Ranitidine

Ranitidine is an anti-histamine that acts on the H2 histamine receptor, but was withdrawn from sale in the United States in 2020. Ranitidine is used to treat and prevent ulcers in the stomach and intestines, to treat gastroesophageal reflux disease (GERD), and to reduce stomach acid in Zollinger-Ellison syndrome. It is sold under the brand name Zantac.

Risks and safety
Rantidine was withdrawn from sale in the US in 2020 due to safety issues, after a cancer-causing impurity was found to be present at in many rantidine products.