Erdosteine is primarily used as a mucolytic agent in the treatment of respiratory disorders. It helps in breaking down and thinning mucus in the airways, making it easier to expel, which is particularly beneficial for patients with chronic obstructive pulmonary disease (COPD), bronchitis, and other conditions characterized by excessive mucus production. Additionally, it exhibits antioxidant properties, protecting lung tissue from oxidative stress and inflammation caused by free radicals. Erdosteine is also known to enhance the efficacy of antibiotics in treating respiratory infections by improving their penetration into bronchial secretions. It is commonly administered orally, making it a convenient option for long-term management of chronic respiratory conditions.