If you open loratadine syrup, you cannot drink it after one month. After opening loratadine syrup, it is recommended to tighten the bottle and keep it at room temperature for one month, do not keep it in the refrigerator freezer, and make sure to keep it under shade when storing loratadine syrup. Loratadine syrup belongs to the third generation of anti-allergy drugs, mainly used to relieve nasal congestion, runny nose, sneezing, itchy eyes and other symptoms caused by allergic rhinitis, but also for the treatment of skin allergic diseases, such as urticaria, itchy skin, allergic dermatitis, etc.. It should be noted that during the use of Loratadine Syrup, do not use other drugs with central depressant effects, such as some sedative and hypnotic drugs at the same time.