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drug interaction(s) of theophylline with macrolide
Drug interactions:
- coadministration of theophylline with macrolide (erythromycin & clarithromycin) increases serum concentration of theophylline & potentiates its toxicity
- interaction of theophylline with azithromycin unclear
* macrolides seem to inhibit CYP3A4 while theophylline seems to be metabolized by CYP1A2
Management:
- select antibiotics other than macrolide for patients on theophylline
Properties
DRUGS: theophylline
macrolide
References
- Medical Knowledge Self Assessment Program (MKSAP) 19
Board Basics. An Enhancement to MKSAP19.
American College of Physicians, Philadelphia 2022