Omeprazole
Also sold as omeprazole, Omeprazole, careone omeprazole
Medicine summary · from official FDA labels · Oct 19, 2026
What it’s used for
Omeprazole is a proton pump inhibitor indicated for: • Treatment in adults of duodenal ulcer ( 1. 1 ) and gastric ulcer ( 1.
How to take it
Omeprazole delayed-release capsules should be taken before eating. In the clinical trials, antacids were used concomitantly with omeprazole.
Important warnings
Symptomatic response does not preclude the presence of gastric malignancy ( 5. 1 ) Atrophic gastritis: has been noted with long-term therapy ( 5.
Common side effects
Adults: Most common adverse reactions in adults (incidence ≥ 2%) are • Headache, abdominal pain, nausea, diarrhea, vomiting, and flatulence ( 6 ) Pediatric patients (2 to 16 years of age): Safety profile similar to that in adults, except that respiratory system events and fever were the most frequently reported reactions in pediatric studies ( 8. 4 ) To report SUSPECTED ADVERSE REACTIONS, contact Apotex at 1-800-667-4708 or FDA at 1-800-FDA-1088 or www.
Interactions
7 DRUG INTERACTIONS • Atazanavir and nelfinavir: Omeprazole reduces plasma levels of atazanavir and nelfinavir.
If pregnant or breastfeeding
8.
Forms & strengths
20 MG Delayed Release Oral Capsule · 10 MG Delayed Release Oral Capsule · 40 MG Delayed Release Oral Capsule · 20 MG Disintegrating Oral Tablet · 2 MG/ML / 84 MG/ML Oral Suspension · 10 MG Oral Tablet · 20 MG Oral Tablet · 40 MG Oral Tablet · 10 MG Delayed Release Oral Tablet · 20 MG Delayed Release Oral Tablet · 40 MG Delayed Release Oral Tablet · 20 MG / 1100 MG Oral Capsule · 40 MG / 1100 MG Oral Capsule · 40 MG / 1680 MG Oral Suspension · 20 MG / 1680 MG Oral Suspension · 10 MG Oral Suspension · 2.5 MG Oral Suspension
Questions to ask your doctor or pharmacist
- Is this the right medicine for my condition, and how long should I take it?
- What side effects should I watch for, and which need urgent attention?
- Does this interact with my other medicines, supplements, or alcohol?
- What should I do if I miss a dose or take too much?