Last reviewed · How we verify
Esomeprazole (BQ10)
Esomeprazole inhibits the proton pump in gastric parietal cells, reducing gastric acid secretion.
Esomeprazole inhibits the proton pump in gastric parietal cells, reducing gastric acid secretion. Used for Gastroesophageal reflux disease (GERD), Peptic ulcer disease, Zollinger-Ellison syndrome.
At a glance
| Generic name | Esomeprazole (BQ10) |
|---|---|
| Also known as | Nexium (BQ10) |
| Sponsor | National Taiwan University Hospital |
| Drug class | Proton pump inhibitor (PPI) |
| Target | H+/K+-ATPase (proton pump) |
| Modality | Small molecule |
| Therapeutic area | Gastroenterology |
| Phase | FDA-approved |
Mechanism of action
Esomeprazole is the active S-enantiomer of omeprazole that irreversibly binds to and inhibits the H+/K+-ATPase enzyme (proton pump) on the secretory surface of gastric parietal cells. This blocks the final step of gastric acid production, significantly reducing intragastric acidity. It is used to treat acid-related disorders by maintaining elevated gastric pH.
Approved indications
- Gastroesophageal reflux disease (GERD)
- Peptic ulcer disease
- Zollinger-Ellison syndrome
- Prevention of NSAID-induced ulcers
Common side effects
- Headache
- Diarrhea
- Nausea
- Abdominal pain
- Constipation
Key clinical trials
Primary sources
Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.
| Source | Used for |
|---|---|
| ClinicalTrials.gov | Trial enrolment, design, endpoints, results |
Competitive intelligence
For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:
- Esomeprazole (BQ10) CI brief — competitive landscape report
- Esomeprazole (BQ10) updates RSS · CI watch RSS
- National Taiwan University Hospital portfolio CI