Neo-Synephrine Nasal Spray Extra Strength Phenylephrine Nasal Spray 0.5 oz Get fast-acting non-drowsy temporary relief of nasal congestion swollen nasal membranes sinus congestion and sinus pressure with NeoSynephrine Extra Strength Nasal Spray. Neo Synephrine nasal spray contains the active ingredient phenylephrine hydrochloride 1.0 percent a nasal decongestant for fast relief of nasal congestion and sinus pressure. Colds and allergies can make you miserable blocking your ability to breathe freely through your nose. Break through the congestion sinus congestion and sinus pressure for instant relief with non-drowsy NeoSynephrine nose spray. The most common causes of nasal congestion include viral upper respiratory infections (like the common cold) and allergies. Neo-Synephrine Extra Strength sinus nose spray temporarily relieves stuffiness in the nose due to common cold hay fever upper respiratory allergies sinus trouble and other nasal issues. It also temporarily relieves sinus congestion and pr