<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
                                   FORM 10-QSB

[x]  Quarterly report under Section 13 or 15(d) of the Securities Exchange Act
     of 1934. For the quarterly period ended January 31, 2000.


[ ]  Transition report under Section 13 or 15 (d) of the Securities Exchange
     Act of 1934.

     For the transition period from              to


                         Commission File Number: 0-28666


                         AMERICAN BIO MEDICA CORPORATION
        -----------------------------------------------------------------
        (Exact name of small business issuer as specified in its charter)


                New York                                14-1702188
       -------------------------------------------------------------------
       (State or other jurisdiction of                 (I.R.S. Employer
       incorporation or organization)                Identification No.)


                   122 Smith Road, Kinderhook, New York 12106
                   -------------------------------------------
                    (Address of principal executive offices)


                                  800-227-1243
                           ---------------------------
                           (Issuer's telephone number)




              ----------------------------------------------------
              (Former name, former address and former fiscal year,
                          if changed since last report)


      Check whether the issuer: (1) filed all reports required to be filed by
Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such
shorter period that the registrant was required to file such reports), and (2)
has been subject to such filing requirements for the past 90 days.

      Yes [X]    No [ ]

     State the number of shares outstanding of each of the issuer's classes of
common equity as of the latest practicable date:

     16,343,221 Common Shares as of March 7, 2000



     Transitional Small Business Disclosure Format: Yes [ ] No [X]


<PAGE>   2
                                     PART I
                             FINANCIAL INFORMATION

                        AMERICAN BIO MEDICA CORPORATION
                                 BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                         APRIL 30,        JANUARY 31,
                                                                            1999              2000
                                                                                          (UNAUDITED)
                                                                      ----------------  -----------------
<S>                                                                   <C>               <C>
                               ASSETS
Current assets
  Cash and cash equivalents                                           $       131,000   $         46,000
  Investments - available for sale                                            719,000            350,000
  Accounts and notes receivable - net of allowance                          1,021,000          1,796,000
  Inventory                                                                 1,834,000          1,776,000
  Prepaid expenses                                                             97,000            466,000
                                                                      ----------------  -----------------
  Total current assets                                                      3,802,000          4,434,000

Property, plant and equipment, net                                            351,000            411,000
Due from officer                                                              280,000            338,000
Other assets                                                                    2,000              6,000

                                                                      ----------------  -----------------
Total assets                                                          $     4,435,000   $      5,189,000
                                                                      ================  =================

                LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable and accrued expenses                               $     1,149,000   $      2,119,000
  Payable to preferred stockholder                                            130,000             22,000
  Note payable - stockholder                                                  125,000            137,000
  Current portion of capital lease obligations                                 11,000             13,000
                                                                      ----------------  -----------------
Total current liabilities                                                   1,415,000          2,291,000

  Long term portion of capital lease obligations                               47,000             36,000
                                                                      ----------------  -----------------
Total liabilities                                                           1,462,000          2,327,000
                                                                      ----------------  -----------------

Stockholders' equity:
 Preferred stock; par value $.01 per share; 5,000,000 shares
  authorized; 1,536 and 276 shares Series D, 8% cumulative,
  convertible, issued and outstanding (face values $1,536,000
  and $276,000 at April 30,1999  and January 31, 2000)                              0                  0

 Common stock; par value $.01 per share; 30,000,000 shares authorized;
  14,875,190 and 16,343,221 shares issued
  and outstanding at April 30, 1999 and January 31, 2000                      149,000            163,000
Additional paid-in capital                                                 12,326,000         12,733,000
Subscription receivable                                                        (9,000)            (9,000)
Unearned portion of compensatory options                                      (13,000)           (13,000)
Unrealized loss on investments available for sale                             (56,000)           (60,000)
Accumulated deficit                                                        (9,424,000)        (9,952,000)
                                                                      ----------------  -----------------
  Total stockholders' equity                                                2,973,000          2,862,000
                                                                      ----------------  -----------------

                                                                      ----------------  -----------------
Total liabilities and stockholders' equity                            $     4,435,000   $      5,189,000
                                                                      ================  =================
</TABLE>

