There are many over-the-counter (OTC) medications that can be used to treat bloating. Food enzymes can be found in some products that will help break down the sugars found in grains, vegetables and dairy products . They can be taken before food is consumed or added to the food that causes the gas and bloating. Another type of medicine is activated charcoal tablets which decrease the odor from gas. The most common treatment is antacids . These medications have no effect on the gas that is presently in the intestines, but enable gas build-up to be belched away more easily, reducing the amount of bloating that develops. Another treatment is Simethicone , an oral anti-foaming agent that helps the body to expel the gas more quickly. Also combinations of prokinetics , such as domperidone + metoclopramide + diphenhydramine (the latter for the prevention of extrapyramidal reactions, especially acute dystonic reactions) + proton pump inhibitors (PPIs), have dramatic effects on bloaters and belchers especially.