Supplement–Drug Interaction Checker
Add your medications and supplements to explore each combination.
Medications
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Supplements
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Add at least one of each. This tool checks supplement–medication combinations; it does not assess drug–drug or supplement–supplement interactions.
About this checker and its coverage
Brand names are resolved to their listed active ingredients. Your selected supplement name stays in your list and results. Distinct preparations remain separate choices. Similar-spelling suggestions require your explicit selection. A matching name does not establish that a product, formulation or dose has been reviewed.
4,449 published statements cover 3,385 exact combinations in the interaction dataset. 2,464 additional records are held for pharmacist review; their wording is not included. Some combinations contain both published and held records.
Dataset snapshot: 2026-09-10. Supporting citations and clinical review are not recorded for its statements. Separate source-backed research summaries remain available for 1161 combinations.
This checker includes publicly released research summaries. Clinical review is not yet recorded for those summaries. The searchable name catalogue is wider than the available evidence, and name availability does not establish suitability for oral use.
Research dates appear with source-backed findings. This is a dated research collection, not continuous monitoring. Evidence about one preparation or medication is not automatically applied to another.
Your selections are sent to the website to process this check. We do not save your list to your account or browser storage. Opening a new checker page starts a new list.
Information, not medical advice.