.The purpose of Venphylin-SR Tablet is to treat and prevent the symptoms of bronchitis, asthma, and chronic obstructive pulmonary disease (a condition in which the airflow to the lung is obstructed). Wheezing and chest congestion are symptoms of bronchitis. Venphylin 100mg Capsule relaxes airways and clears congestion to alleviate bronchitis symptoms. Wheezing and chest congestion are symptoms of bronchitis. Venphylin-SR Tablet relaxes airways and clears congestion to alleviate bronchitis symptoms.