Aromasin Products: Brand, Generic Exemestane and What to Avoid

Aromasin is Pfizer's brand of exemestane, and it comes in exactly one form: a 25 mg tablet in a bottle of 30. Every generic exemestane approved in the United States is the same 25 mg tablet. There is no 12.5 mg tablet, no liquid, no capsule and no injectable on any FDA label, which is why the on-cycle doses users describe, 12.5 mg every other day, are made by splitting a 25 mg tablet. Everything else sold as "Aromasin" or "exemestane" online, liquid research chemicals and underground-lab tablets, is outside the regulated market and has no label to check against.

This page lists the pharmaceutical products, how to recognise them, what they cost and how the unregulated versions differ. What Aromasin is and how it works covers the drug itself.

The Aromasin label on DailyMed, revised December 2024, describes a round, biconvex, off-white to slightly gray tablet printed with "7663" in black on one side, 25 mg of exemestane each, in an HDPE bottle of 30 with a child-resistant cap, NDC 0009-7663-04. Inactive ingredients include mannitol, crospovidone, polysorbate 80, hypromellose, colloidal silicon dioxide, microcrystalline cellulose and sodium starch glycolate. Storage is 25°C (77°F) with excursions to 15 to 30°C.

Aromasin was approved in 1999 and is the reference product for every generic. It is priced as a cancer drug for insured patients; nobody buying for off-label use pays brand price, and a site offering "Pfizer Aromasin" at generic prices is selling something else.

Generic exemestane must match Aromasin's blood levels within the FDA's bioequivalence window and is rated substitutable, so a pharmacy can dispense any maker's tablet against an Aromasin prescription. DailyMed carried 14 exemestane labels in November 2026. The tablets differ in coating and imprint; the descriptions below are from the labels.

None of these tablets is scored. Users who run 12.5 mg split a tablet with a pill cutter; the label does not describe splitting, and a coated tablet halves less cleanly than a plain one, so the Aurobindo and Upsher-Smith style plain tablets are the ones users report as easiest to divide. Doses are in the Aromasin 25 mg dosage guide.

Price is the only real difference between products, and it is large. Brand Aromasin retails at a price set for insurance. Generic exemestane at a US chain is roughly $110 to 180 for 30 tablets at list, and a free GoodRx or SingleCare card brings it to about $17 to 38; mail-order and Cost Plus Drugs have listed it under $20 for 30. At 12.5 mg every other day a bottle of 30 lasts 120 days, so even the retail price is under $1.50 a day. Aromasin for sale walks through the prescription routes, TRT clinics included, and the coupon mechanics.

Two unregulated product types carry the name. "Liquid exemestane" from research-chemical vendors is sold with a "not for human consumption" disclaimer, and no approved liquid form of exemestane exists; the dose per millilitre depends entirely on the vendor's own quality control. Underground-lab tablets, often 25 mg, are sold alongside steroids with no label to verify. Both channels are discussed in Aromasin for sale; the short version is that they are not cheaper than generic pharmacy exemestane with a coupon, they are only available without a prescription, and every protocol in the literature was built on pharmaceutical tablets whose content is assayed to within a few percent of label.

Signs that an offer is not a pharmaceutical product: no prescription required with no research disclaimer; a strength other than 25 mg; "Pfizer Aromasin" at generic prices; a price below roughly $0.40 per tablet, where there is no margin for GMP manufacture.

Aromasin is the only steroidal, irreversible aromatase inhibitor on the market. Arimidex (anastrozole, 1 mg tablets) and Femara (letrozole, 2.5 mg tablets) are non-steroidal and reversible, which changes dosing frequency and what happens when they are stopped. The comparison, with the trial data and the user protocols for each, is in Aromasin vs Arimidex.

Aromasin.org is an independent educational resource. We are not affiliated with Pfizer, any pharmaceutical manufacturer, or healthcare provider. This content is for informational purposes only and does not constitute medical advice. Images on this site are illustrative artwork made for editorial purposes; they do not show real products, packaging or labels and are not an advertisement or an offer to sell.