Sodium chloride inhalation solution is a sterile saline (saltwater) solution used with a nebulizer to help moisten the airways, loosen mucus, and make it easier to breathe. It is commonly used in conditions such as asthma, chronic bronchitis, cystic fibrosis, and other respiratory disorders where mucus clearance is important. This solution can also be used to dilute other inhaled medications. Available in concentrations like 0.9% (normal saline), it works by hydrating the airway surfaces, which can help reduce irritation and promote productive coughing. Sodium chloride inhalation solution is typically well tolerated and used multiple times daily based on individual needs or healthcare provider instructions.