Does Ketoconazole Interact with Olodaterol Respimat Inhalation Spray?
Ketoconazole and Olodaterol Respimat Inhalation Spray have a moderate drug interaction according to U.S. FDA drug labeling data. Strong dual CYP and P-gp inhibitor increases maximum plasma concentrations and AUC of olodaterol 1.7-fold. The mechanism involves inhibition of cyp450 and p-gp efflux transporter. 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
- Ketoconazole Class
- Azole Antifungal
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Ketoconazole and Olodaterol Respimat Inhalation Spray occurs because inhibition of cyp450 and p-gp efflux transporter. Clinically, this means strong dual cyp and p-gp inhibitor increases maximum plasma concentrations and auc of olodaterol 1.7-fold. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.
What To Tell Your Doctor or Pharmacist
If you are taking Ketoconazole and your doctor is considering prescribing Olodaterol Respimat Inhalation Spray (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