Zantac was originated by GSK and launched by the company in the early 1980s, which sold it as a prescription and over-the-counter (OTC ... shows that one ranitidine 300 mg tablet can contain ...

Ranitidine products are used to reduce the production of stomach acid in patients with conditions such as heartburn and stomach ulcers. They are available over-the-counter and on prescription.

According to the outlet, New York-based Pfizer sold over-the-counter ranitidine drugs also known as Zantac from 1998 through 2006. In 2019, a small laboratory in Connecticut found that ranitidine ...