Is Echinacea Safe with Cisplatin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Advise cancer patients receiving cisplatin to avoid Echinacea supplementation without explicit oncologist guidance. Echinacea may stimulate proliferation of certain cancer cell lines, potentially reducing cisplatin efficacy. All herbal supplement use should be disclosed and reviewed by the oncology care team.
Why this interaction occurs
In vitro evidence shows Echinacea blend extracts promoted proliferation of HeLa and QBC-939 cancer cell lines, with growth-promoting effects potentially mediated by chicoric acid. This may antagonize the cytotoxic mechanisms of cisplatin in susceptible tumor types.
Evidence
Evidence level: limited.
Data source
PubMed - PMID 27114944
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 80,762 reports mentioning Cisplatin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Cisplatin + 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 Echinacea interactions → · All Cisplatin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.