Melox Advance Regular Strength Antacid is a quick relief antacid liquid that works to neutralize excess acid in the stomach that resulted from consuming a large amount of food that will protect the esophagus from stomach acid. The esophagus is not ready to handle stomach acid. Melox contains simethicone that helps reduce flatulence or gas that occurs frequently when you eat too much. Melox is a quick relief antacid liquid that works to neutralize acid in the stomach and relieve heartburn, reflux, and an upset stomach! Melox Liquid Antacid + Anti-Gas Classic has a smooth mint taste with extra coating power. It works instantly to neutralize stomach acid so you can continue on your day without stomach upset. Melox is gentle on your body and can be used as directed every day. Try our great taste!!