Methandrostenolone is a synthetic anabolic compound historically investigated for its effects on protein synthesis, nitrogen retention, and muscle development. Clinical use has been limited and subject to regulatory controls. In performance-focused research, Methandienone has been associated with increases in lean mass, strength-related outcomes, and training adaptation. Due to its potent anabolic activity, it remains a notable compound in sports-performance research, while ongoing evaluation continues regarding safety, efficacy, and long-term health considerations.