Montagin 100 ML is an oral syrup containing Montelukast, a leukotriene receptor antagonist, primarily indicated for the prophylaxis and chronic treatment of asthma. It is also effective for the symptomatic relief of seasonal and perennial allergic rhinitis in adults and pediatric patients. Montelukast functions by blocking specific substances in the body called leukotrienes, which are known to cause inflammation, narrowing, and swelling of the airways in the lungs, and contribute to allergy symptoms. Regular use of Montagin syrup helps to improve respiratory function and alleviate symptoms such as wheezing, coughing, nasal congestion, sneezing, and itching. This medication should be used strictly as prescribed by a healthcare professional.