About omprazole capsules
Proton pump inhibitor
Used for
- Heartburn and gastro-oesophageal reflux disease
- Stomach or duodenal ulcers
- Reducing ulcer risk with certain pain medicines
- Part of treatment for Helicobacter pylori infection
Usual adult dose
Usually 20 mg once daily; dose and duration vary by condition. H. pylori treatment combines omeprazole with antibiotics.
Usual dose in children
For reflux or ulcers, usually 10–20 mg once daily for children aged 1 year or older; dosing depends on weight and diagnosis.
Common side effects
- Headache
- Abdominal pain, nausea, or diarrhoea
- Constipation or wind
- Long-term use may lower magnesium or vitamin B12
Important warnings
- Seek assessment for trouble swallowing, unexplained weight loss, vomiting blood, or black stools.
- Long-term use may increase fracture, gut infection, and nutrient-deficiency risks.
- Rarely causes serious allergic or skin reactions.
- Do not use for symptom relief to delay evaluation of persistent symptoms.
Pregnancy
Available evidence has not shown a clear increase in birth defects; use during pregnancy should be based on clinical need.
Breastfeeding
Small amounts may enter breast milk; available information suggests low risk, but clinical advice is appropriate.
Interactions
- May interact with clopidogrel and reduce its effectiveness.
- Can affect warfarin, phenytoin, and some HIV medicines.
- May alter absorption of medicines such as ketoconazole and iron salts.
- Tell clinicians about all medicines, including methotrexate and herbal products.
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 It may be incomplete or out of date.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.