Drug interactions
Finerenone + Tamoxifen
Severity: Minor
Finerenone and Tamoxifen: 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
Tamoxifen may weakly inhibit CYP3A4, which could modestly raise finerenone exposure. Higher finerenone levels increase the risk of hyperkalemia and renal effects.
What this interaction means in plain words
Finerenone and Tamoxifen have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Finerenone belongs to Cardiovascular; Tamoxifen belongs to Endocrine.
Why it happens
Weak CYP3A4 inhibition reduces finerenone metabolism.
What to do
Monitor serum potassium and renal function after starting or changing tamoxifen. Adjust finerenone if hyperkalemia develops.
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 Tamoxifen
- Amiodarone + Tamoxifen Major
- Anastrozole + Tamoxifen Major
- Bupropion + Tamoxifen Major
- Carbamazepine + Tamoxifen Major
- Cinacalcet + Tamoxifen Major
- Dacomitinib + Tamoxifen Major
Other interactions of Finerenone
- Carbamazepine + Finerenone Contraindicated
- Clarithromycin + Finerenone Contraindicated
- Ensitrelvir + Finerenone Contraindicated
- Finerenone + Itraconazole Contraindicated
- Finerenone + Ketoconazole Contraindicated
- Finerenone + Posaconazole Contraindicated
Frequently asked questions
Can I take Finerenone with Tamoxifen?
MediHelp rates the interaction as minor. Finerenone and Tamoxifen have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tamoxifen may weakly inhibit CYP3A4, which could modestly raise finerenone exposure. Higher finerenone levels increase the risk of hyperkalemia and renal effects.
How serious is the interaction between Finerenone and Tamoxifen?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and renal function after starting or changing tamoxifen. Adjust finerenone if hyperkalemia develops.
What other medicines interact with Tamoxifen?
MediHelp also lists interactions of Tamoxifen with, for example, Amiodarone, Anastrozole, Bupropion. The full list is on the Tamoxifen page.
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