Tamoxifen is an antagonist of the estrogen receptor in breast tissue via its active metabolite, Hydroxytamoxifen. In other tissues such as the endometrium, it behaves as an agonist, and thus may be characterized as a mixed agonist/antagonist.
Tamoxifen is the usual endocrine (anti-estrogen) therapy for hormone receptor-positive breast cancer in pre-menopausal women, and is also a standard in post-menopausal women although aromatase inhibitors are also frequently used in that setting. However, Tamoxifen is popular with anabolic steroid users to reduce the build up of breast tissue (gynecomastia) caused by the excess aromatization of testosterone to estrogen.
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Half life:5 days
20mg per day or every other day as required
Average Cycle Length: 2-6weeks
Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 90%
CAS Name: (Z)-2-[4-(1,2-diphenylbut-1-enyl)phenoxy]-N,N-dimethylethanamine
Synonyms: Tamoxifen, Nolvadex, Genox, PCT
Tamoxifen Citrate Tablets are contraindicated in patients with known hypersensitivity to the drug
Adverse reactions which are seen infrequently are hypercalcemia, peripheral edema, distaste for food, pruritus vulvae, depression, dizziness, light-headedness, headache, hair thinning and/or partial hairloss, and vaginal dryness.
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