is a potent 17-alpha alkylated derivative of dihydrotestosterone. This is a potent anabolic and androgenic drug despite being weakly bound to the androgen receptor. Oxymetholone 50 promotes protein anabolism and rapid weight gain but has the potential for substantial adverse reactions. Oxymetholone 50 promotes increased strength, muscle mass, and growth of new red blood cells. CAS number: 434-07-1. Dosation: 50 tabs/bottle.