Uses & Effectiveness We currently have no information for CYANOSTANE [FAST FACTS] overview. Overview Cyanostane is a type of chemical known as a prohormone. It is converted in the body to testosterone and other sex hormones. Cyanostane is used for weight loss, to improve athletic performance, to reduce sexual problems, and for other uses, but there is no good scientific evidence to support its use. Cyanostane might also be unsafe. Cyanostane is banned by the World Anti-Doping Agency (WADA) and the National Collegiate Athletic Association (NCAA). Cyanostane is not a vitamin but a prohormone known as 2-cyano-17?-methyl-17?-hydroxyandrost-3-one. It is a derivative of DHT and was popular among bodybuilders because it was believed to promote muscle growth and strength gains. However, its use is illegal in many countries and can have severe health consequences. Side Effects When taken by mouth: Cyanostane is possibly unsafe for most people when taken by mouth. Side effects include liver damage, infertility, behavioral changes, hair loss, and others. Interactions We currently have no information for CYANOSTANE [FAST FACTS] overview. Special Precautionsand Warnings When taken by mouth: Cyanostane is possibly unsafe for most people when taken by mouth. Side effects include liver damage, infertility, behavioral changes, hair loss, and others. Pregnancy and breast-feeding: Cyanostane is possibly unsafe when pregnant or breast-feeding. Avoid using. Dosing There isn?t enough reliable information to know what an appropriate dose of cyanostane might be. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult a healthcare professional before using.