UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


                               September 30, 2004
                Date of Report (Date of earliest event reported)

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                           ACURA PHARMACEUTICALS, INC.
               (Exact Name of Registrant as Specified in Charter)

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

      STATE OF NEW YORK                 1-10113                 11-0853640
(State of Other Jurisdiction   (Commission File Number)      (I.R.S. Employer
      of Incorporation)                                   Identification Number)

                          616 N. NORTH COURT, SUITE 120
                            PALATINE, ILLINOIS 60067
               (Address of principal executive offices) (Zip Code)

                                 (847) 705-7709
               (Registrant's telephone number, including are code)

                              HALSEY DRUG CO., INC.
          (Former Name or Former Address if Changed Since Last Report)


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[_]   Written  communications  pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

[_]   Soliciting  material pursuant to Rule 14a-12 under the Exchange Act (17CFR
      240.14a-12)

[_]   Pre-commencement  communications  pursuant  to  Rule  14d-2(b)  under  the
      Exchange Act (17CFR240.14d-2(b))

[_]   Pre-commencement  communications  pursuant  to  Rule  13e-4(c)  under  the
      Exchange Act (17CFR 240.13e-4(c))



ITEM 3.02 UNREGISTERED SALES OF EQUITY SECURITIES.

      On September 30, 2004, Acura Pharmaceuticals,  Inc. (the "Company") issued
261,309  shares of its  Common  Stock,  $.01 par value  per share  (the  "Common
Stock") to the holders (the  "Noteholders") of a certain Secured Promissory Note
(the  "Note") in the  principal  amount of $5 million  dated as of December  20,
2002. The issuance of Common Stock  represents an in-kind payment of accrued and
unpaid interest on the Note for the quarter ended September 30, 2004.

      The Company  issued the Common Stock in reliance upon the  exemption  from
registration  provided by Section 4(2) of the Securities Act of 1933, as amended
and/or Regulation D promulgated under the Securities Act of 1933. At the time of
acquisition of the Note, the Noteholders represented to the Company that each of
such  Noteholders  was an  accredited  investor as defined in Rule 501(a) of the
Securities  Act of 1933 and that the  Note and any  securities  issued  pursuant
thereto were being acquired for investment purposes.


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                                   SIGNATURES

      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 thereunto duly authorized.


                             ACURA PHARMACEUTICALS, INC.


                             By: /s/ Peter A. Clemens
                                 ---------------------------------------
                                 Peter A. Clemens
                                 Senior Vice President & Chief Financial Officer


Date:    September 30, 2004