Which of the following is a common LAMA used in the management of COPD?

Tiotropium is a commonly used long-acting muscarinic antagonist (LAMA) for the management of chronic obstructive pulmonary disease (COPD). LAMAs work by blocking the action of acetylcholine on muscarinic receptors in the airways, leading to bronchodilation and improved airflow. Tiotropium is particularly effective for patients with COPD, as it helps to reduce symptoms, improve lung function, and decrease the frequency of exacerbations.

Other medications listed do not fall under the category of LAMAs. For instance, salbutamol is a short-acting beta-agonist (SABA), used primarily for rapid relief of bronchospasm rather than long-term management. Montelukast is a leukotriene receptor antagonist, which is more often used for asthma and allergic rhinitis rather than COPD. Prednisone, a corticosteroid, is used mainly for its anti-inflammatory properties during acute exacerbations of COPD but does not function as a bronchodilator nor is it a LAMA. Each of these medications serves different roles in respiratory treatment, highlighting the distinct function of tiotropium in managing COPD specifically.