TOPICS: Testosterone, methyltestosterone, agonist at androgen receptors, treat symptoms of hypogonadism, decreased libido, energy, body mass, bone density, development of secondary sex characteristics, stimulate anabolism, promote recovery after burn or injury, masculinization in females, hirsutism, acne, breast atrophy, male pattern baldness, decreases release of lh via negative feedback, decreased endogenous testosterone synthesis, gonadal atrophy, decreased sperm count, premature closure of epiphyseal plates, increased ldl, decreased hdl