bu·ty·ro·phe·none 
(by-tĭr′ō-fə-nōn, by′tə-rō-)
(by-tĭr′ō-fə-nōn, by′tə-rō-)n.
Any of a group of antipsychotic drugs, such as haloperidol, administered in the treatment of schizophrenia and other psychiatric disorders.
[BUTYR(IC) + PHEN- + -ONE.]