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Drug interactions

Digoxin + Flibanserin

Severity: Moderate

Digoxin and Flibanserin: moderate 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

Flibanserin inhibits intestinal P-glycoprotein and can increase exposure to digoxin, a narrow therapeutic index P-gp substrate. Higher digoxin levels may lead to nausea, arrhythmias and other signs of digoxin toxicity.

What this interaction means in plain words

Digoxin and Flibanserin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Digoxin belongs to Cardiovascular; Flibanserin belongs to Genitourinary.

Evidence level: Moderate

Why it happens

Flibanserin inhibits P-glycoprotein efflux, increasing digoxin absorption and reducing its clearance.

What to do

Monitor serum digoxin concentrations and clinical signs of toxicity when starting or stopping flibanserin. Reduce the digoxin dose if levels rise.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Digoxin with Flibanserin?

MediHelp rates the interaction as moderate. Digoxin and Flibanserin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Flibanserin inhibits intestinal P-glycoprotein and can increase exposure to digoxin, a narrow therapeutic index P-gp substrate. Higher digoxin levels may lead to nausea, arrhythmias and other signs of digoxin toxicity.

How serious is the interaction between Digoxin and Flibanserin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum digoxin concentrations and clinical signs of toxicity when starting or stopping flibanserin. Reduce the digoxin dose if levels rise.

What other medicines interact with Flibanserin?

MediHelp also lists interactions of Flibanserin with, for example, Atazanavir, Ceritinib, Clarithromycin. The full list is on the Flibanserin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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