title: Serum theophylline concentrations in asthmatic children.
abstract: Serum theophylline concentrations measured in 25 asthmatic children for whom continual therapy had been prescribed were found to exceed 8 mcg/ml more often in those receiving sustained-release theophylline preparations than those receiving short-acting theophylline preparations.
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000188:drug therapy*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D013806:Theophylline / Q000097:blood* / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D013806:Theophylline