Bronchodilator is a substance that dilates the bronchi and bronchioles, decreasing resistance in the respiratory airway and increasing airflow to the lungs. Bronchospasm can induce or aggravate cough. Stimulation of pulmonary receptors can trigger both cough and broncho constriction, especially in individuals with effectiveness of cough in clearing secretions by increasing surface velocity of airflow during the act of coughing. They should […]