Anabolic/androgenic steroids are generally well tolerated by the renal system. These drugs are largely excreted from the body through the kidneys, although there is no inherent strong toxicity in this process. In fact, there are many instances in which these drugs may be used as supportive treatment in patients with compromised kidney function. For example, anabolic steroids have been prescribed to increase the production of red blood cells in patients with anemia related to various forms of kidney disease. They have even been used as general anabolic (lean body mass) support, and to treat hypogonadism, in patients undergoing dialysis. While care must be taken with such patients, therapy may often be conducted very safely. In otherwise healthy individuals, clinical renal toxicity caused by the short-term administration of anabolic/androgenic steroids is unlikely.