Drug interactions
Flibanserin + Rifapentine
Severity: Major
Flibanserin and Rifapentine: major interaction.
Last updated Sources: US FDA label
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
Rifapentine induces CYP3A4 and is expected to considerably reduce flibanserin exposure and efficacy.
What this interaction means in plain words
Flibanserin and Rifapentine 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.
Flibanserin belongs to Genitourinary; Rifapentine belongs to Anti Bacterial.
Why it happens
Induction of CYP3A4 metabolism of flibanserin by rifapentine.
What to do
Avoid coadministration during rifapentine therapy and consider holding flibanserin.
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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References
Other interactions of Flibanserin
- Atazanavir + Flibanserin Contraindicated
- Ceritinib + Flibanserin Contraindicated
- Clarithromycin + Flibanserin Contraindicated
- Cobicistat + Flibanserin Contraindicated
- Conivaptan + Flibanserin Contraindicated
- Crizotinib + Flibanserin Contraindicated
Other interactions of Rifapentine
- Ledipasvir-sofosbuvir + Rifapentine Contraindicated
- Lorlatinib + Rifapentine Contraindicated
- Lurasidone + Rifapentine Contraindicated
- Ranolazine + Rifapentine Contraindicated
- Rifapentine + Sofosbuvir-velpatasvir Contraindicated
- Rifapentine + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
Frequently asked questions
Can I take Flibanserin with Rifapentine?
MediHelp rates the interaction as major. Flibanserin and Rifapentine 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. Rifapentine induces CYP3A4 and is expected to considerably reduce flibanserin exposure and efficacy.
How serious is the interaction between Flibanserin and Rifapentine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid coadministration during rifapentine therapy and consider holding flibanserin.
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.
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