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Ranitidine, previously sold under the brand name Zantac [a] among others, is a medication used to decrease stomach acid production. [12] It was commonly used in treatment of peptic ulcer disease, gastroesophageal reflux disease, and Zollinger–Ellison syndrome. [12] It can be given by mouth, injection into a muscle, or injection into a vein.
Specialty professional organizations recommend that people take the lowest effective PPI dose to achieve the desired therapeutic result when used to treat gastroesophageal reflux disease long-term. [ 20 ] [ 21 ] [ 22 ] In the United States, the Food and Drug Administration (FDA) has advised that over-the-counter PPIs, such as Prilosec OTC ...
Ranitidine bismuth citrate 400 mg 2 times a day, metronidazole 500 mg 3 times a day, tetracycline 500 mg 4 times a day. Scheme 4. 2 times a day - ranitidine bismuth citrate 400 mg, tinidazole 500 mg, amoxicillin 1 g. Within 14 days - 2 drugs: Scheme 5. Ranitidine bismuth citrate 400 mg 2 times a day and clarithromycin 500 mg 2 or 3 times a day.
In 2020, the U.S. Food and Drug Administration asked drugmakers to pull Zantac and its generic versions off the market after a cancer-causing substance called NDMA was found in samples of the drug.
Ranitidine was introduced in 1981 and was the world's biggest-selling prescription drug by 1988. The H 2 receptor antagonists have since largely been superseded by the even more effective proton pump inhibitors (PPIs), with omeprazole becoming the biggest-selling drug for many years.
The U.S. Food and Drug Administration in 2020 pulled all brands named Zantac and generic versions of the drug off the market, triggering a wave of lawsuits. The drug, approved over four decades ...