title: Plasma theophylline concentrations following the oral administration of microcrystalline theophylline and a new sustained-release theophylline preparation to normal subjects.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D013806:Theophylline / Q000008:administration & dosage / Q000009:adverse effects / Q000097:blood*
chemical_list: D003692:Delayed-Action Preparations; D013806:Theophylline