Haloperidol (Haldol)


  • Miscellaneous


  • Antipsychotic


  • Psychoses, Gilles de la Tourette syndrome, severe behavioral problems

  • Hyperactive children (short term)

  • Prolonged parenteral neuroleptic therapy for chronic schizophrenia (decanoate)


  • Severe toxic CNS depression, Parkinson’s disease

  • Comatose states from any cause


  • Pregnancy category C; has been used for hyperemesis gravidarum, chorea gravidarum, and manic depressive illness during pregnancy; excreted in breast milk; effect on nursing infant unknown, but may be of concern

  • Elderly, severe cardiac disorders, seizure disorder

  • Hepatic dysfunction, child < 3 years, alcohol withdrawal

  • Abrupt withdrawal, glaucoma

Adverse Reactions (Side Effects):

  • CNS: agitation, anxiety, catatonic-like behavioral states, confusion, depression, drowsiness, EPS (pseudoparkinsonism, akathisia, dystonia, tardive dyskinesia), euphoria, exacerbation of psychotic symptoms including hallucinations, headache, lethargy, neuroleptic malignant syndrome, restlessness, seizures, vertigo

  • CV: ECG changes, hypertension, hypotension, tachycardia

  • EENT: blurred vision, cataracts, dry eyes, glaucoma, retinopathy

  • GI: anorexia, constipation, diarrhea, dry mouth, dyspepsia, hypersalivation, nausea, vomiting

  • GU: priapism, urinary retention

  • HEME: agranulocytosis, anemia, leukocytosis, minimal decreases in red blood cell counts, transient leukopenia

  • METAB: breast engorgement, gynecomastia, hyperglycemia, hyperprolactinemia, impotence, increased libido, lactation, mastalgia, menstrual irregularities

  • RESP: bronchospasm, increased depth of respiration, laryngospasm

  • SKIN: diaphoresis, loss of hair, isolated cases of photosensitivity, maculopapular and acneiform skin reactions  


Administered orally and intramuscularly

  • Adult:            

    • Psychosis/Tourette’s syndrome: PO 0.5-5mg 2-3 times daily initially depending on severity of condition, dose is increased to desired dose, max 100mg daily; IM 2-5mg every 1-8 hours

    • Chronic schizophrenia: IM 10-15 times the individual patient’s stabilized PO dose every 4 weeks (decanoate)

  • Child 3-12 years: 

    • Psychosis: PO/IM 0.05-0.15 mg/kg/day in 2-3 divided doses

    • Tourette’s syndrome: PO 0.05-0.075 mg/kg/day in 2-3 divided doses

    • Hyperactivity: PO 0.05-0.075 mg/kg/day in 2-3 divided doses

Special considerations:

Do not mix liquid formulation with coffee or tea

Use calibrated dropper

Take with food or milk

Arise slowly from reclining position

Do not discontinue abruptly

Use a sunscreen during sun exposure to prevent burns

Take special precautions to stay cool in hot weather

Observe closely for signs of tardive dyskinesia

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