Spironolactone is an aldosterone receptor antagonist and potassium-sparing diuretic.

Megestrol Acetate is a synthetic derivative of the naturally occurring female sex hormone progesterone with potential anti-estrogenic and antineoplastic activity.

Medroxyprogesterone acetate is a synthetic progestin that is derived from 17-hydroxyprogesterone.

Mifepristone is a progestational and glucocorticoid hormone antagonist.

Estrone is an aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen.

Estradiol is an Estrogen. The mechanism of action of estradiol is as an Estrogen Receptor Agonist.

Estriol is a hydroxylated metabolite of Estradiol or Estrone that has a hydroxyl group at C3, 16-alpha, and 17-beta position. Estriol is a major urinary estrogen.

Epiandrosterone is a dehydroepiandrosterone metabolite and a precursor of testosterone and estradiol with hypolipidemic and anabolic property.