Phillips Milk of Magnesia Liquid Magnesium Laxative & Antacid Original 12 Ounce (Pack Of 2) Get fast, stimulant-free and cramp-free relief from occasional constipation with Phillips Milk of Magnesia Laxative. Phillips Milk of Magnesia Original Flavor liquid laxative works with the body's natural process to relieve occasional constipation and helps you get back to regular. Formulated with Magnesium Hydroxide, Phillips' Milk of Magnesia offers cramp-free, gentle relief of occasional constipation without the use of harsh stimulants. Gives you gentle, overnight relief. This classic, medicine-cabinet standard is available in three soothing liquid flavors: Original, Wild Cherry, and Fresh Mint. The #1 Milk of Magnesia brand, Phillips' trusted name has over 140 years of trusted digestive health expertise. This product ships as one 12-fluid ounce bottle.