Esomeprazole sodium

Chemical properties

Beige Solid

The Uses of Esomeprazole sodium

Esomeprazole sodium is a commonly used anti-ulcer drug. It was successfully developed by AstraZeneca for the first time. It is a proton pump inhibitor. The drug of choice for related diseases.
(S)-Omeprazole is the (S)-enantiomer of Omeprazole (O635000) a gastric proton-pump inhibitor. (S)-Omeprazole is more potent that its (R)-enantiomer and is used in the treatment of gastroesophageal ref lux disease as well as gastrointestinal ulcers associated with Crohn's disease.

brand name

Nexium (AstraZeneca).

Biological Activity

esomeprazole sodium (nexium) is the s-isomer of omeprazole and acts as a proton pump inhibitor and gastric antisecretory agent indicated for the short-term treatment of gastroesophageal reflux disease in patients with a history of erosive esophagitis.

Mode of action

Esomeprazole Sodium is the sodium salt of the S-isomer of omeprazole, with gastric proton pump inhibitor activity. In the acidic compartment of parietal cells, esomeprazole is protonated and converted into the active achiral sulfenamide; the active sulfenamide forms one or more covalent disulfide bonds with the proton pump hydrogen-potassium adenosine triphosphatase (H+/K+ ATPase), thereby inhibiting its activity and the parietal cell secretion of H+ ions into the gastric lumen, the final step in gastric acid production. H+/K+ ATPase is an integral membrane protein of the gastric parietal cell.