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Authorized Generic of VIAGRA®

PEAPACK, NJ, December 2017—Greenstone LLC, a US-based subsidiary of Pfizer Inc. (NYSE: PFE), is pleased to announce the introduction of Sildenafil Citrate tablets to its ever-expanding generic pharmaceutical product line. The product is offered and available in presentations of 25 mg, 50 mg, and 100 mg tablets.
Greenstone’s Sildenafil Citrate tablets is the authorized generic of, and equivalent to the innovator’s product, VIAGRA® (sildenafil citrate). This new authorized generic adds to Greenstone’s consistently growing line of products and is backed by the distribution and customer service support of Pfizer Inc., one of the world’s premier biopharmaceutical companies. As a subsidiary of Pfizer Inc., Greenstone operates under the same values and commitment to bring quality pharmaceutical products to customers, payers, and the patients it serves.
See the Full Prescribing Information for Greenstone’s Sildenafil Citrate tablets at For more information about Greenstone LLC and its products, visit
VIAGRA is a registered trademark of Pfizer Inc.