Drug interactions
Selumetinib + Vitamin e
Severity: Moderate
Selumetinib and Vitamin e: moderate 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
Selumetinib capsules contain vitamin E as an excipient, so the patient receives a vitamin E dose from the drug itself. When this is added to vitamin E supplements, intake may exceed recommended levels and could increase bleeding risk, particularly in patients taking anticoagulants or antiplatelet drugs.
What this interaction means in plain words
Selumetinib and Vitamin e can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Selumetinib belongs to Oncology; Vitamin e belongs to Gastrointestinal Tract.
Why it happens
Additive vitamin E exposure from the excipient plus supplements; high-dose vitamin E has antiplatelet and anti-vitamin K effects.
What to do
Avoid additional vitamin E supplements during selumetinib therapy unless clearly indicated. Monitor for bleeding and INR if the patient is on a vitamin K antagonist.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Vitamin e
- Betrixaban + Vitamin e Moderate
- Phenindione + Vitamin e Moderate
- Vitamin e + Warfarin Moderate
- Alfalfa + Vitamin e Minor
- Antithrombin alfa + Vitamin e Minor
- Antithrombin iii + Vitamin e Minor
Other interactions of Selumetinib
Frequently asked questions
Can I take Selumetinib with Vitamin e?
MediHelp rates the interaction as moderate. Selumetinib and Vitamin e can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Selumetinib capsules contain vitamin E as an excipient, so the patient receives a vitamin E dose from the drug itself. When this is added to vitamin E supplements, intake may exceed recommended levels and could increase bleeding risk, particularly in patients taking anticoagulants or antiplatelet drugs.
How serious is the interaction between Selumetinib and Vitamin e?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid additional vitamin E supplements during selumetinib therapy unless clearly indicated. Monitor for bleeding and INR if the patient is on a vitamin K antagonist.
What other medicines interact with Vitamin e?
MediHelp also lists interactions of Vitamin e with, for example, Betrixaban, Phenindione, Warfarin. The full list is on the Vitamin e page.
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