AGREEMENT TO JOINTLY FILE AMENDMENT NO. 1 TO SCHEDULE 13D The undersigned hereby agree to jointly prepare and file with regulatory authorities an Amendment No. 1 to Schedule 13D and any future amendments thereto reporting each of the undersigned's...

                                    EXHIBIT 1

                                    AGREEMENT
                                       TO
                   JOINTLY FILE AMENDMENT NO. 1 TO SCHEDULE 13D

    The undersigned hereby agree to jointly prepare and file with regulatory
authorities an Amendment No. 1 to Schedule 13D and any future amendments
thereto reporting each of the undersigned's ownership of securities of Option
Care, Inc. and hereby affirm that such Amendment No. 1 to Schedule 13D is
being filed on behalf of each of the undersigned.

DATED:  October 5, 1999            EJ FINANCIAL/OCI MANAGEMENT, L.P.
        Chicago, Illinois



                                   BY: /s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇
                                       ----------------------------------
                                       ▇▇▇▇ ▇. ▇▇▇▇▇▇
                                       Its Managing General Partner



DATED:  October 5, 1999                /s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇
        Chicago, Illinois              ----------------------------------
                                       ▇▇▇▇ ▇. ▇▇▇▇▇▇