Abstract
The pharmacokinetics and urinary excretion of intravenously administered 7-(2,3-dihydroxypropyl) theophylline (dyphylline), were studied in a 37-yr-old asthmatic woman with ethylene diamine sensitivity who manifested intolerance to intravenous aminophylline on three separate occasions. In this subject, intravenously administered dyphylline was tolerated very well and was effective in the subsequent management of acute bronchospastic episodes. Dyphylline was significantly concentrated in the urine. This, coupled with its rapid clearance, suggests potential clinical application in patients with hepatic dysfunction. Though aminophylline sensitivity is rare, ethylene diamine sensitivity should be considered in untoward reactions to this drug.
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