Abstract
Plasma levels of theophylline and broncholytic activity have been studied in 12 patients with chronic obstructive pulmonary disease during prolonged oral treatment with choline theophyllinate, administered as a press-coated tablet (BrondaxinR). The plasma levels determined immediately before and 80 minutes after each dose showed very good agreement with those calculated on the basis of data from a previous single dose study. The plasma concentration and improvement in ventilatory function were closely correlated throughout the 48 hours of the study. A tendency towards further reduction of bronchial obstruction was observed during the second day, despite essentially unchanged plasma levels of theophylline. The results provide a rational basis for determination of an optimal dose schedule for oral treatment with choline theophyllinate to reduce the symptoms of obstructive bronchial disease.
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