This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Risperidone is most commonly used to treat which of the following disorders? 
Select and explain. 
A. Dementia, B. Depression, C. Schizophrenia, D. Obsessive-Compulsive disorder
C: Schizophrenia
Answer: C: Schizophrenia 
Explanation: Risperidone, is an atypical 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. Ref KD Tripati 8th ed.