Risperidone should be taken as prescribed and instructed, with the appropriate dosage chosen for each type of illness. Risperidone should be taken 1-2 times daily for the treatment of schizophrenia, once daily for the treatment of manic episodes in bipolar disorder, and should be halved in patients with renal and hepatic disorders when using the drug. 1. Schizophrenia: take 1 or 2 times daily. The recommended initial dose is 1 mg twice daily, then gradually begin to increase to 2 mg twice daily on day 2; If tolerated by the patient, the dose may be increased to 3mg twice daily and then maintained at that dose; further adjustments may be made if the patient develops other reactions. 2. Manic episodes of bipolar affective disorder: the starting dose is 1~2mg, taken once a day; the ideal therapeutic dose is 2~6mg, taken once a day. Taking risperidone is prone to adverse reactions such as parkinsonism, inability to sit still, tremor, dizziness, etc. Discontinuation of the drug should be considered after the occurrence of adverse reactions. It is contraindicated in patients with clinical hypersensitivity to risperidone. Psychotropic drugs must be prescribed by a licensed physician with prescriptive authority before taking the drug, and should be regularly reviewed, timely adjustment of medication, and rational use of medication under the guidance of a physician.