Trenbolone acetate american pharma labs

Tibolone has tissue -selective estrogenic effects, with desirable effects in bone , the brain , and the vagina , and lack of undesirable action in the endometrium and breasts . [16] Its tissue selectivity is the result of metabolism , enzyme modulation (., of estrogen sulfatase and estrogen sulfotransferase ), and receptor modulation that vary in different target tissues, and differs mechanistically from that of selective estrogen receptor modulators (SERMs) such as tamoxifen , which produce their tissue-selectivity via means of modulation of the ER. [15] [16] As such, to distinguish it from SERMs, tibolone has been described as a "selective tissue estrogenic activity regulator" (STEAR), [16] and also as a "selective estrogen enzyme modulator" (SEEM). [17]

Some bodybuilders and athletes use trenbolone for its muscle-building and otherwise performance-enhancing effects. [ citation needed ] Such use is illegal in the United States and many other countries. The DEA classifies trenbolone as a Schedule III controlled substance under the Controlled Substances Act . [14] Trenbolone is classified as a Schedule 4 drug in Canada [15] and a class C drug with no penalty for personal use or possession in the United Kingdom . [16] Use or possession of steroids without a prescription is a crime in Australia . [17] The infamous "duchess" cocktail administered to Russian athletes at the Sochi Winter Olympics consisted of oxandrolone , metenolone , and trenbolone. [18]

Trenbolone acetate american pharma labs

trenbolone acetate american pharma labs

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