  set forth in such
               sections has been met by such director or officer, or

          (B)  By the  shareholders  upon a finding that the director or officer
               has met the  applicable  standard  of  conduct  set forth in such
               sections.

(c)  Expenses incurred in defending a civil or criminal action or proceeding may
     be paid by the  corporation  in  advance of the final  disposition  of such
     action or proceeding upon receipt of an undertaking by or on behalf of such
     director or officer to repay such amount as, and to the extent, required by
     paragraph (a) of section 725.

                                       v
<PAGE>

     724 INDEMNIFICATION OF DIRECTORS AND OFFICERS BY A COURT.

(a)  Notwithstanding  the failure of a corporation  to provide  indemnification,
     and despite any contrary  resolution of the board or of the shareholders in
     the specific case under section 723 (Payment of indemnification  other than
     by court award),  indemnification shall be awarded by a court to the extent
     authorized  under  section  722  (Authorization   for   indemnification  of
     directors  and  officers)  and  paragraph  (a) of section 723.  Application
     therefore may be made, in every case, either:

     (1)  In the civil action or  proceeding in which the expenses were incurred
          or the amounts were paid, or

     (2)  To the  supreme  court in a  separate  proceeding,  in which  case the
          application   shall  set  forth  the   disposition   of  any  previous
          application  made to any court for the same or similar relief and also
          reasonable  cause for the failure to make  application for such relief
          in the action or  proceeding  in which the expenses  were  incurred or
          other amounts were paid.

(b)  The application shall be made in such manner and form as may be required by
     the applicable rules of court or, in the absence thereof, by direction of a
     court to which it is made.  Such  application  shall be upon  notice to the
     corporation.  The court may also direct that notice by given at the expense
     of the  corporation  to the  shareholder  and such  other  person as it may
     designate in such manner as it may require.

(c)  Where  indemnification  is sought by judicial action, the court may allow a
     person such reasonable  expenses,  including  attorneys'  fees,  during the
     pendency of the litigation as are necessary in connection  with his defense
     therein, if the court shall find that the defendant has by his pleadings or
     during the course of the litigation raised genuine issues of fact or law.

     725 OTHER PROVISIONS AFFECTING INDEMNIFICATION OF DIRECTORS AND OFFICERS.

(a)  All expenses incurred in defending a civil or criminal action or proceeding
     which are advanced by the  corporation  under  paragraph (c) of section 723
     (Payment  of  indemnification  other  than by court  award) or allowed by a
     court under paragraph (c) of section 724  (Indemnification of directors and
     officers  by a court)  shall be repaid in case the  person  receiving  such
     advancement or allowance is ultimately found, under the procedure set forth
     in  this  article,   not  to  be  entitled  to  indemnification  or,  where
     indemnification  is granted,  to the extent the expenses so advanced by the
     corporation or allowed by the court exceed the  indemnification to which he
     is entitled.

                                       vi
<PAGE>

(b)  No  indemnification,  advancement  or  allowance  shall be made  under this
     article in any circumstance where it appears:

     (1)  That the  indemnification  would be  inconsistent  with the law of the
          jurisdiction of incorporation of a foreign corporation which prohibits
          or otherwise limits such indemnification;

     (2)  That the indemnification would be inconsistent with a provision of the
          certificate of  incorporation,  a by-law, a resolution of the board or
          of the shareholders, an agreement or other proper corporate action, in
          effect  at the time of the  accrual  of the  alleged  cause of  action
          asserted in the  threatened  or pending  action or proceeding in which
          the expenses were incurred or other amounts were paid, which prohibits
          or otherwise limits indemnification; or

     (3)  If  there  has  been a  settlement  approved  by the  court,  that the
          indemnification  would be inconsistent with any condition with respect
          to  indemnification  expressly  imposed by the court in approving  the
          settlement.

(c)  If any  expenses  or  other  amounts  are  paid by way of  indemnification,
     otherwise  than  by  court  order  or  action  by  the  shareholders,   the
     corporation  shall,  not later than the next annual meeting of shareholders
     unless  such  meeting is held  within  three  months  from the date of such
     payment,  and in any event,  within  fifteen  months  from the date of such
     payment,  mail to its  shareholders  of record at the time entitled to vote
     for the election of directors a statement  specifying the persons paid, the
     amounts paid,  and the nature and status at the time of such payment of the
     litigation or threatened litigation.

(d)  If any action with respect to  indemnification of directors and officers is
     taken by way of amendment of the by-laws,  resolution of  directors,  or by
     agreement,  then the  corporation  shall,  not later  than the next  annual
     meeting of  shareholders,  unless such  meeting is held within three months
     from the date of such action, and, in any event, within fifteen months from
     the date of such  action,  mail to its  shareholders  of record at the time
     entitled to vote for the election of directors a statement  specifying  the
     action taken.

(e)  Any  notification  required to be made pursuant to the foregoing  paragraph
     (c) or  (d) of  this  section  by any  domestic  mutual  insurer  shall  be
     satisfied by compliance  with the  corresponding  provisions of section one
     thousand two hundred sixteen of the insurance law.

