Supplements and NSAIDs.
NSAIDs (ibuprofen, naproxen, diclofenac and others) are the most-used over-the-counter analgesics. They carry two long-term risks worth pairing against supplement choices: gastrointestinal (ulcer, bleeding) and renal (reduced kidney function with chronic use).
The supplement pairs that add to NSAID bleeding risk are ginkgo biloba, high-dose garlic extract, and high-dose omega-3 (above 3g combined EPA + DHA per day): the additive antiplatelet effect is mild at short-course standard NSAID use but climbs with chronic NSAID exposure or pre-surgery. Curcumin at high doses sits in the same category. Our curated rows put the usual stopping point at about two weeks before a planned procedure. That interval is a cautious operating rule rather than a figure any trial has established, so your surgical or dental team's own instruction is the one to follow.
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How the checker decides
Every result has a source
Each pair we have assessed is cited to a published study (PMID) or the British National Formulary, so you can read the source yourself.
Four kinds of answer
Severe, caution, no known interaction, and not yet assessed. A pair we have not assessed is never shown as clear.
- Severe
- Caution
- No known interaction
- Not yet assessed
Nothing in our data is not a clearance
When nothing in our data records a problem with a pair, the result says no known interaction at typical doses, which is not a clearance: your pharmacist or GP can check the pair against your full medical history.
A full supplement review, built around you, not a generic stack.
The free checker answers one interaction question at a time. A Distil report reviews the bigger picture: your goals, diet, medications, current supplements and any blood results you provide, then shows what appears worth keeping, changing, adding or leaving out.
- what your diet already covers, so you are not adding a capsule for something food is already handling
- which evidence-graded compounds are worth considering for your goals, and which were considered but left out
- what to keep, change or stop from what you already take, plus the order to introduce anything new
- how your medications and complete supplement stack fit together, with daily timing and a clear point for reassessment
The interaction check is one section of the full report. You also get the reasoning behind each recommendation and the evidence references used.
£49 until 30 June 2027 · £79 from 1 July 2027.
Something missing?
If a supplement or medication you take isn't in our autocomplete, tell us. What people flag joins the queue of what we add next.