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Moderate· moderate-evidence
May be possible under supervision — talk to your prescriber or pharmacist before combining.
Red clover isoflavones may interact with tamoxifen in estrogen-dependent conditions. The clinical significance is debated.
Red clover isoflavones bind estrogen receptors and may compete with or complement tamoxifen's SERM activity.
Source: Clinical Studies · Reviewed April 2026
Red Clover + Tamoxifen: use caution. May be possible under supervision — talk to your prescriber or pharmacist before combining. Red clover isoflavones may interact with tamoxifen in estrogen-dependent conditions. The clinical significance is debated.
Red clover isoflavones bind estrogen receptors and may compete with or complement tamoxifen's SERM activity.
Do not stop either abruptly on your own. Talk to your prescriber or pharmacist promptly — bring this page to your appointment.
Educational information only — not medical advice. Always verify with a healthcare professional.