The generic name of Kerratan is Loratadine Tablets. The mechanism of action of montelukast sodium tablets and loratadine tablets are different, and the clinical efficacy is affected by various factors such as the patient’s physical condition, adherence, and severity of the disease, which makes it impossible to make a comparison. Sodium montelukast tablets inhibit the release of inflammatory mediators through the inhibition of leukotriene receptors to reduce airway hyperresponsiveness. It is clinically used to prevent asthma, bronchoconstriction and reduce the symptoms of allergic rhinitis. The use of the drug can lead to upper respiratory tract infections, allergies, anxiety, depression, palpitations and other adverse reactions. Note that it is contraindicated for those who are allergic to this product. Loratadine tablets belong to the selective peripheral H₁ receptor antagonist, can relieve various symptoms caused by allergic reactions. After the use of adverse reactions are common fatigue and drowsiness, headache, dry mouth, gastrointestinal discomfort, gastritis, rash, etc.; rare allergic reactions, palpitations, tachycardia and alopecia. Note allergic to the product is prohibited, pregnant and lactating women should be cautious. Patients should use the drug under the guidance of a professional physician and strictly comply with medical advice.