title: Effects of albuterol (salbutamol) on esophageal motility and gastroesophageal reflux in healthy volunteers.
abstract: Orally or intravenously administered beta 2-adrenergic drugs have been found to inhibit esophageal motor function. Since inhalation of these drugs results in less systemic side effects, the present double-blind study was designed to investigate the influence of inhalation of the beta 2-adrenergic agonist albuterol (salbutamol) on esophageal motor function and gastroesophageal reflux in ten healthy volunteers. Esophageal motor function was recorded using a pneumohydraulically perfused multilumen manometry tube. Twenty-four-hour pH profiles were measured while the volunteers were ambulatory using a combined glass electrode connected to a portable recorder. Inhalation decreased neither lower esophageal sphincter pressure nor esophageal peristaltic amplitudes. Gastroesophageal reflux was similar on both occasions during inhalation of albuterol (3.1% [range, 1.0% to 25.5%] median upright time, with esophageal pH less than 4; and 0.1% [range, 0.0% to 10.7%] supine time) and during placebo treatment (3.6% [range, 1.6% to 19.8%] upright and 0.0% [range, 0.0% to 2.5%] supine time). Our data support the study of inhalation of beta 2-adrenergic drugs in asthmatic patients with accompanying gastroesophageal reflux.
authors.affiliation: Medizinische Klinik Innenstadt, University of Munich, West Germany.
authors.forename: N E
authors.initials: NE
authors.lastname: Schindlbeck
authors.forename: C
authors.initials: C
authors.lastname: Heinrich
authors.forename: R M
authors.initials: RM
authors.lastname: Huber
authors.forename: S A
authors.initials: SA
authors.lastname: Müller-Lissner
mesh_terms: D000280:Administration, Inhalation; D000328:Adult; D000420:Albuterol / Q000494:pharmacology* / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy; D004311:Double-Blind Method; D004947:Esophagus / Q000187:drug effects* / Q000502:physiology; D005260:Female; D005764:Gastroesophageal Reflux / Q000503:physiopathology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008365:Manometry
chemical_list: D000420:Albuterol