Does Itraconazole Interact with Micafungin?
Itraconazole and Micafungin have a moderate drug interaction according to U.S. FDA drug labeling data. 7 DRUG INTERACTIONS Monitor for sirolimus, itraconazole or nifedipine toxicity and dosage of sirolimus, itraconazole or nifedipine should be reduced, if necessary. ( 7 ) 7.1 Effect of Other Drugs on Micafungin CYP3A4, CYP2C9 and CYP2C19 Inhibitors Co-administration of micafungin with cyclosporine, itraconazole, voriconazole and fluconazole did not alter the pharmacokinetics of micafungin. Itraconazole AUC and C max were increased by 22% and 11%, respectively. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Moderate
- Itraconazole Class
- Azole Antifungal
- Micafungin Class
- Echinocandin Antifungal
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Itraconazole and your doctor is considering prescribing Micafungin (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider