Abstract:Fifteen asthmatic outpatients were randomly treated during two periods of 14 days each with sustained-release preparations of either enprofylline (3-propyl-xanthine) or theophylline (Theo-Dur®) in a double-blind crossover study. After 4 days of treatment the mean daily doses of enprofylline and theophylline, which were 14.1 and 16.2 mg/kg/day, produced mean plasma concentrations of 4.9 and 12.7 μg/ml, respectively. Taking into account all the parameters used to evaluate the antiasthmatic effects, the peak expi… Show more
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