Risperidone is practically insoluble in water, freely soluble in methylene chloride, and soluble in methanol and 0.1 N HCl. RISPERDAL® CONSTA® (risperidone) Long-Acting Injection is a combination of extended-release microspheres for injection and diluent for parenteral use. journal of applied behavior analysis 2003, 36, 245–248 number 2 (summer 2003) rate-decreasing effects of the atypical neuroleptic risperidone attenuated by conditions of reinforcement in a woman with mental retardation j. helen yoo, dean c. williams, deborah a. napolitano. Risperidone, the first drug approved for children with autism and the most widely used, improves some children’s behavior but can have severe side effects, suggests an informal analysis of the drug’s use. Long-acting injectable risperidone, a second-generation antipsychotic agent, may improve adherence to treatment and outcomes in schizophrenia, but it has not been tested in a long-term randomized. User Reviews for Risperdal. The following information is NOT intended to endorse drugs or recommend therapy. While these reviews might be helpful, they are not a substitute for the expertise, skill, knowledge and judgement of healthcare practitioners in patient care. Approved by the FDA in 1993, Risperdal (risperidone) is an atypical antipsychotic medication used to treat schizophrenia and symptoms of bipolar disorder, as well as symptoms of irritability in autistic children. A 36-year-old man was seen in the emergency department because of opioid overdose. The patient was found unresponsive and cyanotic in a park. Naloxone was administered and his mental status. Risperdal (Risperidone) is an antipsychotic drug that is primarily used to treat schizophrenia as well as bipolar disorder. In some cases it is used to help manage schizoaffective disorder as well as irritability among individuals with autism. Tetsuo Nakabayashi. MD, PhD Pharmaceuticals and Medical Devises Agency (PMDA) 第22回日本臨床精神神経薬理学会・第42回日本神経精神薬理学会合同年会 When I was younger, around 10 years old, I was prescribed risperidone because I have a very bad anxiety disorder (this was before the big lawsuit in 2012 which stated that risperidone is not and never was an anxiety drug).