Ranitidine-N-oxide is a metabolite of Ranitidine. Ranitidine is a antagonist of histamine H2-receptor, it inhibits the normal and meal-stimulated secretion of stomach acid. Ranitidine is a medication decreaseing stomach acid production.
Ranitidine-S-oxide is a metabolite of Ranitidine. It is commonly used in the treatment of peptic ulcer disease, Zollinger–Ellison syndrome,and gastroesophageal reflux disease.