in acute experiments carried out in 12 symptom-free asthmatic children with 0.5 mg terbutaline , it was demonstrated that the improvement in respiratory function , i.e . increase in fev1 , mmef25-75 % , fvc and pef , was quick in onset , was maintained for at least 60 min and was not accompanied by effects on pulse rate .
C0004096
asthmatic
C0039542
terbutaline