Mastifen 1mg Tablet contains Ketotifen, a potent antihistamine with mast cell stabilizing properties, indicated primarily for the prevention and management of allergic conditions such as asthma, allergic rhinitis, and urticaria. Ketotifen acts by inhibiting the release of histamine and other mediators from mast cells, thereby reducing inflammation and hypersensitivity reactions. It is particularly effective in controlling bronchial asthma by decreasing bronchial hyperreactivity and preventing asthma attacks. Mastifen is administered orally at a dosage tailored to the patient’s clinical condition, typically 1mg twice daily for adults and adjusted accordingly for pediatric use. The drug exhibits a favorable safety profile, with common adverse effects including mild sedation, dry mouth, and dizziness. It is contraindicated in patients with known hypersensitivity to Ketotifen or any excipients in the formulation. Caution is advised when used concomitantly with central nervous system depressants. Mastifen 1mg Tablet offers a reliable therapeutic option for long-term management of allergic disorders, improving patient quality of life by minimizing symptoms and reducing the frequency of exacerbations. Regular monitoring and adherence to prescribed dosage are essential to optimize treatment outcomes and minimize potential side effects.