(f)  The provisions of this article relating to indemnification of directors and
     officers and insurance  therefor shall apply to domestic  corporations  and
     for  corporations  doing  business  in this  state,  except as  provided in
     section 1320 (Exemption from certain provisions).

                                       vii
<PAGE>

     726 INSURANCE FOR INDEMNIFICATION OF DIRECTORS AND OFFICERS.

a)   Subject to paragraph  (b), a  corporation  shall have power to purchase and
     maintain insurance:

     (1)  To indemnify the corporation  for any obligation  which it incurs as a
          result of the  indemnification  of directors  and  officers  under the
          provisions of this article, and

     (2)  To indemnify  directors and officers in instances in which they may be
          indemnified by the  corporation  under the provisions of this article,
          and

     (3)  To indemnify directors and officers in instances in which they may not
          otherwise be  indemnified by the  corporation  under the provisions of
          this  article  provided  the  contract  of  insurance   covering  such
          directors  and  officers  provides,  in a  manner  acceptable  to  the
          superintendent   of  insurance,   for  a  retention   amount  and  for
          coinsurance.

(b)  No insurance  under  paragraph (a) may provide for any payment,  other than
     cost of defense, to or on behalf of any director or officer:

     (1)  if a judgment  or other  final  adjudication  adverse  to the  insured
          director or officer establishes that his acts of active and deliberate
          dishonesty  were  material to the cause of action so  adjudicated,  or
          that  he  personally  gained  in  fact a  financial  profit  or  other
          advantage to which he was not legally entitled, or

     (2)  in relation to any risk the insurance of which is prohibited under the
          insurance law of this state.

(c)  Insurance under any or all  subparagraphs  of paragraph (a) may be included
     in a single contract or supplement  thereto.  Retrospective rated contracts
     are prohibited.

(d)  The  corporation  shall,  within the time and to the  persons  provided  in
     paragraph (c) of section 725 (Other provisions affecting indemnification of
     directors or officers), mail a statement in respect of any insurance it has
     purchased or renewed under this section,  specifying the insurance carrier,
     date of the contract,  cost of the insurance,  corporate positions insured,
     and a statement explaining all sums, not previously reported in a statement
     to shareholders, paid under any indemnification insurance contract.

(e)  This  section  is the  public  policy of this  state to spread  the risk of
     corporate  management,  notwithstanding any other general or special law of
     this state or of any other jurisdiction including the federal government.


                                      viii
<PAGE>


    Item 16. EXHIBITS

                                    Exhibits

     Exhibit List

     3.07 Fifth Amendment to Certificate of Incorporation**

     4.09 Specimen Certificate, Series "D" Preferred Stock*

     4.10 Form of  Securities  Purchase  Agreement  between  the Company and the
          Purchaser*

     4.11 Form of Registration  Rights  Agreement by and among the Company,  the
          Selling Agent and the Purchaser*

     4.12 Form of Common Stock Purchase Warrant Certificate*

     4.13 Form of Certificate  of  Designation  relating to Series "D" Preferred
          Shares*

     5.06 Opinion and Consent of Joel Pensley, Esq.

    23.12 Consent of Thomas P. Monahan, CPA

    23.13 Consent of Richard A. Eisner & Company, LLP

    23.14 Consent of Joel Pensley, Esq. relating to Post Effective Amendment No.
          1 (contained in Exhibit 5.06)

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

     *    Previously submitted as exhibits to Form 8-K filed on April 30, 1998

     **   Previously  submitted as an exhibit to Registration  Statement on Form
          SB-2 filed on May 20, 1998

                                      ix
<PAGE>


     Item 17. Undertakings

     Insofar as indemnification for liabilities arising under the Securities Act
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.

     The undersigned hereby undertakes:

(a)  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 this  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 this Registration Statement; and

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

     Provided,  however,  that paragraphs (1)(i) and (1)(ii) do not apply if the
information  required  to be  included in a post  effective  amendment  by these
paragraphs  is contained in periodic  reports  filed by the Company  pursuant to
Section  13 or  Section  15(d)  of the  Securities  Exchange  Act of  1934  (the
"Exchange  Act")  that  are  incorporated  by  reference  in  this  Registration
Statement.

(b)  that,  for the purposes of determining  any liability  under said Act, 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;

(c)  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;

(d)  That, for purposes of determining  any liability under the Act, each filing
     of the Company's  annual  report  pursuant to Section 13(a) or 15(d) of the
     Securities  Exchange  Act of 1934,  as amended (the  "Exchange  Act") (and,
     where applicable, each filing of an employee benefit's plan's annual report
     pursuant to Section  15(d) of the  Exchange  Act) that is  incorporated  by
     reference  in  the  Registration  Statement  shall  be  deemed  to be a new
     registration  statement  relating to the securities offered herein, and the
     offering of such  securities at that time shall be deemed to be the initial
     bona fide offering thereof.

                                      x
<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 S-3 and has duly  caused  this post  effective
amendment  to the  registration  statement  to be  signed  on its  behalf by the
undersigned,  thereunto duly authorized,  in the City of Hudson and State of New
York on the 22 day of September, 1998.



