Acidil works naturally with your body to temporarily relieve occasional heartburn, acid indigestion, bloating or upset stomach. Its four natural active ingredients are the most commonly used homeopathic medicines that address these symptoms. Acidil does not cause drowsiness, constipation or gas. It does not interact with other medications, and it is not contraindicated with pre-existing conditions. Acidil does not contain aluminum hydroxide, which may cause constipation, or magnesium hydroxide, which may cause diarrhea. Recommended for everyone ages 12 and up, Acidil is available in a box of 60 quick-dissolving tablets.