Fexocron-M Tablet is a combination medication containing Montelukast 10mg and Fexofenadine 120mg, designed to provide effective relief from allergic conditions such as allergic rhinitis and chronic urticaria. Montelukast is a leukotriene receptor antagonist that works by blocking substances called leukotrienes, which cause inflammation, swelling, and constriction of airways in the respiratory tract. Fexofenadine, on the other hand, is a second-generation antihistamine that selectively blocks peripheral H1 histamine receptors, reducing symptoms like sneezing, runny nose, itching, and watery eyes without causing significant drowsiness. The synergistic action of these two active ingredients helps in controlling allergy symptoms more comprehensively by targeting different pathways involved in allergic reactions. Fexocron-M is typically prescribed for patients suffering from seasonal allergic rhinitis, perennial allergic rhinitis, and chronic idiopathic urticaria. It is generally well-tolerated, but patients should use it under medical supervision, especially if they have a history of liver disease, kidney problems, or are on other medications. Common side effects may include headache, dizziness, or gastrointestinal discomfort. This tablet offers a convenient once-daily dosing regimen, improving patient compliance and overall management of allergic conditions.