Trenbolone
Trenbolone, also known as trienolone or trienbolone, is a steroid used on livestock to increase muscle growth and appetite. To increase its effective half-life, trenbolone is administered as a prodrug as an ester conjugate such as [trenbolone acetate], trenbolone enanthate, or trenbolone cyclohexylmethylcarbonate. Plasma lipases then cleave the ester group in the bloodstream leaving free trenbolone.