A double-blind controlled evaluation of the nasal decongestant effect of Day Nurse in the common cold.

A rhinomanometric technique was used to evaluate the nasal decongestant effect of a single dose of Day Nurse over a 4-hour post-dosing period in human volunteers suffering from nasal congestion due to a common cold. A significant improvement in nasal congestion was obtained at the 1 hour, 2 hour, 3 hour and 4 hour post-dosing interval, from initial values compared to a placebo group. The study therefore demonstrated by an objective technique that Day Nurse provides relief of nasal congestion and related symptoms in cold sufferers.