                 See accompanying notes to financial statements



<PAGE>   3
                        AMERICAN BIO MEDICA CORPORATION
                            STATEMENTS OF OPERATIONS
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                  FOR THE NINE MONTHS ENDED
                                                                         JANUARY 31,
                                                          ------------------------------------------
                                                                 1999                   2000
                                                          -------------------    -------------------
<S>                                                       <C>                    <C>
Net sales                                                 $        4,644,000     $        6,046,000

Cost of goods sold                                                 2,225,000              2,948,000
                                                          -------------------    -------------------

Gross profit                                                       2,419,000              3,098,000
                                                          -------------------    -------------------

Operating expenses:
    Selling, general and administrative                            2,839,000              2,604,000
    Legal fees                                                       162,000                477,000
    Depreciation                                                      66,000                 27,000
    Research and development                                         266,000                500,000
    Write-off of bad debts                                                 0                 37,000
                                                          ------------------------------------------
                                                                   3,333,000              3,645,000
                                                          -------------------    -------------------

Operating loss                                                      (914,000)              (547,000)
                                                          -------------------    -------------------

Other income and (expense):
   Gain on sale of marketable securities                                   0                 10,000
   Gain on discontinued operations                                    31,000                 41,000
   Interest income                                                    47,000                 61,000
   Interest expense                                                        0               (19,000)
                                                          -------------------    -------------------
                                                                      78,000                 93,000
                                                          -------------------    -------------------

Net loss                                                  $         (836,000)    $         (454,000)

Adjustments:
Preferred stock beneficial conversion feature                       (123,000)              (123,000)
Preferred stock dividends                                           (521,000)               (76,000)
                                                          -------------------    -------------------
Net loss attributable to common shareholders              $       (1,480,000)    $         (653,000)
                                                          ===================    ===================

Basic and diluted net loss
   per common share                                       $            (0.10)    $            (0.04)

 Weighted average shares outstanding  -
    basic and diluted                                             14,454,883             15,091,417
                                                          ===================    ===================

           AMERICAN BIO MEDICA CORPORATION
           STATEMENT OF COMPREHENSIVE LOSS

Net loss                                                  $         (836,000)    $         (454,000)
Other comprehensive loss:
  Unrealized loss on investments                                           0                 (3,000)
                                                          -------------------    -------------------
  Comprehensive loss                                      $         (836,000)    $         (457,000)
                                                          ===================    ===================
</TABLE>

                 See accompanying notes to financial statements


<PAGE>   4
                         AMERICAN BIO MEDICA CORPORATION
                            STATEMENTS OF OPERATIONS
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                                                  FOR THE THREE MONTHS ENDED
                                                                         JANUARY 31,
                                                          ------------------------------------------
                                                                 1999                   2000
                                                          -------------------    -------------------
<S>                                                       <C>                    <C>
Net sales                                                 $        1,912,000     $        1,797,000

Cost of goods sold                                                 1,055,000                833,000
                                                          -------------------    -------------------

Gross profit                                                         857,000                964,000
                                                          -------------------    -------------------

Operating expenses:
    Selling, general and administrative                            1,140,000                837,000
    Legal fees                                                       109,000                287,000
    Depreciation                                                      22,000                  9,000
    Research and development                                         164,000                242,000
    Write-off of bad debts                                            45,000                      0
                                                          -------------------    -------------------
                                                                   1,480,000              1,375,000
                                                          -------------------    -------------------

Operating loss                                                      (623,000)              (411,000)
                                                          -------------------    -------------------

Other income and (expense):
   Loss on sale of marketable securities                                   0                (5,000)
   Gain on discontinued operations                                    25,000                  9,000
   Interest income                                                    30,000                 17,000
   Interest expense                                                        0                (7,000)
                                                          -------------------    -------------------
                                                                      55,000                 14,000
                                                          -------------------    -------------------

Net loss                                                  $         (568,000)    $         (397,000)

Adjustments:
Preferred stock beneficial conversion feature                              0                      0
Preferred stock dividends                                           (262,000)               (22,000)
                                                          -------------------    -------------------
Net loss attributable to common shareholders              $         (830,000)    $         (419,000)
                                                          ===================    ===================

