A review of clinical use of theophylline in acute asthma: factors influencing kinetic disposition and drug interactions.
2000
The clinical use of theophylline as a first line bronchodilator has declined during the last two decades, However, many therapeutic mechanisms for bronchial asthma have been discovered, and recent studies have suggested that theophylline therapy can play a beneficial role in the management of both chronic stable asthma and exacerbated disease treated in the emergency setting. In this article, the author describes the pharmacokinetics of theophylline and the major factors that influence the kinetics of the drug, such as physiopathological conditions and interactions with concomitantly administered drugs. Practical guidelines are then given on how to achieve optimal serum levels when planning theophylline therapy, including use of nomograms to decide loading and maintenance doses for nonsmoking adult asthmatic patients and adjustments for asthmatic patients with complications or on other drugs that may alter the kinetic disposition of theophylline.
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