Watson Confirms Lialda Patent Challenge

Watson Pharmaceuticals, Inc.

today confirmed that its subsidiary, Watson Laboratories, Inc. - Florida, filed an Abbreviated New Drug Application (ANDA) with the U.S. Food and Drug Administration (FDA) seeking approval to market Mesalamine Delayed-release Tablets, 1.2g. Watson's ANDA product is a generic version of Shire Development LLC's Lialda®.