Omeprazole vs. Esomeprazole

Omeprazolenoun

(pharmaceutical drug) A substituted benzimidazole (trademark Losec, Prilosec) which is a proton pump inhibitor and inhibits secretion of gastric acid, being given orally in the treatment of ulcers and gastroesophageal reflux; 5-methoxy-2-(4-methoxy-3,5-dimethyl-2-pyridylmethylsulfinyl)benzimidazole, C17H19N3O3S.

Omeprazolenoun

antacid (trade name Prilosec) that suppresses acid secretion in the stomach

Omeprazole

Omeprazole, sold under the brand names Prilosec and Losec among others, is a medication used in the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger–Ellison syndrome. It is also used to prevent upper gastrointestinal bleeding in people who are at high risk.

Esomeprazolenoun

(pharmaceutical drug) An isomer of omeprazole (trademark Nexium) that is administered in the form of its magnesium salt (C17H18N3O3S)2Mg especially in the treatment of erosive esophagitis, gastroesophageal reflux disease, and duodenal ulcer.

Esomeprazole

Esomeprazole, sold under the brand name Nexium among others, is a medication which reduces stomach acid. It is used to treat gastroesophageal reflux disease, peptic ulcer disease, and Zollinger–Ellison syndrome.