G Tek LC Tablet is a combination medication containing Levocetirizine 5mg and Montelukast 10mg, designed to provide effective relief from allergic conditions such as allergic rhinitis and chronic urticaria. Levocetirizine, a third-generation antihistamine, works by selectively blocking peripheral H1 histamine receptors, thereby reducing symptoms like sneezing, runny nose, itching, and watery eyes. Montelukast, a leukotriene receptor antagonist, inhibits the action of leukotrienes, which are inflammatory chemicals responsible for bronchoconstriction, mucus production, and airway inflammation, making it particularly useful in managing asthma and allergic rhinitis. The synergistic effect of these two active ingredients helps in controlling both immediate and delayed allergic responses, offering comprehensive symptom relief. G Tek LC Tablet is typically prescribed for patients who require both antihistaminic and anti-inflammatory action to manage their allergy symptoms effectively. It is generally well-tolerated, with minimal side effects such as mild drowsiness or headache. However, it should be used under medical supervision, especially in patients with liver or kidney impairment, and is not recommended for children under two years of age. This combination therapy enhances patient compliance by reducing the need for multiple medications.