Danazol possesses a complex pharmacology, with multiple mechanisms of action.[5][18][19] These include direct binding to and activation of sex hormone receptors, direct inhibition of enzymes involved in steroidogenesis, and direct binding to and occupation of steroid hormone carrier proteins and consequent displacement of steroid hormones from these proteins.[5][9][18][19] The drug is characterized as a weak androgen and anabolic, a weak progestogen, a weak antigonadotropin, and a functional antiestrogen.[5][20]