ris·​per·​i·​done | \ ri-ˈsper-ə-ˌdōn How to pronounce risperidone (audio) \

Definition of risperidone

: an antipsychotic drug C28H27FN4O2 used especially to treat schizophrenia

Examples of risperidone in a Sentence

Recent Examples on the Web

Instead of confirming that risperidone is linked with birth defects, the study authors note that this is simply something that warrants further investigation. Korin Miller, SELF, "What to Know About Getting Pregnant If You Take Antipsychotics," 17 Jan. 2019 Research suggests that this is more likely to be an issue with typical antipsychotics than atypical ones, such as olanzapine, clozapine, and aripiprazole—with the exception of risperidone. Kimberly Truong, SELF, "11 Side Effects of Antipsychotics You Should Know About," 7 Dec. 2018 The second-generation drugs include olanzapine, risperidone, quetiapine, aripiprazole, ziprasidone, lurasidone, cariprazine, and paliperidone. Korin Miller, SELF, "5 Bipolar Disorder Treatments You Should Know About," 30 Nov. 2018 Twice a day, someone came by and watched him swallow four milligrams of risperidone, an antipsychotic. Zander Sherman, Esquire, "Schizophrenia Stole My Brother. This Is How I Got Him Back.," 20 Apr. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'risperidone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of risperidone

1988, in the meaning defined above

History and Etymology for risperidone

perhaps from fluor- + is- + piperidine + -one

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The first known use of risperidone was in 1988

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ris·​per·​i·​done | \ ri-ˈsper-ə-ˌdōn How to pronounce risperidone (audio) \

Medical Definition of risperidone

: an antipsychotic drug C28H27FN4O2 that is used especially to treat schizophrenia, acute manic episodes of bipolar disorder, and irritability associated with autism in children and adolescents

Note: Risperidone's exact mechanism of action is unknown, but it is noted for its affinity for certain serotonin, dopamine, alpha-adrenergic, and histamine receptors in the brain. It is marketed under the trademark Risperdal.

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