Displaying 7 results of Xylometazoline Impurities Xylometazoline is a nasal decongestant that works by constricting blood vessels in the nasal passages. However, during the manufacturing process, impurities may be introduced that could potentially affect the efficacy and safety of the product. These impurities may include residual solvents, degradation products, and other contaminants. It is important to ensure that Xylometazoline products are tested for impurities and meet strict quality control standards to ensure patient safety and effectiveness.