Neovent Salmeterol is a long-acting beta2-adrenergic agonist (LABA) medication primarily used in the management and prevention of asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the muscles in the airways, thereby opening them and making it easier to breathe. Salmeterol is often prescribed as an inhalation, providing targeted relief directly to the lungs with a mechanism designed to ensure a prolonged action, typically lasting for about 12 hours. This makes it an effective option for controlling symptoms throughout the day or night. However, it is important to note that Neovent Salmeterol is not intended for the immediate relief of acute asthma attacks or COPD exacerbations, but rather as a preventive measure when used regularly as prescribed.