Trimbow is a prescription medication used in the management of chronic obstructive pulmonary disease (COPD), a long-term condition that causes inflammation and damage to the lungs, leading to symptoms like difficulty breathing, cough, and mucus production. Trimbow is a combination inhaler that contains three active ingredients: beclometasone dipropionate, a corticosteroid that reduces inflammation in the lungs; formoterol fumarate, a long-acting beta2-adrenergic agonist that helps to relax the muscles in the airways, making it easier to breathe; and glycopyrronium bromide, a long-acting muscarinic antagonist that helps to improve lung function by preventing the airway muscles from tightening. This combination provides a comprehensive approach to managing COPD symptoms, improving lung function, and reducing the frequency of flare-ups. Trimbow is typically used as a maintenance treatment and is administered through inhalation, allowing the medication to act directly in the lungs.