EXHIBIT 23.1 CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statements (Form S-3 and S-8) of our report dated August 26, 1996, with respect to the financial statements of Cypros Pharmaceutical Corporation included in the Annual Report (Form 10-K) for the year ended July 31, 1996. ERNST & YOUNG LLP (Signature) San Diego, California October 24, 1996