U.S. SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    FORM 8-K
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                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


         Date of Report (Date of earliest event reported): December 16, 2003




                                  AVITAR, INC.
             (Exact name of registrant as specified in its charter)



Delaware                                 1-15695                06-1174053
(State or Other Jurisdiction of   (Commission File Number)    (IRS Employer
 Incorporation or Organization)                              Identification No.)

                                   65 Dan Road
                           Canton, Massachusetts 02021
                    (Address of Principal Executive Offices)

                                 (781) 821-2440
                (Issuer's Telephone Number, Including Area Code)



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Item 2. Acquisition or Disposition of Assets

On  December  16,  2003,  Avitar,   Inc.   ("Avitar")   completed  the  sale  of
substantially  all the assets of its  subsidiary,  United  States  Drug  Testing
Laboratories,  Inc.  ("USDTL"),  for the  total  price of $1  million,  of which
$500,000 was paid upon  closing.  Payment of the balance of the  purchase  price
will be required when the buyer achieves certain revenue  targets.  The buyer of
the assets is Nichols Laboratories, Inc. ("Nichols"), which is controlled by the
former  President of USDTL.  Nichols also acquired the name of USDTL and entered
into a  Service  and  Consulting  Agreement  with  Avitar.  The  terms  of  this
transaction were based upon arms-length negotiations between Avitar and Nichols.

Item 5. Other Events and Regulation FD Disclosure.

On November 6, 2003,  Virotek LLC,  ("Virotek") filed a complaint against Avitar
in the Circuit  Court of the 19th  Judicial  Circuit in Lake  County,  Illinois.
Virotek,  which is a former  supplier to Avitar,  asserted in its complaint that
Avitar  repudiated  an alleged  agreement to purchase 2 million units of a rapid
test strip from Virotek and, as a result of such repudiation, Virotek is seeking
$4,007,782.00 in lost profits. Avitar believes that this lawsuit is baseless and
without legitimate grounds and accordingly intends to contest it vigorously.

Item 7. Financial Statements and Exhibits:

(b)  Pro forma financial information, if required, will be filed by December 31,
     2003 in regard to the transaction reported in Item 2.

(c)  Exhibits.

(2.1)Asset  Purchase  Agreement,  dated as of December 1, 2003,  among  Nichols,
     USDTL and Avitar.

(10.1) Service and Consulting  Agreement,  dated as of December 9, 2003, made by
     and between Nichols and Avitar.

(99.1) Press Release Issued on December 16, 2003




                                    Signature

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

                                                Avitar, Inc.
                                                (Registrant)
Date December 16, 2003                          /s/ Jay Leatherman, CFO
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                                                (Signature)