Inhaled drugs in the prevention of asthma.
D000281:Administration, Intranasal; D000305:Adrenal Cortex Hormones / Q000008:administration & dosage / Q000627:therapeutic use*; D001249:Asthma / Q000517:prevention & control*; D004205:Cromolyn Sodium / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D010276:Parasympatholytics / Q000008:administration & dosage / Q000627:therapeutic use*; D013566:Sympathomimetics / Q000008:administration & dosage / Q000627:therapeutic use*
D000305:Adrenal Cortex Hormones; D010276:Parasympatholytics; D013566:Sympathomimetics; D004205:Cromolyn Sodium