[Modification in some nasal function parameters after metacholine stimulation and pretreatment with ipratropium bromide].

Experimental research conducted on normal subjects and on perennial rhinitis sufferers demonstrates that the application of metacholine stimulates nasal secretions and that this effect is inhibited by pretreatment with ipratropium bromide. Using the Baroody et al. method, a group of 20 healthy volunteers was used to check the effect metacholine and ipratropium/metacholine had on nasal secretions.