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A synthetic methylated derivative of testosterone, C20H30O2, used to treat deficiency of natural testosterone in men and metastatic breast cancer in menopausal women, and also used in combination with esterified estrogens in hormone replacement therapy.


(ˌmɛθ əl tɛˈstɒs təˌroʊn)

a synthetic androgenic steroid drug, C20H30O2, used for its anabolic properties in males in the treatment of androgen-deficiency disease states, and in females in the treatment of breast cancer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.methyltestosterone - an androgenic compound contained in drugs that are used to treat testosterone deficiency and female breast cancer and to stimulate growth and weight gain
androgen, androgenic hormone - male sex hormone that is produced in the testes and responsible for typical male sexual characteristics
References in periodicals archive ?
Permission to suppress is dependent upon a trainer using a product licensed by the government agency (Veterinary Medicines Directorate) for this purpose and the only two anabolic steroids included are testosterone and methyl-testosterone.
A short-term, 16-week randomized clinical trial (RCT) that compared estrogen to estrogen plus methyltestosterone replacement in postmenopausal women found significant increases in total lean body mass with reduced percentage fat and an increase in lower body muscle strength in the estrogen plus methyl-testosterone group.
Masculinization was induced through dietary exposure of 50 [micro ]g/g methyl-testosterone and anal fins were photographed weekly throughout the masculinization process.