Molecular formula： C22H32O3
Molecular weight： 344.54
Appearance： white or off-white crystalline powder
Methenolone Acetate is the injectable version of the steroid methenolone powders. It is the same compound as the one in Primobolan Orals (methenolone acetate), both produced by Schering. In this injectable version, an enanthate ester is added to the steroid, which makes for a slow and gradual release from the site of injection. Its length of activity would thus be quite similar to Testosterone enanthate, with blood levels remaining elevated for approximately two weeks. Methenolone itself is a long acting anabolic, with extremely low androgenic properties. It’s anabolic effect is also quite mild, its potency is considered to be slightly less than Deca Durabolin (nandrolone decanoate) on a milligram for milligram basis. For this reason, Primobolan is most commonly used during cutting cycles when a mass increase is not the main goal. Some athletes do prefer to combine a mild anabolic like “Primo” with bulking drugs such as Dianabol, Anadrol, or testosterone however, presumably to lower the overall androgen dosage and minimize uncomfortable side effects. When choosing between Primobolan versions, the injectable is preferred over the oral, as it is much more cost effective. Primobolan (Methenolone Acetate) is void of the typical C17alpha alkylation common in nearly all oral anabolic steroids, and therefore Primobolan presents no measurable hepatotoxic effects on the body.
Oral Primobolan has failed to demonstrate any changes in liver enzyme values that would be cause for concern. Primobolan in particular does possess in its own right a resistance to hepatic metabolism and breakdown, and only one incidence of a death resultant of hepatotoxicity and liver failure from oral Primobolan has been recorded in one male elderly individual who was prescribed the compound for the purpose of treating anemia. Therefore, higher doses of oral Primobolan can indeed be utilized but it must be noted that oral Primobolan does still possess a measure of resistance to metabolism and breakdown in the liver, and therefore the risk of hepatotoxicity from Primobolan must not be completely ignored, especially as doses of the oral format are increased to higher and higher amounts.