title: Evaluation of a breath operated powder inhaler.
abstract: A randomized, double-blind, double-dummy crossover study on 42 asthmatics was carried out to compare the single dose effects of salbutamol administered from the widely used metered dose inhaler and a breath operated system (Diskhaler). The bronchodilator response (change in forced expiratory volume in the first second) was almost identical for the two systems. The Diskhaler system however, since it is breath operated, obviates the need for hand-breath coordination.
authors.affiliation: Allen & Hanburys Ltd, Greenford, UK.
authors.forename: G M
authors.initials: GM
authors.lastname: Pover
authors.forename: C G
authors.initials: CG
authors.lastname: Langdon
authors.forename: S R
authors.initials: SR
authors.lastname: Jones
authors.forename: C
authors.initials: C
authors.lastname: Fidler
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000420:Albuterol / Q000008:administration & dosage / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy / Q000503:physiopathology; D005069:Evaluation Studies as Topic; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008875:Middle Aged; D009330:Nebulizers and Vaporizers; D011208:Powders
chemical_list: D011208:Powders; D000420:Albuterol