EXHIBIT 23.2 CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the Incentive Stock Option, Non-qualified Stock Option, and Restricted Stock Purchase Plan - 1991 of SONUS Pharmaceuticals, Inc. of our report dated January 31, 1997 with respect to the financial statements of SONUS Pharmaceuticals, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 1996 filed with the Securities and Exchange Commission. ERNST & YOUNG LLP Seattle, Washington September 3, 1997