Answer
Important examples include clarithromycin, erythromycin and ciprofloxacin, which may increase toxicity risk, and rifampicin, which may lower theophylline levels.
Sources for this answer
- Aminophylline hydrate 25mg/ml Solution for injection — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.