Bambuterol is a long-acting bronchodilator used in the management of respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). It works as a prodrug that is converted in the body to terbutaline, which relaxes the smooth muscles of the airways and helps widen the bronchial passages, making breathing easier. Bambuterol is typically taken orally and is used for the prevention and long-term control of bronchospasm rather than for immediate relief of acute asthma attacks.