Theophylline has the potential for significant toxicity occurring with increasing serum concentrations.
Smoking and alcohol consumption can also increase clearance of theophylline.
What should I do if I forget a dose. Intravenous aminophylline was previously widely used in the management of acute exacerbations of asthma and COPD. Theophylline also binds to the adenosine A2B receptor and blocks adenosine mediated bronchoconstriction. About 6 of a theophylline dose is N-methylated to caffeine. How should this medicine be used.
Ask your doctor before use if you are taking the following medications:
If you drink alcohol, talk to your doctor.
After adjustment for the number of enhancing lesions at baseline, the difference in the risk of conversion to multiple sclerosis within 6 months after randomization was 18.
Systemic quinolones have been associated with disabling and potentially irreversible serious adverse reactions such as tendinopathy, including tendinitis and tendon rupture requiring surgical repair or resulting in prolonged disability.
Be careful if you drive or do anything that requires you to be alert. Most of the studies purporting that theophylline does not adversely affect sleep are limited by the lack of a placebo control or other methodological difficulties. There are conflicting reports concerning the potentiation of theophylline by influenza vaccine and physicians should be aware that interaction may occur resulting in increased serum theophylline levels.
Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken.