MONTELUKAST+LEVOCETIRIZINE is an anti-allergic medication which contains Levocetirizine and Montelukast. Levocetirizine is an antihistamine (anti-allergy) which blocks the effects of a chemical messenger (histamine) naturally involved in allergic reactions. Thus, it helps relieve allergy symptoms such as sneezing, running nose, watery eyes, itching, swelling, congestion, or stiffness. On the other hand, Montelukast is a leukotriene antagonist, which blocks a chemical messenger (leukotriene) and reduces inflammation and swelling in the nose and lungs, making it easy to breathe. Collectively, both of them help to improve symptoms and treat a broad range of allergic conditions, thereby minimizing symptoms like sneezing, runny nose, coughing, watery eyes etc.