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. The standard surgical rule is to stop these supplements at least one to two weeks before any planned procedure.
How we grade severity, choose what's in scope, and what we exclude.
Every call on this page is reasoned. We publish the full rubric for severity tiers, the medication inclusion logic, the evidence grades we accept, and what we deliberately leave out. About three thousand words. Worth reading once if you use this tool more than occasionally.
Read the full methodologyWant this checked across everything you take?
This page checks the pairs you enter. The personalised Distil report goes further:
- the same graded, cited interaction check across your whole stack, not just the pairs you thought to type in
- where your current routine may be leaving you short of your goals
- the evidence-backed compounds worth adding, and the ones worth dropping
It's a paid report: £79, or £49 for the first 25 customers. The interactions check is one section of it, and you can read a real one in full before you buy.
See a real sample reportSomething missing?
If a supplement or medication you take isn't in our autocomplete, tell us. We go through what people flag every week and add what's missing.