Mastabol Masteron Depot Dromastolone Enanathate, Dromastolone Propionate 10 ml Mastabol British Dragon is synthetic derivative of dihydrotestosterone, displaying potent androgenic effect that is responsible for increases in muscle density and hardness and a moderate anabolic effect that creates a positive nitrogen balance in humans and promotes protein synthesis. Since it is a derivative of dihydrotestosterone, dromastolone does not aromatize in any dosage and thus it cannot be converted into estrogen. Therefore, estrogen-related water retention is eliminated. Mastabol 200 Depot combines the fast-acting propionate form with the longer acting enanthate form. Each 10 ml multidose vial contains 150 mg per ml of dromastolone enanthate and 50mg of dromastolone propionate. Flip-off tops are gray-coloured and have Mastabol Depot stamped on them.