Brandon, M L Pirbuterol vs. hydroxyzine vs. theophylline vs. placebo in the treatment of bronchial asthma. [electronic resource] - Annals of allergy Jul 1980 - 8-12 p. digital Publication Type: Journal Article ISSN: 0003-4738 Subjects--Topical Terms: AdolescentAdultAsthma--drug therapyBlood Pressure--drug effectsDouble-Blind MethodEthanolamines--adverse effectsFemaleForced Expiratory VolumeHumansHydroxyzine--adverse effectsIsoproterenol--administration & dosageMaleMaximal Midexpiratory Flow RateMiddle AgedPlacebosPulse--drug effectsRespiratory Function TestsTheophylline--adverse effects