Prospectus Supplement No. 3                     Filed Pursuant to Rule 424(b)(3)
(To Prospectus Dated September 6, 2001)            Commission File No. 333-68278

                          AMERISOURCEBERGEN CORPORATION

                         AMERISOURCE HEALTH CORPORATION

$300,000,000 Principal Amount of 5% Convertible Subordinated Notes Due December
2007 and 5,663,730 Shares of Common Stock Issuable Upon Conversion of the Notes

This prospectus supplement relates to the resale by the holders of 5%
Convertible Subordinated Notes Due December 1, 2007 of AmerisourceBergen
Corporation and AmeriSource Health Corporation and the shares of common stock,
$.01 par value per share, of AmerisourceBergen Corporation issuable upon the
conversion of the notes.

This prospectus supplement should be read in conjunction with, and may not be
delivered or utilized without, the prospectus dated September 6, 2001, including
any amendments or supplements thereto. The terms of the notes are set forth in
the prospectus.

The information in the table appearing under the heading "Selling
Securityholders" in the prospectus is amended by adding the information below
with respect to persons not previously listed in the prospectus or in any
amendments or supplements thereto, and by superceding the information with
respect to persons previously listed in the prospectus or in any amendments or
supplements thereto that are listed below:


                                                                            Shares of Common
                                         Amount of Notes       Amount of      Stock Owned            Shares
                                          Owned Before        Notes that        Before            that May be
            Name                            Offering          May be Sold      Offering               Sold
-------------------------------------     -------------      ------------   ----------------      -----------
                                                                                      
Alexandra Global Investment
     Fund I, Ltd...................       $   2,500,000      $  2,500,000           0                  47,198

Chrysler Corporation Master
     Retirement Trust..............       $       0          $      0               0                     0

Delta Air Lines Master
     Trust.........................       $       0          $      0               0                     0

Delta Pilots D&S Trust.............       $       0          $      0               0                     0

Motion Picture Industry
     Health Plan - Active
     Member Fund...................       $       0          $      0               0                     0





                                                                            Shares of Common
                                         Amount of Notes       Amount of      Stock Owned            Shares
                                          Owned Before        Notes that        Before            that May be
            Name                            Offering          May be Sold      Offering               Sold
-------------------------------------     -------------      ------------   ----------------      -----------
                                                                                      

Motion Picture Industry
     Health Plan - Retiree
     Member Fund...................       $       0          $      0               0                     0

OCM Convertible Trust..............       $       0          $      0               0                     0

Partner Reinsurance
     Company Ltd...................       $       0          $      0               0                     0

State Employees' Retirement
     Fund of the State of
     Delaware......................       $       0          $      0               0                     0

State of Connecticut
     Combined Investment
     Funds.........................       $       0          $      0               0                     0

Vanguard Convertible
     Securities Fund, Inc. ........       $       0          $      0               0                     0

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

The securities offered by the prospectus involve a high degree of risk. See
"Risk Factors" beginning on page 9 of the prospectus.

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

    Neither the Securities and Exchange Commission nor any state securities
  commission has approved or disapproved of these securities or determined if
   this prospectus supplement or the prospectus is truthful or complete. Any
             representation to the contrary is a criminal offense.

          The Date of this Prospectus Supplement is November 13, 2001.