Feinberg Larry N Watch

from SC 13D/A 2 pages Standstill Agreement

from SC 13D/A 2 pages Joint Filing Agreement

from SC 13D/A 54 pages Securities Purchase Agreement

from SC 13D 2 pages Joint Filing Agreement

from SC 13D 1 page Exhibit 1 Joint Filing Agreement

from SC 13D ~5 pages List of Company Common Stock Transactions

from SC 13D/A 1 page Underwriting agreement

from SC 13D/A ~5 pages List of Transactions

from SC 13D/A 1 page Description of Transactions

from SC 13D 1 page Exhibit 1 List of Transactions in the Company Common Stock Amount Amount Person of of Approximate Effecting Shares Shares Price Per Date Transaction Security Bought Sold Share 6/28/02 Sam Common Stock 25,000 1.5188 Investments

from SC 13D 1 page <page> Exhibit 1 Schedule 13d Joint Filing Agreement the Undersigned and Each Other Person Executing This Joint Filing Agreement (This "Agreement") Agree That Each of the Undersigned Is Responsible for the Timely Filing of This Statement and Any Amendments Thereto, and for the Completeness and Accuracy of the Information Concerning Such Person Contained Herein or Therein; but None of the Undersigned Is Responsible for the Completeness or Accuracy of the Information Statement Concerning Any Other Persons Making the Filing, Unless Such Person Knows or Has Reason to Believe That Such Information Is Inaccurate. in Witness Whereof, the Undersigned Have Either Signed This Agreement or Caused This Agreement to Be Signed by Their Respective Officers Thereunto Duly Authorized as of the Date Set Forth Below. Date: September 24, 2002 /S/ Larry N. Feinberg Larry N. Feinberg Oracle Investment Management, Inc. By: /S/ Larry N. Feinberg Name: Larry N. Feinberg Title: President Oracle Partners, L.P. By: Oracle Associates, LLC, Its General Partner By: /S/ Larry N. Feinberg Name: Larry N. Feinberg Title: Managing Member Oracle Associates, LLC By: /S/ Larry N. Feinberg Name: Larry N. Feinberg Title: Managing Member

from SC 13D/A 1 page Description of Transactions

from SC 13D/A 1 page Description of Transactions

from SC 13G 1 page <page> Exhibit 1 Joint Acquisition Statement Pursuant to Rule 13d-1(k) the Undersigned Acknowledge and Agree That the Foregoing Statement on Schedule 13g Is Filed on Behalf of Each of the Undersigned and That All Subsequent Amendments to This Statement on Schedule 13g Shall Be Filed on Behalf of Each of the Undersigned Without the Necessity of Filing Additional Joint Acquisition Statements. the Undersigned Acknowledge That Each Shall Be Responsible for the Timely Filing of Such Amendments, and for the Completeness and Accuracy of the Information Concerning Him or It Contained Therein, but Shall Not Be Responsible for the Completeness and Accuracy of the Information Concerning the Others, Except to the Extent That He or It Knows or Has Reason to Believe That Such Information Is Inaccurate. Executed on September 6, 2001, as of March 8, 2001 /S/ Larry N. Feinberg Larry N. Feinberg, Individually and as Senior Managing Member of Oracle Associates, LLC, on Behalf of Itself and as the General Partner of Oracle Partners, L.P. and Oracle Institutional Partners, L.P., as President of Oracle Investment Management, Inc., and as Trustee of the Feinberg Family Foundation

from SC 13D 1 page <page> 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 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/ Larry N. Feinberg Larry N. Feinberg Dated: August 10, 2001 Oracle Strategic Capial, L.L.C. By: /S/ Larry N. Feinberg Name: Larry N. Feinberg Title: Managing Member Dated: August 10, 2001 Oracle Strategic Partners, L.P. By: Oracle Strategic Capial, L.L.C., General Partner By: /S/ Larry N. Feinberg Name: Larry N. Feinberg Title: Managing Member