About lansoprazole
Proton pump inhibitor
Used for
- Treats acid reflux and heartburn
- Heals stomach and duodenal ulcers
- Treats excess stomach acid, including Zollinger–Ellison syndrome
- Helps prevent ulcers caused by certain anti-inflammatory medicines
Usual adult dose
Usually 15–30 mg once daily; doses vary by condition.
Usual dose in children
For children aged 1 year and older, usually 15–30 mg once daily; dose depends on age and weight.
Common side effects
- Headache
- Diarrhea or constipation
- Nausea or abdominal pain
- Long-term use may lower magnesium or vitamin B12
Important warnings
- Seek assessment for difficulty swallowing, unexplained weight loss, or persistent vomiting.
- Long-term use may increase fracture, intestinal infection, or kidney problems.
- May mask symptoms of stomach cancer.
- Capsules may contain ingredients unsuitable for some people with allergies.
Pregnancy
Human safety information is limited; use during pregnancy should be based on clinical assessment.
Breastfeeding
Small amounts may enter breast milk; safety information is limited.
Interactions
- May reduce absorption of medicines needing stomach acid, such as some antifungals.
- Can interact with warfarin, methotrexate, digoxin, and some HIV medicines.
- May affect levels of tacrolimus and theophylline.
- Avoid combining with rilpivirine-containing medicines.
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 It may be incomplete or out of date.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.