Tenatoprazole is a novel proton pump inhibitor with an imidazopyridine backbone. It has seven-fold longer plasma half-life. It is also called as 5-methoxy-2-(4-methoxy-3,5-dimethyl-pyridin-2-ylmethanesulfinyl)-1H-imidazo[4,5-b]pyridine.Tenatoprazole is a member of the class of covalent proton pump inhibitors.

Tenatoprazole is a proton pump inhibitor.

Tenatoprazole is a proton pump inhibitor. Tenatoprazole is an acid-activated prodrug that binds covalently to gastric H,K-ATPase, resulting in acid secretion inhibition. Tenatoprazole has a different structural class from omeprazole and most other proton pump inhibitors, with an imidazopyridine backbone rather than benzimidazole, which results in slower metabolism. Tenatoprazole thus has a long plasma half-life as compared to omeprazole, resulting in prolonged inhibition of acid secretion.

Tenatoprazole is used to maintain high diurnal and nocturnal pH levels. It prevents gastric H⁺,K⁺-ATPase with potency similar to omeprazole.