Zantac® is a medication that is licensed to treat heartburn and conditions such as gastroesophageal reflux disease (GERD), stomach ulcers, erosive esophagitis, and pathological hypersecretory conditions. It is available both as an over-the-counter medication and as a prescription drug; some forms and strengths of the medicine are only available with a prescription. Zantac belongs to a class of drugs known as H2 blockers. Side effects of the medication may include upset stomach, headache, constipation, and diarrhea.
(Click Zantac for more detailed information about this medication, including information about how it works, other conditions it may be used to treat, and how and when to best take it.)