Basic and diluted net loss
   per common share                                       $            (0.06)    $            (0.03)

 Weighted average shares outstanding  -
    basic and diluted                                             14,454,883             15,091,417
                                                          ===================    ===================

           AMERICAN BIO MEDICA CORPORATION
           STATEMENT OF COMPREHENSIVE LOSS

Net loss                                                  $         (568,000)    $         (397,000)
Other comprehensive loss:
  Unrealized gain on investments                                           0                 10,000
                                                          -------------------    -------------------
  Comprehensive loss                                      $         (568,000)    $         (387,000)
                                                          ===================    ===================
</TABLE>

                 See accompanying notes to financial statements


<PAGE>   5
                         AMERICAN BIO MEDICA CORPORATION
                            STATEMENTS OF CASH FLOWS
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                                                        FOR THE NINE MONTHS ENDED
                                                                               JANUARY 31,
                                                                   -----------------------------------
                                                                        1999               2000
                                                                   ----------------   ----------------
<S>                                                                <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
 Net loss                                                          $      (836,000)   $      (454,000)
  Adjustments to reconcile net loss
   to net cash used in operating activities:
     Depreciation                                                           66,000             76,000
     Compensatory stock and stock options                                  162,000
     Changes in:
       Accounts and notes receivable                                      (552,000)          (775,000)
       Inventory                                                          (448,000)             58,000
       Prepaid expenses and other current assets                          (200,000)           (31,000)
       Other assets                                                         (6,000)            (4,000)
       Accounts payable and accrued expenses                               326,000            984,000
                                                                   ----------------   ----------------
         Net cash used in operating activities                          (1,488,000)          (146,000)
                                                                   ----------------   ----------------

CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of property, plant and equipment                               (222,000)          (136,000)
  Purchase of investments                                                                     (73,000)
  Sale and maturity of investments                                                             451,000
  Gain on sale of investments                                                                 (12,000)
  Loans to officer                                                         (40,000)           (58,000)
                                                                   ----------------   ----------------
         Net cash (used in) provided by investing activities              (262,000)           172,000
                                                                   ----------------   ----------------

CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from exercise of warrants and options                           105,000
  Settlement of registration rights agreement                                                (100,000)
  Capital lease payments                                                                      (11,000)
                                                                   ----------------   ----------------
         Net cash provided by (used in) financing activities               105,000           (111,000)
                                                                   ----------------   ----------------

NET DECREASE IN CASH AND
    CASH EQUIVALENTS                                                    (1,645,000)           (85,000)

Cash and cash equivalents - beginning of period                          3,239,000            131,000
                                                                   ----------------   ----------------

CASH AND CASH EQUIVALENTS - END OF PERIOD                          $     1,594,000    $        46,000
                                                                   ================   ================

NONCASH ACTIVITIES:
   Stock dividends paid to holders of preferred stock                       48,000             76,000
   Dividend accrued not yet paid                                            45,000             22,000
</TABLE>

                 See accompanying notes to financial statements



<PAGE>   6

Notes to Financial Statements
                                January 31, 2000

Note A - Basis of Reporting

     The accompanying unaudited financial statements have been prepared in
accordance with generally accepted accounting principles for interim financial
information and with the instructions to Form 10-QSB. 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, such statements include all adjustments (consisting only of normal
recurring items) which are considered necessary for a fair presentation of the
financial position of American Bio Medica Corporation (the "Company") at January
31, 2000, and the results of its operations, and cash flows for the nine-month
period then ended. The results of operations for the nine-month period ended
January 31, 2000 are not necessarily indicative of the operating results for the
full year. It is suggested that these financial statements be read in
conjunction with the financial statements and related disclosures for the year
ended April 30, 1999 included in the Company's Form 10-KSB.

During the year ended April 30, 1999, the Company sustained a net loss of
$1,691,000 and had net cash outflows from operating activities of $2,008,000.
The Company is in the process of taking a number of steps to improve its
financial prospects including focusing its efforts on sales of existing
products, implementing certain cost reductions and production efficiencies and
taking other measures to enhance profit margins. As a result the Company was
able to reduce its net loss to $454,000 and its net cash outflows to $85,000 for
the nine-month period ended January 31, 2000.


