|Trade names||Arbolic, Durabolic, Or-Bolic, Probolik, Protabolin|
|Chemical and physical data|
|Molar mass||416.602 g/mol|
|3D model (Jmol)||Interactive image|
Methandriol dipropionate (brand names Arbolic, Durabolic, Or-Bolic, Probolik, Protabolin), or methylandrostenediol dipropionate, also known as 17α-methylandrost-5-ene-3,17-diol 3,17β-dipropionate, is a synthetic, injected anabolic-androgenic steroid (AAS) and a 17α-alkylated derivative of 5-androstenediol. It is an androgen ester – specifically, the C3,17β dipropionate ester of methandriol (17α-methyl-5-androstenediol) – and acts as a prodrug of methandriol in the body. Methandriol dipropionate is administered by intramuscular injection and, relative to methandriol, has an extended duration via this route of several days due to a depot effect afforded by its ester. It was marketed in the United States, but is no longer available in this country.
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