Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

risperidone

play
noun ris·per·i·done \ri-ˈsper-ə-ˌdōn\

Definition of risperidone

  1. :  an antipsychotic drug C28H27FN4O2 used especially to treat schizophrenia



Origin of risperidone

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


First Known Use: 1988


Medical Dictionary

risperidone

play
noun ris·per·i·done \ri-ˈsper-ə-ˌdōn\

Medical Definition of risperidone

  1. :  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 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.




Learn More about risperidone

  1. Medical Dictionary: Definition of "risperidone"


Seen and Heard

What made you want to look up risperidone? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

marked by propriety and good taste

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

prompt angry oily maudlin
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