NASIVION Drops Paediatric 0.025% 10ml contain the active ingredient xylometazoline, a decongestant used to relieve nasal congestion caused by colds, sinusitis, or allergies. It works by constricting blood vessels in the nasal passages, reducing swelling and making it easier to breathe through the nose. These drops are typically used for short-term relief and should be used as directed by a healthcare provider to avoid overuse.