The H2 blocker is another type of medicine that can help people with GERD, although it is not as powerful or effective as the proton pump inhibitor for patients with cases.
Some H2 Blockers are sold over the counter; stronger dosages must be prescribed. Tagamet, Zantac, Pepxid, and Axid Pulvules are all examples of H2 blocker that are available both as over-the-counter medications and at higher dosages when prescribed by your doctor.
Combined antacid and H2 blocker medications provide immediate acid neutralization via the antacid component and suppression of further acid secretion by the H2 blocker. If you anticipate a heartburn attack after a heavy meal or exercise, take an over-the-counter H2 blocker, perferably before the event. Prescription strength is usually twice the dosage available as an over-the-counter dormulation.