Theophylline – Drug interactions
Certain drugs inhibit theophylline metabolism, thus increasing blood levels and cause toxicity:
- Ciprofloxacin
- Cimetidine
- Erythromycin
- Allopurinol
- Oral contraceptives
Some others increase theophylline metabolism, decreasing blood levels:
- Phenobarbitone
- Phenytoin
- Rifampicin
Smoking and consumption of charcoal boiled meat also increase theophylline metabolism.
