Haloperidol is a butyropherone derivative with antipsychotic properties that has been considered particularly effective in the management of hyperactivity, agitation and mania. Haloperidol is an effective neuroleptic and also possesses antiemetic properties. It may also exhibit hypothermic and anorexiant effects and potentiate the action of barbiturates, general anesthetics and other CNS depressant drugs. Haloperidol is a quick acting substance and has a duration of action of about 12 hours after one single administration. The optimum daily therapy consists of 2 administrations.
Adults: Schizophrenia, Psychoses, Mania and Hypomania, Mental or behavioral problems, Psychomotor agitation, Excitement, Violent or dangerously impulsive behavior, Organic brain damage.
Moderate symptomatology 1.5-3.0 mg bd or tds.
Severe symptomatology/resistant patients 3.0-5.0 mg bd or tds. The same starting doses may be employed in adolescents, who in certain cases, may require up to 30 mg or exceptionally up to 60 mg/day
In resistant schizophrenics daily dosages up to 100 mg (or rarely up to 120 mg) may be necessary to achieve an optimal response.
Once satisfactory control of symptoms has been achieved dosage, dosage should be gradually reduced to the lowest maintenance dose, often as low as 5 mg/day. Too rapid a dosage reduction should be avoided.
Restlessness or agitation in elderly: Initial dose 1.5- 3.0 mg bd or tds titrated to attain an effective maintenance dose (1.5-5.0 mg daily)
Gilles de la tourette syndrome/Severe tics/Intractable hiccup: Starting dose 1.5 mg tds adjusted according to response. A daily maintenance dose of 10 mg may be required in Gilles de la tourette syndrome.
Childhood behavioural disorder/schizophrenia: Total daily maintenance dose of 0.025-0.05 mg/kg/day. Half the total dose should be given in the morning and the other half in the evening, up to a maximum of 10 mg daily. Not recommended for parenteral use in children.
Administered intramuscularly in doses of 2 to 5 mg, is utilized for prompt control of the acutely agitated schizophrenic patient with moderately severe to very severe symptoms. Depending on the response of the patient, subsequent doses may be given, administered as often as every hour, although 4 to 8 hour intervals may be satisfactory. The maximum dose is 20 mg/day.