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EXHIBIT 23.1
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 Connetics
Corporation for the registration of 2,010,000 shares of its common stock and to
the incorporation by reference therein of our report dated January 14, 2000,
with respect to the consolidated financial statements of Connetics Corporation
included in its Annual Report (Form 10-K) for the year ended December 31, 1999,
filed with the Securities and Exchange Commission.
/s/ ERNST & YOUNG LLP
Palo Alto, California
July 3, 2000
