Acebrophylline 200 mg (SR) is a sustained-release formulation of the bronchodilator and anti-inflammatory medication used to treat respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and other conditions involving constriction of the airways. Acebrophylline works by relaxing the muscles of the airways, making it easier to breathe. It also helps reduce inflammation in the airways. The sustained-release (SR) formulation allows for a slow and continuous release of the medication, providing long-lasting relief from symptoms like wheezing, shortness of breath, and chest tightness, and improving overall lung function.