Ltdin Tablet contains Loratadine 10mg, a second-generation antihistamine primarily indicated for the relief of symptoms associated with allergic rhinitis and chronic idiopathic urticaria. Loratadine functions as a selective peripheral H1 receptor antagonist, effectively inhibiting the action of histamine, a key mediator in allergic reactions. This results in the alleviation of symptoms such as sneezing, nasal congestion, runny nose, itchy or watery eyes, and skin hives or itching. Unlike first-generation antihistamines, Loratadine exhibits minimal penetration across the blood-brain barrier, thereby reducing the risk of sedation and central nervous system side effects. Ltdin Tablet is administered orally, typically once daily, providing 24-hour symptom relief, which enhances patient compliance. It is well-tolerated in both adults and children over two years of age, though dosage adjustments may be necessary in cases of hepatic or renal impairment. Common adverse effects are generally mild and may include headache, fatigue, or dry mouth. Ltdin Tablet should be used with caution in patients with known hypersensitivity to Loratadine or any of its excipients. It is contraindicated in individuals with severe liver impairment. Consultation with a healthcare professional is advised prior to use, especially in pregnant or breastfeeding women.