Omeprazole Drug Interactions

PPIs affect the absorption and metabolism of several important drugs.

Key Drug Interactions

→Clopidogrel: some PPIs (especially omeprazole) reduce antiplatelet effect
→Methotrexate: PPIs may increase methotrexate levels
→Atazanavir / nelfinavir: PPIs reduce absorption significantly
→Bisphosphonates: PPIs may modestly reduce absorption
→Citalopram / escitalopram: some evidence of increased QT prolongation

Alcohol Interactions

→Alcohol increases gastric acid secretion and can worsen GERD and ulcers. Minimise alcohol intake during PPI therapy.

Supplement and Food Interactions

→Magnesium supplements may be required with long-term PPI use. Calcium absorption may be slightly reduced.

Safety Note

Always tell your doctor and pharmacist about all prescription medicines, non-prescription medicines, vitamins, and herbal or dietary supplements before starting Omeprazole. Keep an up-to-date medicines list to share with all healthcare providers.

Frequently Asked Questions

Can I take Omeprazole with common over-the-counter medicines?

Some OTC medications interact with Omeprazole. NSAIDs, aspirin, antihistamines, antacids, and herbal products can all have interactions. Ask your pharmacist to check for interactions before taking any new OTC product.

Can I drink alcohol while taking Omeprazole?

Alcohol increases gastric acid secretion and can worsen GERD and ulcers. Minimise alcohol intake during PPI therapy.

More About Omeprazole

Dosage & Administration

Side Effects

Warnings & Precautions

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Medical Disclaimer: This drug reference is provided for informational purposes only and is not a substitute for professional medical advice. Always consult your physician or pharmacist before changing your medication. Information reviewed by the vHospital Editorial Team · Sources: WHO, BNF, FDA prescribing information.