Evista

(ee-VIS-tuh) A drug used to reduce the risk of invasive breast cancer in postmenopausal women who are at a high risk of developing the disease or who have osteoporosis. It is also used to prevent and treat osteoporosis in postmenopausal women and is being studied in the prevention and treatment of other conditions. Evista blocks the effects of the hormone estrogen in the breast and increases the amount of calcium in bone. It is a type of selective estrogen receptor modulator (SERM). Also called raloxifene and raloxifene hydrochloride.