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Greenstone Selected as Eisai Partner to Launch Authorized Generic of Aricept® (donepezil HCl) Tablets

- Agreement rapidly expands Greenstone's line of Authorized Generics

PEAPACK, N.J., September 8, 2010 — Generic pharmaceutical medicine distributor Greenstone LLC, a subsidiary of Pfizer Inc.'s in U.S. that sells generic versions of Pfizer's as well as certain other generic pharmaceutical products, today announced that it has entered into an agreement with Eisai, Inc. to sell donepezil HCl tablets as the Authorized Generic of Aricept®. An authorized generic is a product manufactured under the brand product's new drug application, or NDA, and marketed as a generic. The Greenstone versions will be the same size, shape and color as the brand versions. The Greenstone product will be available in 5 mg and 10 mg tablets, and available in multiple trade packages.

"We are excited about the opportunity to work with Eisai to introduce this important Authorized Generic to patients," stated James Cannon, Vice President, Greenstone Business Alliances. "First and foremost, our goal is to provide donepezil HCl tablets to the broad customer base, and we also strive to remain competitive with other potential generic versions of the product."

Greenstone donepezil HCL tablets will complement the consistently growing line of both Authorized Generics and ANDA [Abbreviated New Drug Application] products from Greenstone.

As a subsidiary of Pfizer Inc, Greenstone is backed by the power and scale of Pfizer's 161-year expertise in integrity, quality and supply reliability. Greenstone is supported by Pfizer's global science and technology resources in research and development, supply contract manufacturing, and supply chain to deliver every day on its commitment to product safety. As part of Pfizer, Greenstone operates under the same values and commitment while bringing quality authorized generics to the customers, payers, and the patients it serves.

Aricept® [donepezil HCl] is a registered trademark of Eisai, Inc.