Estrogen Agonist/Antagonist

Where is Tamoxifen made?

5 companies sell it under their own name and 6 repackagers rebottle it. Their labels name 3 factories in India, the United States and the United Kingdom.

India 1United States 1United Kingdom 1
India: 1United States: 1United Kingdom: 1

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Mayne Pharma Inc. Soltamox10 mg, 20 mg, 20 mg per 10 mL · NDC 51862-642, 51862-643, 51862-682 Catalent Greenville, Inc.Makes it, tests it, packages it and labels it Greenville, NC, United StatesProblems found, fixed voluntarilyOct 2025
Rosemont Pharmaceuticals LimitedMakes it, tests it, packages it and labels it Leeds, United KingdomNo problems foundApr 2026
Aurobindo Pharma Limited10 mg, 20 mg · NDC 59651-299, 59651-300 EUGIA Pharma Specialities LimitedMakes it and tests it Medchal-Malkajgiri, IndiaNo problems foundJul 2023
Actavis Pharma, Inc.10 mg, 20 mg · NDC 0591-2472, 0591-2473The label doesn't name the factory. Plants this company names for other drugs
Dr. Reddy's Laboratories Inc.10 mg, 20 mg · NDC 75907-058, 75907-059The label doesn't name the factory. Plants this company names for other drugs
Mylan Pharmaceuticals Inc.10 mg, 20 mg · NDC 0378-0144, 0378-0274The label doesn't name the factory. Plants this company names for other drugs

Repackaged by

These companies buy Tamoxifen in bulk and rebottle it, often for mail-order, clinic or hospital pharmacies. If your bottle shows one of these names, open its NDC to see who made the pills inside.