Risperdal (risperidone) is an atypical antipsychotic prescribed to treat: schizophrenia, bipolar mania, and autism. Risperdal is available as a generic drug. Initial U.S. Approval: 1993 HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information needed to use RISPERDAL Risperidone, sold under the brand name Risperdal among others, is an antipsychotic. It is used to treat schizophrenia, bipolar disorder, and irritability associated with autism. It is taken either by mouth or by injection into a muscle. The injectable version is long-acting and lasts for about two weeks. Risperidone is used to treat the symptoms of schizophrenia (a mental illness that causes disturbed or unusual thinking, loss of interest in life, and strong or inappropriate emotions) in adults and teenagers 13 years of age and older. Learn about the potential side effects of Risperdal (risperidone). Includes common and rare side effects information for consumers and healthcare professionals. Read about Risperdione, a medication that works in the brain to treat schizophrenia. 0.5 mg PO once daily initially. May administer in divided doses to increase tolerability. Adjust dose at intervals of at least 24 hours and in increments of 0.5 to 1 mg/day as tolerated to the recommended target dose of 3 mg/day. Learn about Risperdal (Risperidone) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. List of adverse effects of risperidone: Sources: Note: The percentages provided next to these adverse effects is the incidence of them according to DrugPoint. Risperdal official prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions, pharmacology and more.