Aminophylline
Also sold as: Phyllocontin
Prescription neededAsthma and breathing
Comes as:InjectionTablet
Also sold as: Phyllocontin
Dose is set by your doctor. It is mostly given as a slow injection or drip in hospital for severe asthma, with careful monitoring. Slow-release tablets are sometimes used at doses set by the doctor.
Your doctor may give you a different dose. Children's doses depend on weight.
Stop taking it and see a doctor straight away if you notice:
Medicines that can react with this one.
Ciprofloxacin raises theophylline levels and can cause fits and heart rhythm problems.
Erythromycin raises theophylline levels; the dose may need to be reduced.
Phenytoin lowers theophylline levels, and theophylline can lower phenytoin levels.