Methandriol (brand names Anabol, Crestabolic, Cytobolin, Diandren, Durabolic, Madiol, Mestenediol, Methabolic, Methydiol, Sterabolic, Stenediol), also known as methylandrostenediol, is an androgen and anabolic steroid (AAS) medication which was developed by Organon and is used in both oral and injectable (as methandriol dipropionate, methandriol propionate, or methandriol bisenanthoyl acetate) formulations.

[2][3][4] It is an orally active 17α-alkylated AAS and a derivative of the endogenous androgen prohormone androstenediol.

[2][3] Methandriol has been used in the treatment of breast cancer in women.

[5][6][7][8] It has been reported to be almost as virilizing as comparable doses of testosterone propionate and methyltestosterone in women.

[9] Methandriol (brand name Androteston M, Notandron, Protandren) was previously marketed as 25 mL and 50 mg/mL aqueous suspensions for use by intramuscular injection.