Anabolic steroids are a type of substances whose chemical composition is similar to hormones such as testosterone. These substances are used by many sports persons and body builders to improve their fitness, and to increase their stamina and strength. In many sports, use of such substances is therefore illegal, because they are deemed to give undue advantage to their users. Apart from their illegality in many sports, there still are many negative side effects of anabolic steroids. Here we will discuss the 4 main disadvantages of using anabolic steroids.
Many hormones and their structural and functional analogs are used as medication . The most commonly prescribed hormones are estrogens and progestogens (as methods of hormonal contraception and as HRT ),  thyroxine (as levothyroxine , for hypothyroidism ) and steroids (for autoimmune diseases and several respiratory disorders ). Insulin is used by many diabetics . Local preparations for use in otolaryngology often contain pharmacologic equivalents of adrenaline , while steroid and vitamin D creams are used extensively in dermatological practice.