Clenbuterol hydrochloride is a β2-adrenergic agonist that is used in horses as a short-term bronchodilator. In the short-term, it is typically employed in the management of airway obstruction (eg, severe equine asthma [SEA], formerly known as recurre …

Clenbuterol is a β2-adrenergic agonist that is used in horses as a short-term bronchodilator for the management of airway obstruction and for chronic breathing ailments in horses such as Chronic Obstructive Pulmonary Disease (COPD, also known as "hea …