Note B - Net Loss Per Share of Common Stock

     The Company adopted Statement of Financial Accounting Standards ("SFAS")
No. 128, Earnings Per Share," in the year ended April 30, 1998. Accordingly, the
presentation of per share information includes calculations of basic and
dilutive loss per share. The effect of potential common shares such as warrants,
options, and convertible preferred stock has not been included, as the effect
would be anti-dilutive.

When preferred stock is convertible to common stock at a conversion rate that is
the lower of a rate fixed at issuance or a fixed discount from the common stock
market price at the time of conversion, the discounted amount is an assured
incremental yield, the "beneficial conversion feature", to the preferred
shareholders and should be accounted for as an embedded dividend to preferred
shareholders. As such, the loss per common share was adjusted for this feature.

Note C - Litigation

In June 1995, the Company filed a lawsuit against Jackson Morris, the lawyer who
was in charge of drafting and advising it on the Share Exchange Agreement. Mr.
Morris, who had been recommended to the Company by Dr. Friedenberg, is alleged
by the Company to have breached his fiduciary duty to the Company by later
advising Dr. Friedenberg, individually, on how to rescind the Share Exchange
Agreement. Mr. Morris is also charged with negligence in drafting the Share
Exchange Agreement. The Company's lawsuit demands damages in the amount of
$1,000,000. Mr. Morris has counterclaimed as a party to the Share Exchange
Agreement and seeks common shares. Whatever claim Morris has came from the
Friedenberg claim. No trial date has been set. The Company is vigorously
contesting the Morris claim.

On January 26, 1999, the Company was granted a U.S. Patent for the design of the
Multiple Test Card. On April 7, 1999, the Company filed suit in the federal
court in Delaware against Phamatech, Inc. of California, Peninsula Drug Analysis
Co., Inc. and James T. Ramsey of Virginia, as well as Dipro Diagnostic Products,
Inc. and Dipro Diagnostic Products of North America claiming patent
infringement, trademark dilution, and unfair competition.

On the following day, Phamatech Inc. filed suit in the federal court in San
Diego, California asking for a declaration that the Company's patent is invalid.
It also claimed breach of contract damages for an alleged non-payment of
invoices by the Company. The competing claims have been consolidated for trial
in San Diego.


<PAGE>   7


In June 1999, an individual filed suit in New York claiming that two private
placement memoranda dated respectively September 15, 1992 and February 5, 1993,
obligated the Company to issue him 1,555,601 common shares of the Company. The
claim is that he is entitled to the common shares in consideration of brokering
the acquisitions subject to the Share Exchange Agreement with Dr. Friedenburg.
In addition, the individual is claiming a finder's fee of five percent of the
funds raised by the September 1992 private placement. He alleges that a sum of
one million dollars was raised. Finally, he claims that he is entitled to a
consulting fee of $24,000. Management denies the claims and intends to
vigorously contest the suit.


Note D - Registration Penalty

         On May 28, 1999, the Company entered into a definitive Agreement with
CC Investments, LDC, holders of the Company's Series D preferred shares dated
April 30, 1999 (the "1999 Agreement") to settle all claims against the Company,
including the late registration penalty and certain other claims under the
Securities Purchase Agreement dated April 24, 1998. Pursuant to the 1999
Agreement, the Company gave as consideration $225,000 on June 1, 1999 ($100,000
in cash and a one-year promissory note in the principal amount of $125,000
accruing interest at the rate of 14% annually).


Note E - Discontinued Operation

         On September 1, 1999 the Company sold its book sales business including
all inventories and accounts receivable to a third party in exchange for a
$250,000 five year secured promissory note. As a result, for comparative
purposes, the company has re-stated its prior year statements of operations to
reflect the book business as a discontinued operation.








<PAGE>   8
 Item 2. Management's Discussion and Analysis or Plan of Operation

           MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                            AND RESULTS OF OPERATIONS
               for the nine months ended January 31, 2000 and 1999


     The following discussion of the Company's financial condition and results
of operations should be read in conjunction with the Financial Statements and
Notes thereto appearing elsewhere in this document.

