Vilanterol is a long-acting beta-agonist (LABA) medication primarily used in the treatment of respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the muscles in the airways, making it easier to breathe. Vilanterol is often combined with other medications to enhance its effectiveness. This medication is typically administered through an inhaler, allowing for direct delivery to the lungs. It is important for patients to follow their healthcare provider's instructions regarding dosage and usage to ensure optimal results and minimize potential side effects.