title: Pharmacokinetics of a microcrystalline theophylline preparation in patients with chronic obstructive airways disease.
mesh_terms: D000368:Aged; D000402:Airway Obstruction / Q000097:blood* / Q000188:drug therapy / Q000503:physiopathology; D002908:Chronic Disease; D005541:Forced Expiratory Volume; D006207:Half-Life; D006801:Humans; D007700:Kinetics; D008297:Male; D008875:Middle Aged; D010919:Placebos; D013806:Theophylline / Q000097:blood* / Q000627:therapeutic use
chemical_list: D010919:Placebos; D013806:Theophylline