138530-95-7

(S)-Lansoprazole is a proton pump inhibitor that irreversibly inhibits H⁺/K⁺-stimulated ATPase pumps in parietal cells (IC₅₀ = 5.2 μM), inhibiting gastric acid secretion and increasing intragastric pH. It also inhibits acid formation in isolated canine parietal cells (IC₅₀ = 82 μM). (S)-Lansoprazole is an enantiomerically pure form of lansoprazole . Both (S)- and (R)-lansoprazole are pharmacologically active with similar potencies.

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The S-enantiomer of Lansoprazole; a gastric proton pump inhibitor. An antiulcerative

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