Perandren: Testosterone Phenylacetate
Testosterone phenylacetate (TPA; brand names Perandren, Androject) is an androgen and anabolic steroid and a testosterone ester. Analogously to estradiol benzoate having been one of the first estrogen esters to be introduced, testosterone phenylacetate was one of the first testosterone esters to be introduced. However, since its introduction, it has largely been replaced by other esters, such as testosterone propionate.

