Is Vitamin E Safe with Dabigatran?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Keep vitamin E supplementation below 200 IU/day if use is necessary while on dabigatran. Discuss all vitamin E supplement use with your physician. Dietary sources of vitamin E are generally safe. Monitor for any unusual bleeding symptoms.
Why this interaction occurs
Vitamin E at supplemental doses reduces platelet adhesion and inhibits protein kinase C-mediated platelet activation. This pharmacodynamic interaction adds a platelet-level anticoagulant effect on top of dabigatran's direct thrombin inhibition, increasing cumulative bleeding risk particularly in elderly patients.
Evidence
Evidence level: limited.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 8,321 reports mentioning Dabigatran. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Dabigatran + 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 Vitamin E interactions → · All Dabigatran interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.