in a double-blind trial of the effect of inhaling three different beta-adrenergic stimulants ( isoprenaline sulphate 1,000 mug. , orciprenaline sulphate 1,500 mug. , and salbutamol 200 mug . ) and a placebo on ventilatory function in 24 patients with chronic asthma salbutamol was found to have a much longer action than isoprenaline , and it produced a slightly more intense and prolonged effect than orciprenaline .
C0282211
isoprenaline sulphate
C0022245
isoprenaline