Drug interactions
Ethinyl estradiol-drospirenone + Finerenone
Severity: Major
Ethinyl estradiol-drospirenone and Finerenone: major 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
Both drospirenone and finerenone are mineralocorticoid receptor antagonists and raise serum potassium, so combined use increases hyperkalemia risk, especially in patients with diabetic kidney disease. Ethinyl estradiol is a weak CYP3A4 inhibitor and may modestly increase finerenone exposure.
What this interaction means in plain words
Ethinyl estradiol-drospirenone and Finerenone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Ethinyl estradiol-drospirenone belongs to Endocrine; Finerenone belongs to Cardiovascular.
Why it happens
Additive mineralocorticoid receptor antagonism causing potassium retention, plus weak CYP3A4 inhibition by ethinyl estradiol raising finerenone levels.
What to do
Prefer a contraceptive without drospirenone in patients on finerenone. If combined, monitor serum potassium closely and adjust finerenone dosing per labeling.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Ethinyl estradiol-drospirenone
- Ethinyl estradiol-drospirenone + Fezolinetant Contraindicated
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir Contraindicated
- Ethinyl estradiol-drospirenone + Ombitasvir / paritaprevir / ritonavir and dasabuvir Contraindicated
- Ethinyl estradiol-drospirenone + Tranexamic acid Contraindicated
- Aminocaproic acid + Ethinyl estradiol-drospirenone Major
- Amobarbital + Ethinyl estradiol-drospirenone 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 Ethinyl estradiol-drospirenone with Finerenone?
MediHelp rates the interaction as major. Ethinyl estradiol-drospirenone and Finerenone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drospirenone and finerenone are mineralocorticoid receptor antagonists and raise serum potassium, so combined use increases hyperkalemia risk, especially in patients with diabetic kidney disease. Ethinyl estradiol is a weak CYP3A4 inhibitor and may modestly increase finerenone exposure.
How serious is the interaction between Ethinyl estradiol-drospirenone and Finerenone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a contraceptive without drospirenone in patients on finerenone. If combined, monitor serum potassium closely and adjust finerenone dosing per labeling.
What other medicines interact with Ethinyl estradiol-drospirenone?
MediHelp also lists interactions of Ethinyl estradiol-drospirenone with, for example, Fezolinetant, Ombitasvir / paritaprevir / ritonavir, Ombitasvir / paritaprevir / ritonavir and dasabuvir. The full list is on the Ethinyl estradiol-drospirenone page.
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