The generic name of Rezidor is Bismuth Potassium Citrate Capsules, which is generally not recommended to be taken together with Teprenone Capsules because of their duplicated effects. 1. Bismuth potassium citrate capsule: used for chronic gastritis and stomach pain, acid reflux and heartburn induced by hyperacidity, can produce a diffuse protective layer covering the ulcer surface in the acidic environment of the stomach, preventing gastric acid, enzymes, and food from attacking the ulcer, and can also promote the release of prostaglandins from the mucosa to protect the gastric mucosa. 2. Teprenone capsule: used for gastric ulcer, acute gastritis and chronic gastritis disease exacerbation, can also be used for the improvement of gastric mucosal lesions, can promote the synthesis of gastric mucosal epithelium, but also to promote the secretion of macromolecular glycoproteins and bicarbonate, which can improve the gastric mucosal defense mechanism. The common adverse reactions of teprenone capsule include elevated aminotransferase, constipation, diarrhea, abdominal pain and headache, etc. It is forbidden for those who are allergic to teprenone capsule; the common adverse reactions of bismuth potassium citrate capsule include nausea, black stool and constipation, etc. It is forbidden for patients with severe renal disease and women during pregnancy. The use of the above drugs carries certain risks and requires the guidance of a specialist.