<unk>  is generally the preferred treatment for apnea of prematurity. It has fewer side effects as compared to theophylline.<unk>  improves airway function in asthma, increasing forced expiratory volume (FEV1) by 5% to 18%, with this effect lasting for up to four hours.
Caffeine citrate
Calcium chloride
Sodium thiosulfate 
Disufenton sodium
Mequitazine
Pyrovalerone
Quadrosilan
Complanine