Medication Interaction Checker
Check two or more medications for known interactions. Enter drug names below — generic or brand names both work.
For informational use only. This tool is not a substitute for professional medical advice. Always consult your pharmacist or physician before changing medications.
Enter medications
1
2
Common interactions to know
Warfarin + Aspirin
Bleeding risk
MAOI + SSRI
Serotonin syndrome risk
Sildenafil + Nitrates
Severe hypotension
Digoxin + Amiodarone
Toxicity risk
Clopidogrel + Omeprazole
Reduced effectiveness
Ciprofloxacin + Antacids
Reduced absorption
Metformin + Alcohol
Lactic acidosis risk
Lisinopril + Potassium
Hyperkalemia risk
About this tool
This checker uses a curated database of clinically significant drug interactions supplemented by FDA drug label data. For a complete medication review — especially with 3+ medications — always consult a licensed pharmacist.
© 2026 NumPad.net · Free professional tools · Not financial or legal advice