Acid Calm ( previously Acidil)Stop the churning and burning with AcidCalm Meltaway Tablets by Boiron. They melt in your mouth to relieve occasional heartburn, acid indigestion, bloating, and upset stomach.* Made with plant based active ingredients, this homeopathic heartburn medicine is easy to take before or after meals on a full or empty stomach. AcidCalm has no known drug interactions and is gluten free with no artificial sweeteners, flavors, colors, or preservatives. Suggested