Last Updated November 12, 2020 Zantac is the product name for the drug ranitidine. Approved by the U.S. Food and Drug Administration (FDA) in 1984 for the treatment and prevention of ulcers, heartburn, esophagitis, and Zoeller-Ellison syndrome, Zantac quickly rose to become one of the most popular prescriptions and over-the-counter (OTC) H2-blockers on the market. … Continue reading Zantac Cancer Risk