              The Private Securities Litigation Reform Act of 1995 provides a
safe harbor for forward-looking statements. In order to comply with the terms of
the safe harbor, the Company notes that except for the description of historical
facts contained herein, the Registration Statement 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 Securities and
Exchange Commission and elsewhere. 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: (a) the
Company's fluctuations in sales and operating results, risks associated with
international operations and regulatory, competitive and contractual risks and
product development; (b) the ability to achieve strategic initiatives, including
but not limited to the ability to achieve sales growth across the business
segments through a combination of enhanced sales force, new products, and
customer service; and (c) acquisitions.










<PAGE>   9
     Results of operations for the nine months ended January 31, 2000 as
compared to the nine months ended January 31, 1999.
--------------------------------------------------------------------------------

         During the nine months ended January 31, 2000, the Company continued
its extensive program to market and distribute its primary product, the Rapid
Drug Screen(TM). As a result, revenues from the sale of test kits were
$6,046,000 for the nine months ended January 31, 2000 as compared to $4,644,000
for the nine months ended January 31, 1999, representing an increase of
$1,402,000 or 30.2% over the preceding year. Cost of goods sold for the nine
months ended January 31, 2000 was $2,948,000 or 48.8% of drug test revenues as
compared to $2,225,000 or 47.9% for the nine months ended January 31, 1999. The
Company has undertaken an extensive cost reduction program aimed specifically at
its in-place production process and expects further savings in the coming year.
It is expected that with further increases to its in-house manufacturing of drug
test strips, that significant savings will continue to be achieved.

         As a result of the continuing growth in the drug test market and the
need to focus its efforts in this market, the Company sold its book sales
operation in September 1999 in exchange for a five-year secured note receivable
in the amount of $250,000. Consequently, the Company has reclassified all book
sales revenues and operating costs to gain or loss on discontinued operations.

         Selling, general and administrative costs for the nine months ended
January 31, 2000 were $2,604,000, a decrease of 8.3% over expenses of $2,839,000
for the nine months ended January 31, 1999. As a percent of sales, this cost
decreased 18.0% during the comparable nine-month periods and is expected to
continue to decrease. The following table reflects the major categories of this
cost:

                                          NINE MONTHS ENDED    NINE MONTHS ENDED
                                          JANUARY 31, 1999      JANUARY 31, 2000
                                                    % Sales              % Sales

Sales salaries & commissions               513,000   11.0%       763,000  12.6%
Other selling expenses                     442,000    9.5%       467,000   7.7%
Marketing & promotion                      843,000   18.2%       189,000   3.1%
Investor relations costs                   122,000    2.6%       146,000   2.4%
Office salaries                            271,000    5.8%       225,000   3.7%
Payroll taxes & insurance                  109,000    2.3%       106,000   1.8%
Telephone                                   47,000    1.0%       108,000   1.8%
Insurance                                   40,000    0.9%        32,000   0.5%
Other administrative costs                 452,000    9.7%       568,000   9.4%

                                       -----------           -----------
Total Selling, General & Admin costs     2,839,000   61.1%     2,604,000  43.1%
                                       ===========           ===========

         As a result of relocating its marketing department to New York,
marketing and promotion costs (included in selling, general and administrative
costs) declined $654,000 or 15.1% of sales for the nine months ended January 31,
2000 compared to the nine months ended January 31, 1999.

         Legal fees relating principally to the Phamatech suit, for the nine
months ended January 31, 2000 were $477,000 or 7.9% of sales, an increase of
$315,000 over fees of $162,000 or 3.5% of sales for the nine months ended
January 31, 1999.

         Depreciation and amortization ($48,000 in Cost of goods sold and
$28,000 in Selling, general and administrative expense) was $76,000 and $66,000
for the nine months ended January 31, 2000 and 1999, respectively.

         Research and development expense amounted to $500,000 for the nine
months ended January 31, 2000 as compared to $266,000 for the nine months ended
January 31, 1999. This increase in research and development represents a
continuation of managements' efforts to develop improved methods to reduce the
cost of manufacturing its drug test kits.



