Visteon is the trade name and Risperdal Tablets is the generic name. The duration of the medication is related to the patient’s condition and other factors, and some patients take it for 1~2 months. Risperidone tablets are mainly used for the treatment of schizophrenia, can reduce the emotional symptoms associated with schizophrenia; also can treat manic episodes of bipolar disorder. How long to take the drug can not be clearly judged, mainly based on the patient’s condition and physical fitness and other factors to decide, clinically, some patients take the drug time in about 1~2 months. Common adverse reactions to risperidone tablets include: Parkinson’s disease, inability to sit still, dystonia, muscle tremor, sedation, dizziness, anxiety, blurred vision, nausea and vomiting, epigastric pain, gastric upset, dyspepsia, diarrhea, increased salivary secretion, constipation, dry mouth, increased appetite, weight gain, tiredness and fatigue, skin rash, nasal congestion, upper respiratory tract infections, nasopharyngitis, sore throat, and so on. In addition, it is contraindicated in patients with known hypersensitivity to risperidone, paliperidone or excipients contained in this drug. There is insufficient clinical data on the use of the drug in pregnant women and lactating women, so pregnant women need to weigh the pros and cons and use with caution, lactating women should stop breastfeeding. If you need to use risperidone tablets, please consult a professional doctor, follow the doctor’s instructions for standardized treatment, do not blindly use their own medicine.