Testosterones action on the muscles has been observed by young male athletes who try to bulk up and recover faster. Medical uses of anabolic include CRF patients to stimulate red blood cell production. Prevention of angioneurotic edema. Stimulate linear bone growth and speeds up growth of secondary sexual characteristics, eg. Because they cannot be bioconverted into DHT or estradiol, they are not as biologically active.
All androgens appear to act on same receptors, but tissue sites vary in absorption and metabolism.
Oral androgens are used medically for those patients with bleeding disorders or intolerant of injections. Physiologic doses present no apparent health risks. A novel method of administration through a skin delivery system is now available pharmaceutically. They each deliver 4-6mg of testosterone daily and can be applied to the shaved scrotum or anywhere on the body . Androderm is a very similar preparation which releases 5 mg of T daily.