Product Information

Registration Status: Active

NEXIUM MUPS TABLET 40mg is approved to be sold in Singapore with effective from 2001-04-27. It is marketed by ASTRAZENECA SINGAPORE PTE LTD, with the registration number of SIN11499P.

This product contains Esomeprazole 40mg in the form of TABLET, FILM-COATED. It is approved for ORAL use.

This product is manufactured by AstraZeneca AB in SWEDEN.

It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.



A highly effective inhibitor of gastric acid secretion used in the therapy of stomach ulcers and zollinger-ellison syndrome. The drug inhibits the H(+)-K(+)-ATPase (H(+)-K(+)-exchanging ATPase) in the proton pump of gastric parietal cells. [PubChem]


For the treatment of acid-reflux disorders (GERD), peptic ulcer disease, H. pylori eradication, and prevention of gastroinetestinal bleeds with NSAID use.

Mechanism of Action

Esomeprazole is a proton pump inhibitor that suppresses gastric acid secretion by specific inhibition of the H+/K+-ATPase in the gastric parietal cell. By acting specifically on the proton pump, Esomeprazole blocks the final step in acid production, thus reducing gastric acidity.


* 16 L [healthy volunteers]
Mainly hepatic. Esomeprazole is completely metabolized by the cytochrome P450 system via CYP2C19 and CYP3A4. Metabolism produces inactive hydroxy and desmethyl metabolites, which have no effect on gastric acid secretion. Less than 1% of the parent drug is excreted in urine.


Blurred vision, confusion, drowsiness, dry mouth, flushing headache, nausea, rapid heartbeat, sweating

Active Ingredient/Synonyms

(−)-omeprazole | (S)-(−)-omeprazole | (S)-omeprazole | Esomeprazol | Ésoméprazole | Esomeprazolum | Omeprazole S-form | Perprazole | Esomeprazole |

Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.


  1. Health Science Authority of Singapore - Reclassified POM
  2. Drugbank