An ANTICHOLINERGIC, BRONCHODILATOR drug, given by aerosol inhalation to treat ASTHMA, BRONCHITIS and RHINITIS.
n. an *antimuscarinic drug used as a bronchodilator in the treatment of chronic reversible airways obstruction (see bronchospasm) and to relieve rhinorrhoea resulting from *rhinitis. Side-effects include dry mouth and nasal dryness.