Drug interactions
Ranolazine + Rifapentine
Severity: Contraindicated
Ranolazine and Rifapentine: contraindicated 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
Rifapentine is a strong CYP3A4 inducer and is expected to markedly lower ranolazine concentrations, causing loss of antianginal efficacy. Ranolazine labeling contraindicates CYP3A inducers.
What this interaction means in plain words
Ranolazine and Rifapentine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Ranolazine belongs to Cardiovascular; Rifapentine belongs to Anti Bacterial.
Why it happens
Strong induction of CYP3A4 (and P-gp) increases ranolazine clearance.
What to do
Do not co-administer. Use an alternative antianginal during and shortly after rifapentine therapy.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
Other interactions of Rifapentine
- Ledipasvir-sofosbuvir + Rifapentine Contraindicated
- Lorlatinib + Rifapentine Contraindicated
- Lurasidone + Rifapentine Contraindicated
- Rifapentine + Sofosbuvir-velpatasvir Contraindicated
- Rifapentine + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Abiraterone + Rifapentine Major
Frequently asked questions
Can I take Ranolazine with Rifapentine?
MediHelp rates the interaction as contraindicated. Ranolazine and Rifapentine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Rifapentine is a strong CYP3A4 inducer and is expected to markedly lower ranolazine concentrations, causing loss of antianginal efficacy. Ranolazine labeling contraindicates CYP3A inducers.
How serious is the interaction between Ranolazine and Rifapentine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not co-administer. Use an alternative antianginal during and shortly after rifapentine therapy.
What other medicines interact with Ranolazine?
MediHelp also lists interactions of Ranolazine with, for example, Adagrasib, Amobarbital, Apalutamide. The full list is on the Ranolazine page.
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