Megestol 160 mg contains Megestrol Acetate, a synthetic derivative of the hormone progesterone. It is primarily used in the treatment of hormone-responsive cancers such as breast and endometrial cancer, and as an appetite stimulant in conditions like cachexia, anorexia, and unintentional weight loss in patients with chronic illness such as cancer or HIV/AIDS.
Megestrol works by interacting with progesterone receptors and suppressing the effects of estrogen and other hormones that contribute to tumor growth. In appetite stimulation, it acts on the hypothalamus to enhance food intake and weight gain.