Does Naloxegol Oxalate Interact with Erythromycin?
Naloxegol Oxalate and Erythromycin have a major drug interaction according to U.S. FDA drug labeling data. 7 DRUG INTERACTIONS Moderate CYP3A4 inhibitors (e.g., diltiazem, erythromycin, verapamil) : Increased naloxegol concentrations; avoid concomitant use; if unavoidable, reduce dosage to 12.5 mg once daily and monitor for adverse reactions. Moderate CYP3A4 inhibitors (e.g., diltiazem, erythromycin, verapamil) Avoid use with moderate CYP3A4 inhibitors; if unavoidable, decrease the dosage of MOVANTIK to 12.5 mg once daily and monitor for adverse reactions [see Dosage and Administration (2.4) ] . 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
- Major
- Erythromycin Class
- Macrolide
- Management
- Close medical supervision required
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Naloxegol Oxalate and your doctor is considering prescribing Erythromycin (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 how frequently you should be monitored while these are co-prescribed
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider