Comparative bioavailability of two oral dosage forms of oxtriphylline.
D000284:Administration, Oral; D000328:Adult; D001682:Biological Availability; D002794:Choline / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000097:blood; D002986:Clinical Trials as Topic; D006801:Humans; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000097:blood; D013997:Time Factors
D013806:Theophylline; D002794:Choline