Otrivin Nasal Drops 0.05% is used for the treatment of of colds, it contains 0.5 mg of Xylometazoline hydrochloride in each mL. Each drop delivers 0.0125 mg of Xylometazoline hydrochloride. It is designed to be applied in the nostrils, where it exerts a vasoconstricting effect thereby decongesting the mucosa of the nose and throat.