‣ Dosage Form: Chewable tablets. ‣ Active Ingredients: Aluminum hydroxide, magnesium hydroxide, simethicone. ‣ Uses: Provides relief from acid indigestion, heartburn, and gas. ‣ Dosage: One to two tablets chewed four times a day, after meals and at bedtime, or as directed by a doctor. ‣ Warnings & Precautions: Do not use if you have severe kidney disease or if you are on a magnesium-restricted diet. Possible side effects include constipation or diarrhea.