CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Annual Report of D & K Healthcare Resources,
Inc. ("Company") on Form 10-K for the period ended June 30, 2002 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I, J.
Hord Armstrong, III, Chairman of the Board and Chief Executive Officer of the
Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. ss. 1350,
as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:


1.   The Report fully complies with the requirements of section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of Company.


Dated September 24, 2002

                                           /s/ J. Hord Armstrong, III
                                           --------------------------

                                           J. Hord Armstrong, III
                                           Chairman of the Board and
                                           Chief Executive Officer






                                       7







                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Annual Report of D & K Healthcare Resources,
Inc. ("Company") on Form 10-K for the period ended June 30, 2002 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Thomas S. Hilton, Senior Vice President and Chief Financial Officer of Company,
certify, to the best of my knowledge, pursuant to 18 U.S.C. ss. 1350, as adopted
pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:


1.   The Report fully complies with the requirements of section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of Company.


Dated September 24, 2002

                                                     /s/ Thomas S. Hilton
                                                     --------------------

                                                     Thomas S. Hilton
                                                     Senior Vice President and
                                                     Chief Financial Officer



                                       8