Ipratropium is the only nasally inhaled anticholinergic recommended by the American College of Chest Physicians for a cough caused by the common cold. One study showed that the nasal formulation decreases rhinorrhea and sneezing, and a Cochrane review found that ipratropium bromide nasal spray improved rhinorrhea  but  did  not  help  nasal  stuffiness ” ABFM

Intranasal zinc should not be used because it may result in the permanent loss of smell.

 

Important Links

 

Reference

Fashner J et al. Treatment of the common cold in children and adults. Am Fam Physician 2012;86(2):153-159.

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