Niacin × Anticoagulants
MINOR
Possible Evidence
Mechanism
Niacin may have mild antiplatelet effects at high doses.
Effect
Possible additive bleeding risk at very high doses
Management
Monitor INR if on warfarin with high-dose niacin. Minor concern at typical doses.
Plain Language Summary
AI-generated · Qwen 3.6 · grounded in 2 sources · methodologyThis combination is generally safe at typical doses, but it may pose a minor risk at very high doses. Taking large amounts of niacin can slightly increase the risk of bleeding when used with blood-thinning medications.
Source
Ghosh SK et al. J R Soc Med 1987
Research
Supporting Research
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Medical Disclaimer: This interaction record is for informational and educational purposes only and does not constitute medical advice. Always consult your healthcare provider or pharmacist before combining any supplement with prescription medications.