Does Theophylline Anhydrous Interact with Clarithromycin?
Theophylline Anhydrous and Clarithromycin have a unknown drug interaction according to U.S. FDA drug labeling data. 40% increase Clarithromycin Similar to erythromycin. 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
- Unknown
- Theophylline Anhydrous Class
- Methylxanthine
- Clarithromycin Class
- Macrolide Antimicrobial
- Management
- Consult your pharmacist
- Data Source
- U.S. FDA via OpenFDA
What To Tell Your Doctor or Pharmacist
If you are taking Theophylline Anhydrous and your doctor is considering prescribing Clarithromycin (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
- Never stop or change either medication without first consulting your healthcare provider