JOINT FILING AGREEMENT ----------------------

                                                                     Exhibit 7.1
                                                                     -----------

                             JOINT FILING AGREEMENT
                             ----------------------

     In accordance with Rule 13d-1(k) promulgated under the Securities Exchange
Act of 1934, as amended, the persons names below agree to the joint filing on
behalf of each of them a Statement on Schedule 13D (including amendments
thereto) with regard to the common stock of Scios Inc., and further agree that
this Joint Filing Agreement be included as an Exhibit to such joint filings. In
evidence thereof, the undersigned, being duly authorized, hereby execute this
agreement as of the 29th day of August, 2000.


Date:  August 29, 2000                  /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                        -------------------------------
                                        ▇▇▇▇▇▇ ▇. ▇▇▇▇


Date:  August 29, 2000                  RJK, L.L.C.


                                        By:   /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              -------------------------
                                              ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              Manager


Date:  August 29, 2000                  KIRKFIELD, L.L.C.


                                        By:   /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              -------------------------
                                              ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              Manager


Date:  August 29, 2000                  THE ▇▇▇▇ FAMILY INVESTMENT PLAN


                                        By:   /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              -------------------------
                                              ▇▇▇▇▇▇ ▇. ▇▇▇▇, individually and
                                              as attorney-in-fact for each of
                                              ▇▇▇▇▇ ▇. ▇▇▇▇, ▇▇▇▇▇▇ ▇.▇▇▇▇,
                                              ▇▇▇▇▇▇ ▇. ▇▇▇▇ and ▇▇▇▇▇▇ ▇▇▇▇▇
                                              ▇▇▇▇▇


                              Page 12 of 13 Pages


Date:  August 29, 2000                  ▇.▇. ▇▇▇▇ TRUST UNDER DECLARATION OF
                                        TRUST DATED MARCH 29, 2000


                                        By:   /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              -------------------------
                                              ▇▇▇▇▇▇ ▇. ▇▇▇▇
                                              Trustee


                              Page 13 of 13 Pages