About omeprazole
Proton pump inhibitor
Used for
- Treats stomach and intestinal ulcers and reflux disease.
- Reduces stomach acid when oral treatment is unsuitable.
- Helps prevent stress-related stomach bleeding in some hospitalized patients.
Usual adult dose
Usually 40 mg intravenously once daily; dose and duration depend on the condition.
Usual dose in children
Children may receive intravenous treatment; dose is based on age, weight, and condition.
Common side effects
- Headache
- Nausea, abdominal pain, or diarrhea
- Injection-site reactions
- Rarely, allergic reactions or liver problems
Important warnings
- Use intravenous treatment when oral medicine cannot be taken.
- Long-term use may lower magnesium or vitamin B12 levels.
- Rarely, treatment can cause severe diarrhea or kidney inflammation.
- Dose adjustment may be needed with certain liver problems.
Pregnancy
Available evidence has not shown a clear increase in birth defects; use should be based on clinical need.
Breastfeeding
Omeprazole passes into milk in small amounts; significant effects are considered unlikely.
Interactions
- Clopidogrel: omeprazole may reduce its antiplatelet effect.
- Warfarin: may alter anticoagulant effect; monitoring may be needed.
- May affect medicines such as phenytoin, diazepam, and digoxin.
- Medicines that substantially reduce stomach acid can affect absorption of some drugs.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.