title: Theophylline bioavailability in the dog.
abstract: The bioavailability of theophylline following single oral doses of a theophylline capsule, a theophylline tablet, and an aminophylline tablet in beagle dogs was compared against an intravenous standard. Plasma theophylline levels after oral and intravenous drug administration were described by the one-compartment open model. The onset of theophylline absorption from the oral products was rapid. While the theophylline tablet showed a slower absorption rate than the capsule or the aminophylline tablet, all three products appeared to be completely bioavailable.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001682:Biological Availability; D004285:Dogs; D005260:Female; D007275:Injections, Intravenous; D007700:Kinetics; D008297:Male; D013806:Theophylline / Q000378:metabolism*
chemical_list: D013806:Theophylline