Anabolic-androgenic steroids promote skeletal muscle growth and the development of male sexual characteristics in women and men.
Some related substances also have accepted medical roles, such as treating delayed puberty, disease-related muscle loss or certain low-testosterone conditions. The presence of a medical use does not make every use medically appropriate, but neither should prescribed treatment be labeled misuse. The important distinction is whether use occurs as directed for a health condition or nonmedically for enhancement.
