1. What is Acid Reflux? Acid reflux is a painful condition that affects millions of people all over the world. It is caused when your stomachs digestive acids make their way up into the esophagus. Quickly relieve heartburn associated with acid indigestion and sour stomach with Pepcid Complete Acid Reducer + Antacid Chewable Tablets. These berry-flavored chewable tablets combine a fast-working antacid and a long lasting acid reducer to help control acid all day and night.* Professional guide for Famotidine. Includes: pharmacology, pharmacokinetics, contraindications, interactions, adverse reactions and more. Get heartburn relief that works fast & lasts with PEPCID COMPLETE®. The chewable tablet neutralizes stomach acid as a dual-action antacid & acid reducer. The Best Heartburn Medicine. The best heartburn medicine should provide fast, effective relief from stomach acid. We talked to doctors and dug into clinical research to figure out the difference between antacids, H2 blockers, and proton pump inhibitors — and we learned that the best treatment depends on the severity of your symptoms. Pepcid is the brand name for famotidine, a drug that works to reduce the amount of acid your stomach produces. It's available as both a prescription medicine and an over-the-counter (OTC) medicine. During pregnancy, your body makes more of the hormone progesterone. This hormone may relax the valve between your stomach and esophagus. Most of the time, the valve stays closed to keep acid in. Famotidine Pregnancy and Breastfeeding Warnings. Famotidine is also known as: Acid Control, Acid Controller Maximum Strength, Acid Controller Original Strength, Acid Reducer Maximum Strength, Acid Reducer Original Strength, Acid Reducer-Famotidine, Fluxid, Heartburn Relief, Heartburn Relief Maximum Strength, Mylanta AR, Pepcid, Pepcid AC. Acid reflux occurs when stomach acid passes up out of the stomach and into the esophagus. The esophagus is also known as the gullet; it is the tube down which food passes on its way from the mouth to the stomach. COMMON BRAND NAMES. Acid Reducer, Ranitidine, Taladine, Wal-Zan, Zantac, Zantac 150, Zantac 75.