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According to the National Library of Medicine, haloperidol is "A phenyl-piperidinyl-butyrophenone that is used primarily to treat schizophrenia and other psychoses. It is also used in schizoaffective disorder, delusional disorders, ballism, and Tourette syndrome (a drug of choice) and occasionally as adjunctive therapy in mental retardation and the chorea of Huntington disease. It is a potent antiemetic and is used in the treatment of intractable hiccups."[1]


Acute agitation

Haloperidol (10 mg) and promethazine (25 mg or 50 mg) intramuscular injection, combined in the same syringe will make 91% of adults either tranquil or asleep at 15 minutes.[2] This is similar to 10 mg olanzepine intramuscularlly will make 87% of adults either tranquil or asleep at 15 minutes.[2]


Haloperidol 1 mg per day with gradual increase in dose might reduce the chance of extrapyramidal adverse drug reactions in patients treated for dementia.[3]


  1. National Library of Medicine. Haloperidol. Retrieved on 2007-11-07.
  2. 2.0 2.1 Raveendran NS, Tharyan P, Alexander J, Adams CE (2007). "Rapid tranquillisation in psychiatric emergency settings in India: pragmatic randomised controlled trial of intramuscular olanzapine versus intramuscular haloperidol plus promethazine". BMJ 335 (7625): 865. DOI:10.1136/bmj.39341.608519.BE. PMID 17954514. Research Blogging.
  3. Devanand DP, Marder K, Michaels KS, et al (1998). "A randomized, placebo-controlled dose-comparison trial of haloperidol for psychosis and disruptive behaviors in Alzheimer's disease". The American journal of psychiatry 155 (11): 1512–20. PMID 9812111[e]

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