Procaterol Products | Cleanchem - Procaterol is a selective beta-2 adrenergic agonist used as a bronchodilator to treat asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the smooth muscles of the airways, allowing for easier airflow into the lungs. Procaterol helps relieve symptoms like wheezing, coughing, and shortness of breath associated with asthma and COPD.