Drug interactions
Antithrombin alfa + Vitamin e
Severity: Minor
Antithrombin alfa and Vitamin e: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Antithrombin alfa is a recombinant anticoagulant, and very high doses of vitamin E may modestly impair clotting. Combined use could theoretically raise bleeding risk, but at ordinary vitamin E intakes the effect is unlikely to be meaningful.
What this interaction means in plain words
Antithrombin alfa and Vitamin e have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Theoretical additive anticoagulant effect, as high-dose vitamin E antagonizes vitamin K-dependent clotting and inhibits platelets.
What to do
Avoid megadose vitamin E while the patient is receiving antithrombin therapy. Monitor for bleeding and coagulation parameters as per routine care.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Vitamin e
- Betrixaban + Vitamin e Moderate
- Phenindione + Vitamin e Moderate
- Selumetinib + Vitamin e Moderate
- Vitamin e + Warfarin Moderate
- Alfalfa + Vitamin e Minor
- Antithrombin iii + Vitamin e Minor
Frequently asked questions
Can I take Antithrombin alfa with Vitamin e?
MediHelp rates the interaction as minor. Antithrombin alfa and Vitamin e have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Antithrombin alfa is a recombinant anticoagulant, and very high doses of vitamin E may modestly impair clotting. Combined use could theoretically raise bleeding risk, but at ordinary vitamin E intakes the effect is unlikely to be meaningful.
How serious is the interaction between Antithrombin alfa and Vitamin e?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid megadose vitamin E while the patient is receiving antithrombin therapy. Monitor for bleeding and coagulation parameters as per routine care.
What other medicines interact with Vitamin e?
MediHelp also lists interactions of Vitamin e with, for example, Betrixaban, Phenindione, Selumetinib. The full list is on the Vitamin e page.
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