Is Vitamin E high dose Safe with Doxorubicin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Do not take Vitamin E supplements exceeding 400 IU/day during anthracycline chemotherapy without explicit oncologist approval. Standard dietary intake is generally acceptable.
Why this interaction occurs
Vitamin E (tocopherol) is a potent lipid-soluble antioxidant. High doses may protect tumor cells from doxorubicin-induced lipid peroxidation and oxidative DNA damage, which are key mechanisms of anthracycline cytotoxicity. This could diminish treatment response.
Evidence
Evidence level: moderate.
Data source
PubMed: PMID 33113428, PMID 17162253
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 109,696 reports mentioning Doxorubicin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Doxorubicin + 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 high dose interactions → · All Doxorubicin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.