title: Theophylline: primary or tertiary drug? A brief review.
mesh_terms: D001249:Asthma / Q000188:drug therapy; D002675:Child, Preschool; D004205:Cromolyn Sodium / Q000627:therapeutic use; D006801:Humans; D012640:Seizures / Q000139:chemically induced; D013806:Theophylline / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D013806:Theophylline; D004205:Cromolyn Sodium