<PAGE>   10


         Net loss from operations decreased to $(454,000) for the nine months
ended January 31, 2000 as compared to $(836,000) for the nine months ended
January 31, 1999, due primarily to increased sales revenues.

















<PAGE>   11
     Results of operations for the three months ended January 31, 2000 as
compared to the three months ended January 31, 1999.
--------------------------------------------------------------------------------

         For the three months ended January 31, 2000, sales of drug test kits
declined, principally as a result of increased competition from its former
supplier, Phamatech Inc. The company has filed a suit in federal court claiming
patent infringement, trademark dilution, and unfair competition against
Phamatech Inc. Revenues from the sale of the test kits were $1,797,000 for the
three months ended January 31, 2000 as compared to $1,912,000 for the three
months ended January 31, 1999, representing an decrease of $115,000 or 6.4% over
the preceding year. Cost of goods sold for the three months ended January 31,
2000 was $833,000 or 46.4% of drug test revenues as compared to $1,055,000 or
55.2% for the three months ended January 31, 1999. The Company has undertaken an
extensive cost reduction program aimed specifically at its in-place production
process and expects further savings in the coming year. It is expected that with
continued increases in its in-house manufacturing process, that further
significant savings can be achieved.

         As a result of the continuing growth in the drug test market and the
need to focus its efforts in this market, the Company sold its book sale
operation in September 1999 in exchange for a five-year secured note receivable
in the amount of $250,000.

         While Net sales decreased 6.4% for the three months ended January 31,
2000 over the three months ended January 31, 1999, selling, general and
administrative costs including bad debt write-offs decreased 29.4% to $837,000
over expenses of $1,185,000 for the three months ended January 31, 1999. As a
percent of sales, this cost decreased 13.4% during the comparable three-month
period and is expected to continue to decrease. The following table reflects the
major categories of this cost:

                                         THREE MONTHS ENDED   THREE MONTHS ENDED
                                          JANUARY 31, 1999     JANUARY 31, 2000
                                                    % Sales              % Sales

Sales salaries & commissions               203,000   10.6%       241,000   13.4%
Other selling expenses                     264,000   13.8%       152,000   8.5%
Marketing & promotion                      484,000   25.3%        35,000   1.9%
Investor relations costs                    43,000    2.2%        25,000   1.4%
Office salaries                             93,000    4.9%        78,000   4.3%
Payroll taxes & insurance                   41,000    2.1%        27,000   1.5%
Telephone                                   13,000    0.7%        44,000   2.4%
Insurance                                   18,000    0.9%         7,000   0.4%
Other administrative costs                  26,000    1.4%       228,000  12.7%

                                       -----------             ---------
Total Selling, General & Admin costs     1,185,000   61.9%       837,000  46.5%
                                       ===========             =========

         Marketing and promotion costs (included in selling, general and
administrative costs) amounted to $35,000 or 1.9% of sales for the three months
ended January 31, 2000 as compared to $484,000 or 25.3% of sales for the three
months ended January 31, 1999.

         Depreciation and amortization was $22,000 and $9,000 for the three
months ended January 31, 2000 and 1999, respectively.

         Research and development expense amounted to $242,000 for the three
months ended January 31, 2000 as compared to $164,000 for the three months ended
January 31, 1999.

         Net loss from operations decreased to $(397,000) for the three months
ended January 31, 2000 as compared to net loss of $(568,000) for the three
months ended January 31, 1999, due primarily to a decrease in Cost of goods sold
and a decrease in operating expenses. The Company expects to continue to improve
its gross margins and decrease its overheads in future.



<PAGE>   12
     Liquidity and capital resources as of the nine months ended January 31,
2000.
--------------------------------------------------------------------------------

         The Company's cash and cash equivalents combined with short-term
investments amounted to $396,000 at January 31, 2000 representing a decrease of
$454,000 or 53.4% from $850,000 as of the year ended April 30, 1999. Working
capital decreased $244,000 or 10.2% to $2,143,000 as of January 31, 2000, from
$2,387,000 at April 30, 1999.

         The decrease in working capital resulted primarily from increases in
accounts receivable, prepaid expenses and plant and equipment; expenditures
necessary to sustain its increased business growth.

