Drug interactions
Fexofenadine + Ranolazine
Severity: Minor
Fexofenadine and Ranolazine: 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
Ranolazine inhibits P-glycoprotein and may increase absorption of fexofenadine. The effect is likely small and of limited clinical significance.
What this interaction means in plain words
Fexofenadine and Ranolazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Fexofenadine belongs to Respiratory; Ranolazine belongs to Cardiovascular.
Why it happens
Inhibition of P-glycoprotein efflux of fexofenadine by ranolazine.
What to do
No dose adjustment is required; watch for increased antihistamine adverse effects only if symptoms develop.
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 Fexofenadine
- Danicopan + Fexofenadine Moderate
- Erdafitinib + Fexofenadine Moderate
- Fexofenadine + Glecaprevir / pibrentasvir Moderate
- Fexofenadine + Grapefruit Moderate
- Fexofenadine + Juice Moderate
- Acrivastine + Fexofenadine Minor
Other interactions of Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
Frequently asked questions
Can I take Fexofenadine with Ranolazine?
MediHelp rates the interaction as minor. Fexofenadine and Ranolazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ranolazine inhibits P-glycoprotein and may increase absorption of fexofenadine. The effect is likely small and of limited clinical significance.
How serious is the interaction between Fexofenadine and Ranolazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose adjustment is required; watch for increased antihistamine adverse effects only if symptoms develop.
What other medicines interact with Fexofenadine?
MediHelp also lists interactions of Fexofenadine with, for example, Danicopan, Erdafitinib, Glecaprevir / pibrentasvir. The full list is on the Fexofenadine page.
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