Loratadine Oral Solution is used to treat diseases such as hives. Adverse reactions such as dizziness and drowsiness should be monitored during the use of this drug. The active ingredient in Loratadine Oral Solution is Loratadine. The drug is a long-acting antihistamine drug with anti-allergic, antihistamine and anti-inflammatory effects, and is commonly used clinically in the treatment of chronic idiopathic urticaria, allergic rhinitis and other diseases. Adverse reactions such as hallucinations, dizziness, mental abnormalities such as euphoria or drowsiness, epilepsy, tachyarrhythmia, abdominal pain, nausea, vomiting, diarrhea, liver function impairment may occur after using the drug, it is recommended to stop using the drug and go to the hospital for symptomatic treatment. Drug allergy, hereditary galactose intolerance, pregnancy and lactation are prohibited to use the drug. Caution is recommended for severe renal insufficiency, history of epilepsy, and children under 12 years of age. Loratadine should be administered under the supervision of a clinician.