         The Company has entered into a one-year lease agreement with option to
purchase a 26,000 square foot fully constructed building in Kinderhook, N.Y. for
$1.3 million subject to the removal of certain existing zoning restrictions.
This move will permit the consolidation of its marketing effort and provide
space necessary for continued growth. The Company expects to substantially
finance the purchase with a 30-year fixed rate mortgage loan.

         As a result of strong nine-month sales of the Rapid Drug Screen,
accounts and notes receivable increased $775,000 or 75.9% to $1,796,000 as of
January 31, 2000 as compared to $1,021,000 as of April 30, 1999.


         Inventories decreased $58,000 or 3.2% to $1,776,000 for the nine months
ended January 31, 2000.

                  Prepaid expenses primarily for building rents, future trade
shows and consulting fees increased $369,000 to $466,000 for the nine months
ended January 31, 2000.

         Accounts payable and accrued expenses increased $970,000 for the nine
months ended January 31, 2000 due primarily to increases in business volume and
legal fees.

         The Company's primary short-term needs are to increase its
manufacturing capabilities, decrease current inventory levels and continue to
support its research and development programs. The Company currently plans to
expend approximately $100,000 for the expansion and development of its
manufacturing facilities in addition to its marketing and general administrative
programs.

         The Company expects its capital requirements to increase over the next
several years as it continues its research and development efforts and improves
its manufacturing capabilities and facilities. The Company's future liquidity
and capital funding requirements will depend on numerous factors, including the
extent to which the Company's products under development are successfully
developed and gain market acceptance, the timing of regulatory actions regarding
the Company's potential products, the costs and timing of expansion of sales,
marketing and manufacturing activities, facilities expansion needs, procurement
and enforcement of patents important to the Company's business, results of
clinical investigations and competition.

         The Company has obtained a $500,000 line of credit to cover its
short-term capital requirements with a local lending institution. The Company
believes that its available cash and cash from operations will be sufficient to
satisfy its funding needs to September 30, 2000. Thereafter, if cash generated
from operations is insufficient to satisfy the Company's working capital and
capital expenditure requirements, the Company may be required to sell additional
equity or debt securities or obtain additional credit facilities. There can be
no assurance that such financing, if required, will be available on satisfactory
terms, if at all.



<PAGE>   13
                                     PART II
                                OTHER INFORMATION

Item 1. Legal Proceedings:

See Note C - Litigation in the Notes to Financial Statements included in this
Form 10-QSB for a description of pending legal proceedings in which the Company
is a party.

Item 2. Changes in Securities

     None.

Item 3. Defaults upon Senior Securities

     None.

Item 4. Submission of Matters to a Vote of Security-Holders

      The following matters were voted upon at the Annual Meeting of
Shareholders held at the Company's Headquarters in Kinderhook, N.Y. on September
22, 1999:

1. The election of the following directors, who will serve until their
successors are elected and qualified, or their earlier death or resignation:

       Director               For                    Withheld
       --------               ---                    --------

  Stan Cipkowski           7,970,723                  725,289
  Edmund Jaskiewicz        7,970,723                  725,289
  Jay Bendis               7,970,723                  725,289
  John F. Murray           7,970,723                  725,289
  Karen Russo              7,970,723                  725,289
  Gerald Moore             7,970,723                  725,289

2. To approve the issuance of common shares in connection with the conversion
and exercise of outstanding preferred stock and warrants issued in a private
financing transaction.
                              For                    Withheld           Abstain
                              ---                    --------           -------
                           8,186,748                  476,369           38,595

3. To approve the adoption by the Board of Directors of the Fiscal 2000 Stock
Option Plan

                              For                    Withheld           Abstain
                              ---                    --------           -------
                           7,416,939                1,245,461           38,812


<PAGE>   14
                                   SIGNATURES



     In accordance with the requirements of the Securities Exchange Act of 1934,
the registrant has caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.




                              AMERICAN BIO MEDICA CORPORATION
                                        (Registrant)

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


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







Dated: March 16, 2000



<PAGE>   15
                    EXHIBIT INDEX
                    -------------


27                  Financial Data Schedule