Oxymesterone (, ) (brand names Anamidol, Balnimax, Oranabol, Sanaboral, Theranabol, Tubil), also known as methandrostenediolone, as well as 4-hydroxy-17ñ-methyltestosterone or 17ñ-methylandrost-4-en-4,17ò-diol-3-one, is an orally active anabolic-androgenic steroid (AAS). It was known by 1960.