to determine whether the inhibitory effect of cromolyn on sulfur dioxide-induced bronchoconstriction is dose dependent , we compared the effects of treatment with 200 mg of cromolyn , with 20 mg of cromolyn , and with placebo on the rise in specific airway resistance provoked by inhalation of serially increasing concentrations of sulfur dioxide ( 0.25 to 8.0 ppm ) in 10 asthmatic subjects .
C0086073
cromolyn
C0004096
asthmatic