Plasma theophylline concentrations in healthy volunteers after multiple dosing of two sustained-release preparations taken after food.
D000328:Adult; D003692:Delayed-Action Preparations; D005502:Food; D006801:Humans; D008297:Male; D013806:Theophylline / Q000008:administration & dosage / Q000097:blood*
D003692:Delayed-Action Preparations; D013806:Theophylline