Is Spermidine Safe with Warfarin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
No dose adjustment currently recommended, but inform your anticoagulation provider. Maintain consistent INR monitoring schedule.
Why this interaction occurs
Spermidine induces autophagy and has demonstrated cardioprotective effects in human observational studies. Limited in vitro data suggests polyamines including spermidine may influence platelet function and inflammatory cascades. The clinical magnitude of any interaction with warfarin remains unclear but warrants monitoring in anticoagulated patients.
Evidence
Evidence level: limited.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 134,328 reports mentioning Warfarin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Warfarin + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Spermidine interactions → · All Warfarin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.