Montair AB Tablet SR is a controlled-release tablet containing a fixed-dose combination of acebrophylline 200mg and montelukast 10mg. This innovative medication is designed to provide effective and sustained relief from bronchospasm and allergic rhinitis symptoms. Acebrophylline, a bronchodilator, relaxes smooth muscle in the airways, thereby increasing bronchial diameter and improving lung function. Montelukast, a leukotriene receptor antagonist, inhibits the effects of leukotrienes, which are potent bronchoconstrictors, thereby reducing inflammation and airway hyperresponsiveness. The slow-release technology in Montair AB Tablet SR ensures a consistent and prolonged release of the active ingredients, providing a 24-hour coverage of symptoms. This once-daily treatment is particularly useful for patients with chronic obstructive pulmonary disease (COPD), asthma, and allergic rhinitis, offering a convenient and effective solution for managing their respiratory and allergic symptoms.