The active ingredient in Phillips Milk of Magnesia is magnesium hydroxide. One teaspoon of Milk of Magnesia contains 1200 milligrams of the saline laxative. Magnesium hydroxide an inorganic compound commonly used in laxatives and antacids.
Milk of Mangnesia is typically used to treat constipation. It is a laxative that works by drawing water into the intestines and triggering them to move. It may also be used to treat symptoms caused by excessive stomach acid, such as indigestion or heartburn. In this capacity, it works by lowering the amount of acid in the stomach.
Philips Milk of Magnesia comes in original, wild cherry and fresh mint flavors. It is stimulant free, and the product advertises that it does not cause abdominal or intestinal cramps. The recommended dose for adults is 2 to 4 tablespoons once a day.
The most common side effect of Milk of Magnesia is diarrhea. Consult a doctor if this symptom persists or worsens. Serious, less common side effects may include high magnesium levels, indicated by slow or irregular heartbeat, muscle weakness, slow breathing or mental confusion; stomach or abdominal pain; dehydration, indicated by dry mouth, decreased urination or excessive thirst; bloody stools; or rectal bleeding. Individuals experiencing any of these side effects should see a doctor immediately.