Benadryl loratadine tablets belong to the third generation of antihistamines, which are also commonly known as anti-allergy drugs. It is mainly used to relieve nasal congestion, runny nose, sneezing and itchy eyes caused by allergic rhinitis. It can also be used to treat skin allergies such as urticaria, atopic dermatitis, eczema and itchy skin. When using loratadine tablets, care needs to be taken not to use other drugs with central depressant properties, such as sedative and hypnotic drugs, at the same time. Patients who are allergic to loratadine tablets are forbidden to use these drugs. It is also recommended to use loratadine tablets at night before going to bed to reduce the possible adverse effects such as mild dizziness, weakness and drowsiness.