Proton-pump inhibitor - Pharmacy Freak

Mechanism of Action of Esomeprazole

April 10, 2026January 17, 2026 Pharmacy Freak Editorial Team Harsh Singh Rajput

Introduction Esomeprazole is a proton pump inhibitor (PPI) used extensively in the treatment of acid-related gastrointestinal disorders. It is the S-isomer of omeprazole and offers improved pharmacokinetic consistency and acid suppression compared with the racemic mixture. Esomeprazole is a high-yield drug for pharmacology and clinical examinations due to its irreversible enzyme inhibition, acid-activated mechanism, and … Read more

Omeprazole Chemical Structure

October 13, 2025 Harsh Singh Rajput

1. Identification SummaryOmeprazole is a proton-pump inhibitor (PPI) used to reduce gastric acid secretion, treating GERD, peptic ulcer disease, erosive esophagitis, and hypersecretory states; it is supplied as a racemic mixture and often dosed before meals. Brand NamesPrilosec, Losec, Zegerid (omeprazole/sodium bicarbonate); numerous generics (region-dependent) NameOmeprazole BackgroundA benzimidazole sulfoxide first approved in the late 1980s; … Read more