Get Instant Relief From The Misery Of Nasal Congestion All products in the Otrivine range contain a powerful decongestant agent Xylometazoline Hydrochloride to help reduce inflammation & swelling, clear blocked noses & sinuses within minutes & help to keep the nasal passages clear for up to 10 hours. How Otrivine Can Help Otrivine Adult Sinusitis Spray provide fast & effective decongestant relief, helping to keep the nasal passages free from secretions for up to 10 hours. The Xylometazoline helps to stimulate the alpha receptors in the blood vessel walls, this causes them to constrict & narrow, reducing the amount of blood flow to the affected area. This helps to slow down the amount of fluid (congestion) that is pushed out into the nasal lining, allowing you to breathe more freely throughout the day. How To Use Otrivine Otrivine Adult Sinusitis Sprays are to be used by adults & children over 12 years, 1 spray in each nostril up to 3 times a day.