Non-medical users of anabolic steroids often “stack” different anabolic steroids over the course of a “cycle” of use. They also administer various ancillary drugs and substances to enhance the desired effects of anabolic steroids or to minimize adverse side effects. The most common liquid (injectable) anabolic steroids encountered in these cases are (oil-based) esters of testosterone (., testosterone cypionate, testosterone enanthate, and testosterone propionate, and a blend of testosterone esters called Sustanon 250) or nandrolone (., nandrolone decanoate). Also popular are Equipoise (boldenone undecylenate) and trenbolone acetate and trenbolone enanthate, as well as the water-based injectable Winstrol (stanozolol). Popular oral anabolic steroids include methandrostenolone (Dianbol), oxandrolone (Anavar) and oxymetholone (Anadrol 50).
Users on an oral steroid cycle may experience a sudden increase in body weight and muscular development, insomnia, irritability, aggressive combative behavior, puffy face, severe acne, bad breath, a yellowing of the eyes and skin, premature hair loss, hyperactivity, and exaggerated mood swings that include uncontrollable outbursts of anger. Males may also experience testicular shrinkage and can develop female breast tissue on the pectoral muscles. Females may also experience a deeper voice and decreased breast size. Continued use can result in life-threatening situations involving the liver, cardiovascular system, and brain.