Efficacy of enprofylline, a new bronchodilating xanthine, in acute asthma

Five different doses of enprofylline, a 3-propylxanthine, were compared with a standard dose of theophylline in 135 episodes of acute asthma in a double-blind study. The drugs were administered intravenously during ten minutes. Enprofylline induced dose-related bronchodilation and the 2.5 mg/kg dose produced significantly better effects than theophylline.