Erdotin, known generically as Erdosteine, is a mucolytic agent used primarily in the treatment of chronic obstructive pulmonary disease (COPD) and for managing symptoms of bronchitis. It works by breaking down mucus, making it easier to cough up and thereby improving airflow to the lungs. Erdotin has a unique dual action; not only does it help in thinning the mucus, but it also has antioxidant properties that can reduce inflammation in the airways. This medication is taken orally and is available in capsule or tablet form. It is often prescribed as part of a comprehensive treatment plan that may include other medications, breathing exercises, and physical therapy to help patients manage their condition more effectively.