Exhibit 1 --------- Joint Filing Agreement The undersigned hereby agree that the statement on Schedule 13D with respect to the common stock of Halsey Drug Co., Inc. is, and any amendment thereto signed by each of the undersigned shall be, filed on...

                                                                      Exhibit 1
                                                                      ---------

                             Joint Filing Agreement

         The undersigned hereby agree that the statement on Schedule 13D with
respect to the common stock of Xxxxxx Drug Co., Inc. is, and any amendment
thereto signed by each of the undersigned shall be, filed on behalf of each
undersigned pursuant to and in accordance with the provisions of 13d-1(k) under
the Securities Exchange Act of 1934, as amended.


Dated: August 10, 2001                  /s/ Xxxxx X. Xxxxxxxx
                                        ------------------------------
                                        Xxxxx X. Xxxxxxxx


Dated: August 10, 2001                  ORACLE STRATEGIC CAPIAL, L.L.C.

                                        By: /s/ Xxxxx X. Xxxxxxxx
                                            ------------------------------
                                            Name:  Xxxxx X. Xxxxxxxx
                                            Title: Managing Member


Dated: August 10, 2001                  ORACLE STRATEGIC PARTNERS, L.P.

                                        By: ORACLE STRATEGIC CAPIAL,
                                            L.L.C., General Partner

                                        By: /s/ Xxxxx X. Xxxxxxxx
                                            ------------------------------
                                            Name:  Xxxxx X. Xxxxxxxx
                                            Title: Managing Member