EXHIBIT 3.7

                               State of Delaware                          PAGE 1

                            Office of the Secretary

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



     I, EDWARD J. FREEL, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY 
CERTIFY THAT "SCHEIN PHARMACEUTICAL PA, INC." IS DULY INCORPORATED UNDER THE 
LAWS OF THE STATE OF DELAWARE AND IS IN GOOD STANDING AND HAS A LEGAL CORPORATE 
EXISTENCE NOT HAVING BEEN CANCELLED OR DISSOLVED SO FAR AS THE RECORDS OF THIS 
OFFICE SHOW AND IS DULY AUTHORIZED TO TRANSACT BUSINESS.

     THE FOLLOWING DOCUMENTS HAVE BEEN FILED:
        
     CERTIFICATE OF INCORPORATION, FILED THE TWENTY-EIGHTH DAY OF DECEMBER, 
A.D. 1993, AT 2:30 O'CLOCK P.M.

     AND I DO HEREBY FURTHER CERTIFY THAT THE AFORESIAD CERTIFICATES ARE THE
ONLY CERTIFICATES ON RECORD OF THE AFORESAID CORPORATION.

     AND I DO HEREBY FURTHER CERTIFY THAT THE FRANCHISE TAXES HAVE BEEN PAID TO 
DATE.

     AND I DO HEREBY FURTHER CERTIFY THAT THE ANNUAL REPORTS HAVE BEEN FILED TO 
DATE.

                 [SEAL OF THE STATE OF DELAWARE APPEARS HERE]




                     [SEAL OF SECRETARY'S  /s/ Edward J. Freel
                      OFFICE APPEARS HERE] ------------------------------------
                                           Edward J. Freel, Secretary of State

                                           AUTHENTICATION:   8810038
                                                                    
                                                     DATE:   12-12-97
       

 
                               State of Delaware

                       Office of the Secretary of State  PAGE 1

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     I, EDWARD J. FREEL, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY 
CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF 
INCORPORATION OF "SCHEIN PHARMACEUTICAL PA, INC.", FILED IN THIS OFFICE ON THE 
TWENTY-EIGHTH DAY OF DECEMBER, A.D. 1993, AT 2:30 O'CLOCK P.M.





                 [SEAL OF THE STATE OF DELAWARE APPEARS HERE]




                     [SEAL OF SECRETARY'S  /s/ Edward J. Freel
                      OFFICE APPEARS HERE] ------------------------------------
                                           Edward J. Freel, Secretary of State

                                           AUTHENTICATION:   8810038
                                                                    
                                                     DATE:   12-31-97

 
- ------------------------------
      STATE OF DELAWARE
      SECRETARY OF STATE
   DIVISION OF CORPORATIONS
   FILED 02:30 PM 12/28/1993
      753362047 - 2365667

                         CERTIFICATE OF INCORPORATION

                                      OF

                        SCHEIN PHARMACEUTICAL PA, INC.


        The undersigned incorporator, in order to form a corporation under the 
General Corporation Law of Delaware, certifies as follows:

        FIRST:    The name of the corporation is

                    Schein Pharmaceutical PA, Inc.

        SECOND:   The registered office of the corporation is to be located at 
32 Loockerman Square, Suite L-100, in the City of Dover, County of Kent, State 
of Delaware. The name of its registered agent at that address is The 
Prentice-Hall Corporation System, Inc.

        THIRD:    The purpose of the corporation is to engage in any lawful act 
or activity for which corporations may be organized under the General 
Corporation Law of Delaware.

        FOURTH:   The corporation shall have the authority to issue one thousand
(1,000) shares of common stock, with one cent ($0.01) par value.

        FIFTH:    The name and mailing address of the incorporator are as 
follows:

               Kenna M. Hudson
               Proskauer Rose Goetz & Mendelsohn
               1585 Broadway
               New York, NY 10036

        SIXTH:    Whenever a compromise or arrangement is proposed between this 
corporation and its creditors or any class of them and/or between this 
corporation and its stockholders or any class of them, any court of equitable 
jurisdiction within the State of Delaware may, on the application in a summary 
way of this corporation or of any creditor or stockholder thereof or on the 
application of any receiver or receivers appointed for this corporation under 
the provisions of (S)291 of Title 8 of the Delaware Code or on the application 
of trustees in dissolution or of any receiver or receivers appointed for this 
corporation under the provisions of (S)279 of Title 8 of the Delaware Code order
a meeting of the creditors or class of creditors, and/or of the 

 
stockholders or class of stockholders of this corporation, as the case may be, 
to be summoned in such manner as the said court directs. If a majority in number
representing three fourths in value of the creditors or class of creditors, 
and/or of the stockholders or class of stockholders of this corporation, as the 
case may be, agree to any compromise or arrangement and to any reorganization of
this corporation as a consequence of such compromise or arrangement, the said 
compromise or arrangement and the said reorganization shall, if sanctioned by 
the court to which the said application has been made, be binding on all the 
creditors or class of creditors, and/or on all the stockholders or class of 
stockholders, of this corporation, as the case may be, and also on this 
corporation.

        SEVENTH:  To the fullest extent that elimination or limitation of the 
liability of directors is permitted by law, as the same is now or may hereafter 
be in effect, no director of the corporation shall be liable to the corporation 
or its stockholders for monetary damages for breach of his or her fiduciary duty
as a director.

        EIGHTH:   The corporation shall, to the fullest extent permitted by law,
as the same is now or may hereafter be in effect, indemnify each person
(including the heirs, executors, administrators and other personal
representatives of such person) against expenses including attorneys' fees,
judgments, fines and amounts paid in settlement, actually and reasonably
incurred by such person in connection with any threatened, pending or completed
suit, action or proceeding (whether civil, criminal, administrative or
investigative in nature or otherwise) in which such person may be involved by
reason of the fact that he or she is or was a director or officer of the
corporation or is or was serving any other incorporated or unincorporated
enterprise in such capacity at the request of the corporation.

        NINTH:    Unless, and except to the extent that, the by-laws of the 
corporation shall so require, the election of directors of the corporation need 
not be by written ballot.

        TENTH:    The corporation hereby confers the power to adopt, amend or 
repeal bylaws of the corporation upon the directors.

        IN WITNESS WHEREOF, I have hereunto set my hand this 27 day of December,
1993.

                                             /s/ Kenna M. Hudson
                                             -------------------------------
                                             Kenna M. Hudson
                                             Sole Incorporator