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EXHIBIT 23.3
CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
We consent to the reference to our firm under the caption "Experts" in
the Registration Statement (Form S-3) and related Prospectus of Advance
Paradigm, Inc. for the registration of 3,499,997 shares of its common stock and
to the incorporation by reference therein of our reports dated January 14, 1999
and April 21, 2000 (except Note 12 to the April 21, 2000 report, as to which the
date is June 15, 2000), with respect to the consolidated financial statements of
PCS Holding Corporation and Subsidiaries included in Advance Paradigm, Inc.'s
Form 8-K/A dated October 26, 2000, filed with the Securities and Exchange
Commission.
/s/ Ernst & Young, LLP
Phoenix, Arizona
October 20, 2000
