Isoprinosine hydrochloride tablets belong to antihistamines, clinically used for motion sickness, prevention of motion sickness, seasickness, etc.; used for preoperative, postoperative, obstetrics sedation and hypnosis; used for the treatment and prevention of anesthesia and postoperative sedation; allergy of skin mucous membranes; auxiliary medication for postoperative analgesia. Adverse reactions are as follows: the use of the drug can lead to agitation, hallucinations, headache, fatigue, flushing, rapid heart rate, urticaria. Note that coma, CNS depression, within 14 days of taking monoamine oxidase, and hypersensitivity to the product are contraindicated. Should not be used during pregnancy; should be used on balance by lactating women; contraindicated in children under 2 years of age. Avoid alcohol consumption during medication. Patients should use the drug under the supervision of a specialized physician and strictly follow the medical advice.