The patent for Aromasin (exemestane) has expired, and a generic version of the breast cancer drug is now available. It comes in one strength and is made by Roxane Laboratories, Inc, and Greenstone LLC. The FDA has given the generic version an "AB" rating, which means it is considered equivalent to the brand-name product.
Can I Buy Generic Aromasin?
Aromasin® (exemestane) is a prescription medication used to treat breast cancer in postmenopausal women. It is part of a group of medications called aromatase inhibitors.
Brand-name Aromasin is manufactured by Pfizer, Inc. However, the patent for this medicine has expired, and it is now available in generic form.
Aromasin is available in generic form in one strength: exemestane 25 mg tablets.
Who Makes Generic Aromasin?
Generic Aromasin is made by Roxane Laboratories, Inc., and Greenstone LLC. The version made by Greenstone is an "authorized generic," which means that it is actually made by Pfizer and is actually the real, brand-name tablet but is packaged and sold as a generic.
Is Generic Exemestane as Good as Aromasin?
All generic medications must undergo certain tests to compare them to brand-name medications. The U.S. Food and Drug Administration (FDA) then looks at these tests to decide if the generics are equivalent to the brand-name medications and assigns a rating to each one.
An "AB" rating means that the FDA has determined that a generic medication is equivalent to a brand-name medication. The generic exemestane currently available has an "AB" rating, meaning it should be equivalent to Aromasin.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Aromasin [package insert]. New York, NY: Pfizer, Inc.;2011 March.
Drug Store News (DSN). Greenstone launches authorized generic of Aromasin (5/6/11). DSN Web site. Available at: http://drugstorenews.com/article/greenstone-launches-authorized-generic-aromasin. Accessed May 25, 2011.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed April 30, 2011.
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