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Public interaction checker

Check drug interactions

Enter the medicines a person takes — one per line or separated by commas. Brand names (Coumadin, Advil), dosage suffixes (“warfarin 5mg”), and small typos are understood. The result lists documented interactions from a curated, citation-backed dataset — and clearly marks anything it could not match.

Type a brand or generic name (e.g. Lipitor, metformin) and pick from the list — it is added below.

One per line or comma-separated. Up to 40 per check. Brand names, dosage suffixes and small typos are understood.

Comma-separated. Class names work too — e.g. "penicillin" flags amoxicillin.

Free public tool · fair-use limit 30 checks/hour · queries are not stored.

What this tool is — and is not

The checker compares your list against a curated dataset of well-established drug–drug interactions (FDA labels, FDA safety communications, the ONC high-priority interaction list). It is informational, not exhaustive, and never a substitute for clinical judgment or a pharmacist review. Medicines shown as “not checked” were not matched against the dataset at all — absence of a warning is not evidence of safety.