(Science: chemical) a butyrophenone with general properties similar to those of haloperidol. It is used in conjunction with an opioid analgesic such as fentanyl to maintain the patient in a state of neuroleptanalgesia in which he is calm and indifferent to his surroundings and able to cooperate with the surgeon. It is also used as a premedicant, as an antiemetic, and for the control of agitated patients in acute psychoses.
Pharmacological action: anaesthesia adjuvants, antiemetics, antipsychotic agents, butyrophenone, dopamine antagonists.
chemical name: 2H-Benzimidazol-2-one, 1-(1-(4-(4-fluorophenyl)-4-oxobutyl)-1,2,3,6-tetrahydro-4-pyridinyl)-1,3-dihydro-