Belching is a release of gas through the mouth and is caused by excessive intestinal gas. Belching can be reduced by treating or preventing gas buildup. Several treatments are available over the counter to prevent or reduce gas.
According to the Mayo Clinic, Beano is an over-the-counter product that can be used to prevent gas by adding it to beans or vegetables before eating these foods.
People who are lactose intolerant may take over-the-counter lactase supplements such as Lactaid or Dairy Ease with foods that contain lactose. Lactase is a digestive enzyme that the body uses to digest lactose.
Simethicone is an over-the-counter product that breaks up bubbles in stomach gas and helps prevent belching.
Activated charcoal tablets are available in natural food stores and may help reduce gas and belching when taken before or after a mea.
Peppermint tea contains menthol and may have an antispasmodic effect on the muscles of the digestive tract that reduces gas, gas pain and belching.