Amylin Pharmaceuticals Reports Second Quarter Financi...(s corporate Web site and by phone beginn...),Health

Note Regarding Use of Non-GAAP Financial Measures

Amylin reports non-GAAP operating loss excluding non-cash items and other one-time items, which is a non-GAAP financial measure. The Company believes that investors' understanding of its progress towards its stated goal of generating positive non-GAAP operating results by the end of 2010 is enhanced by this disclosure. Amylin also reports non-GAAP research and development expenses net of cost-sharing payments, which is a non-GAAP financial measure. The Company believes that investors' understanding of Amylin's net investment in research and development activities is enhanced by this disclosure. In addition, the Company refers to these non-GAAP financial measures with its analysis of the Company's financial performance. These non-GAAP financial measures should be considered in addition to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP.

About Amylin

Amylin Pharmaceuticals is a biopharmaceutical company committed to improving lives through the discovery, development and commercialization of innovative medicines. Amylin has developed and gained approval for two first-in-class medicines for diabetes, SYMLIN(R) (pramlintide acetate) injection and BYETTA(R) (exenatide) injection. Amylin's research and development activities leverage the Company's expertise in metabolism to develop potential therapies to treat diabetes and obesity. Amylin is headquartered in San Diego, California. Further information on Amylin Pharmaceuticals is available at www.amylin.com.

This press release contains forward-looking statements
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