                                    AMERICAN BIO MEDICA CORPORATION
                                       (Registrant)

                                    By: /s/Stan Cipkowski
                                        ------------------
                                        Stan Cipkowski,
                                        President and Principal
                                        Executive Officer


                                    By: /s/John F. Murray
                                        --------------------
                                        John F. Murray,
                                        Treasurer and Principal
                                        Financial Officer




     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
registration  statement  has been signed below by the  following  persons in the
capacities and on the dates indicated:


/s/Stan Cipkowski
- ---------------------               Director                 September 22, 1998
Stan Cipkowski

/s/Edmund Jaskiewicz
- ---------------------
Edmund Jaskiewicz                   Director                 September 22, 1998

/s/Jay Bendis
- ---------------------
Jay Bendis                          Director                 September 22, 1998

/s/John F. Murray
- ---------------------
John F. Murray                      Director                 September 22, 1998


- ---------------------
Jasper R. Clay, Jr.                 Director


- ---------------------
Karen Russo                         Director


                                      xi


                                   Exhibit 5.6



                       Opinion and Consent of Joel Pensley



                                  Joel Pensley
                                 Attorney at Law
                          276 Fifth Avenue (Suite 715)
                            New York, New York 10001
                                  212-725-7110
                               Fax: 212-725-7527


                                        September 22, 1998

American Bio Medica Corporation
300 Fairview Avenue
Hudson, New York 12534


                     Re: Registration Statement on Form S-3

Gentlemen:

     I    refer to the  registration  statement  on Form S-3 (the  "Registration
          Statement") of American Bio Medica Corporation, a New York corporation
          (the  "Company"),  to  be  delivered  for  electronic  filing  to  the
          Securities  and  Exchange  Commission,  relating  to an  aggregate  of
          1,744,103 common shares,  $.01 par value each ("Common Shares") issued
          or issuable  upon  conversion  of  underlying  Series "D"  convertible
          preferred  shares  (the  "Series  D  Preferred  Shares")  (subject  to
          adjustment pursuant  to Rule 416 to the  Securities  Act of  1933,  as
          amended,  and pursuant to the  Certificate of Designation  relating to
          the  Series  "D"  Preferred  Shares)  and  to  107,355  Common  Shares
          underlying  the  exercise  of  common  share  purchase  warrants  (the
          "Warrants").

     In my capacity as counsel to the Company,  I have  examined  the  Company's
Certificate of  Incorporation  and By-laws,  as amended to date, and the minutes
and other corporate proceedings of the Company.

     With  respect  to  factual  matters,  I have  relied  upon  statements  and
certificates of officers of the Company. I have also reviewed such other matters
of  law  and  examined  and  relied  upon  such  other  documents,  records  and
certificates as we have deemed relevant hereto.  In all such examinations I have
assumed conformity with the original documents of all documents  submitted to us
as conformed or photostatic  copies, the authenticity of all documents submitted
to me as  originals  and the  genuineness  of all  signatures  on all  documents
submitted to me.

(i)  The  Company  has  been  duly   incorporated  and  is  a  validly  existing
     corporation in good standing under the laws of the State of New York.

(ii) The Common Shares issued or to be issued upon  conversion of the Series "D"
     Preferred  Shares or exercise of the Warrants  pursuant to the Registration
     Statement  have been duly  authorized  and,  when  issued,  will be validly
     issued, fully paid and nonassessable.

     I hereby  consent  to the  filing  of this  opinion  as an  exhibit  to the
Registration  Statement and to the reference made to me under the caption "Legal
Matters" in the prospectus incorporated in the Registration Statement.



                                   Very truly yours,

                                   /s/Joel Pensley
                                   ---------------
                                   Joel Pensley








                                  Exhibit 23.12



                       Consent of Thomas P. Monahan, CPA



                                     CONSENT

     I  consent  to the  reference  to me under  the  caption  "Experts"  in the
Registration Statement on Form S-3 and related Prospectus of American Bio Medica
Corporation  and to the  incorporation  by reference  therein of my report on my
audit of the  financial  statements  of American Bio Medica  Corporation,  as of
April 30, 1997 and for the year then ended included in its Annual Report for the
fiscal year ended April 30, 1998 on Form 10-KSB  filed with the  Securities  and
Exchange Commission. I also consent to the reference under the caption "Experts"
in the Prospectus.

Dated: September 22, 1998



                              /s/Thomas P. Monahan
                              --------------------
                              Thomas P. Monahan








                                  Exhibit 23.13



                   Consent of Richard A. Eisner & Company, LLP



                                     CONSENT


     We consent to the incorporation by reference in the Registration  Statement
on Form S-3 of American Bio Medica Corporation of our report dated June 14, 1998
(with respect to the second  paragraph of Note K(3), July 23, 1998) on our audit
of the financial statements of American Bio Medica Corporation,  as of April 30,
1998 and for the year then ended  included in its Annual  Report on Form 10-KSB.
We also consent to the reference of our firm under the caption  "Experts" in the
Prospectus.

New York, New York
September 21, 1998



                              /s/Richard A. Eisner & Company, LLP
                              -----------------------------------
                              Richard A. Eisner & Company, LLP





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