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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
Amendment No. 3 to the Registration Statement (Form S-3 No. 333-30142) and
related Prospectus of Connetics Corporation for the registration of 139,255
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
June 7, 2000
