adult asthmatic patients who demonstrated greater than or equal to 20 % improvement in fev1 after inhalation of aerosolized isoproterenol or its equivalent and greater than or equal to 20 % reduction in fev1 after a graded treadmill exercise received theophylline ( 3 , 6 mg/kg , every 6 h ) for 4 days .
C0004096
asthmatic
C0039771
theophylline