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Notes: Prevention of breast symptoms—specifically gynecomastia and breast pain—induced by 150 mg/day bicalutamide monotherapy with tamoxifen in 282 men with prostate cancer. Bicalutamide and tamoxifen were initiated at the same time (0 months). Estradiol levels were in the range of about 22 to 47 pg/mL in the treated group. [1] Sources: [2] [1]
Tamoxifen is a pure antiestrogenic trans-isomer and has differential actions at estrogen target tissues throughout the body. Tamoxifen is selectively antiestrogenic in the breast but estrogen-like in bones and endometrial cancer. [26] Tamoxifen undergo phase I metabolism in the liver by microsomal cytochrome P450 (CYP) enzymes.
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[11] [7] Peak levels of tamoxifen after a single 40 mg oral dose were 65 ng/mL and steady state levels at 20 mg/day were 310 ng/mL. [5] Levels of tamoxifen show clear dose dependency across a dosage range of 1 to 20 mg/day. [5] [93] Endoxifen levels are approximately 5 to 10 times higher than afimoxifene levels, with large interindividual ...
Tamoxifen is currently first-line treatment for nearly all pre-menopausal women with hormone receptor-positive breast cancer. [1] Raloxifene is another partial agonist SERM which does not seem to promote endometrial cancer , and is used primarily for chemoprevention of breast cancer in high-risk individuals, as well as to prevent osteoporosis ...
A 2024 study published in JAMA Network Open found that adults over 60 who regularly drank–classified as 1.5 drinks per day for women–had an increased risk of early death, increased risk of ...
Estrogen deprivation therapy, also known as endocrine therapy, is a form of hormone therapy that is used in the treatment of breast cancer.Modalities include antiestrogens or estrogen blockers such as selective estrogen receptor modulators (SERMs) like tamoxifen, selective estrogen receptor degraders like fulvestrant, and aromatase inhibitors like anastrozole and ovariectomy.
Tamoxifen may be used to treat gynecomastia in adults and of the medical treatments used, tamoxifen is the most effective. [ 61 ] [ 62 ] Recent studies have shown that treatment with tamoxifen may represent a safe and effective mode of treatment in cases of cosmetically disturbing or painful gynecomastia.