Influence of topical beclomethasone dipropionate suspension on human nasal mucociliary activity.

The local effect of an aqueous suspension of beclomethasone dipropionate on human nasal mucociliary clearance was studied in 14 healthy volunteers. A triple blind, randomized, placebo controlled, cross-over design was utilised. Measurements of mucociliary clearance were made before treatment, after a single dose and after one week of continuous treatment either with placebo or active substance, utilising the saccharine-dye test. No change in mucociliary clearance was found after treatment with beclomethasone dipropionate or placebo suspension.