What is "metandienone"

Metandienone ( INN) (trade names Averbol, Dianabol, Danabol, Metanabol, Naposim, Vetanabol), or methandienone ( BAN), also known commonly as methandrostenolone, and known also as 17α-methyl-δ-testosterone or 17α-methyl-1-dehydrotestosterone, is an orally active anabolic steroid originally developed in Germany and released in the United States in the early 1960s by Ciba Specialty Chemicals. Metandienone is a controlled substance in the United States and Western Europe and remains popular among bodybuilders. An injectable form is sold online from United States-based companies. Metandienone is readily available without a prescription in countries such as Mexico (under the trade name Reforvit-b), and is also manufactured in Asia and many Eastern European countries.