Methenolone Acetate (Primobolan A) Methenolone Acetate (Primobolan A) (methenolone acetate), all things being equal, is an excellent oral steroid drug. Unlike most other oral steroids, Primobolan is not 17-alkylated and does not have liver toxicity problems. Methenolone is perhaps only half as potent by the oral route as by injection, so dosages need to be [...]