Phillips Peppermint Milk of Magnesia 350ml contains magnesium hydroxide, a compound that decreases stomach acidity. As a laxative, it acts by increasing water retention inside the intestine, thus helping to soften the stool and promote intestinal movement. You should not use this medication if you have a history of allergies to any components of the formula. This medication should not be used by pregnant women without medical or dental advice. Tell your doctor or dentist if you are taking any other medication. INDICATION: As a laxative to treat occasional constipation and as an antacid to relieve heartburn, poor digestion and excess acidity in the stomach. DO NOT USE THIS MEDICINE IN CASE OF KIDNEY DISEASE. IF SYMPTOMS PERSIST A DOCTOR SHOULD BE CONSULTED.