Milk of magnesia is an over-the-counter medication primarily used as a laxative to relieve occasional constipation and as an antacid to treat indigestion, heartburn, and sour stomach. It contains magnesium hydroxide, which works by drawing water into the intestines to soften stool and stimulate bowel movements, typically producing results within 30 minutes to 6 hours. As an antacid, it neutralizes stomach acid to alleviate symptoms of heartburn and indigestion
. Milk of magnesia is available in liquid, tablet, or chewable forms, and dosing varies based on age and the condition being treated. It is generally safe when used as directed but should not be taken in excess or for prolonged periods without medical advice. Common side effects may include diarrhea and abdominal discomfort
. Besides its digestive uses, milk of magnesia is sometimes used for skin conditions like acne or to reduce odor, though there is limited scientific evidence supporting these uses
