Methenolone enanthate (Primobolan) is an injectable steroid derivative of dihydrotestosterone (DHT) with a mild myotrophic activity index of 0.85 and a low androgenic index of 0.12. Its half-life is dose dependent, and is generally between 5 and 10 days. Methenolone is considered one of the safer steroids, meaning it has few side effects.
Due to low androgenic activity, Methenolone does not suppress endogenous testosterone secretion. Methenolone also is not overly suppressive of the hypothalamic-pituitary axis (HPTA) but will become suppressive with increased doses. Primobolan is the number 1 choice for female athletes and bodybuilders next to Anavar since it offers them an excellent anabolic profile without the worry of virilization, but is of little to no use for males other than in the final 4 weeks of competition preparation and or as a PCT bridging component (see PCT stack in Cycles and Stacks).
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Dosage and administration:
Half life 4 days
Adult dose (male): 100-300mg ED, EOD by intramuscular injection
Adult dose (female): 25-50mg ED,EOD by intramuscular injection
Average Cycle Length: 4-12 weeks following an EOD injection pattern
Anabolic #: 88
Androgenic #: 44-57
Bioavailability: Estimated at 100%
CAS Name:(5,17)-1-methyl-3-oxoandrost-1-en-17-yl heptanoate
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Hematologic: Suppression of clotting factors II, V, VII, and X, bleeding in patients on concomitant anticoagulant therapy, and polycythemia.
Androgens are contraindicated in men with carcinomas of the breast or with known or suspected carcinomas of the prostate and in women who are or may become pregnant.
Methenolone is one of the safest anabolic/androgenic steroids (AAS) and has a very minimal effect of cholesterol levels.