Thioridazine Dosage

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Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Schizophrenia

Initial dose: 50 to 100 mg orally 3 times a day.
Maintenance dose: May gradually increase to 200 to 800 mg/day in 2 to 4 divided doses.

Usual Pediatric Dose for Schizophrenia

<2 years: Do not use.

2 to 12 years:
Initial dose: 0.5 mg/kg/day in 2 to 3 divided doses.
Maintenance dose: May gradually increase up to a maximum of 3 mg/kg/day in divided doses.

13 to 18 years:
Initial dose: 50 to 100 mg orally 3 times a day.
Maintenance dose: May gradually increase to 200 to 800 mg/day in 2 to 4 divided doses.

Precautions

Due to the risk of life-threatening arrhythmias including torsades de pointes, thioridazine should be used only in patients for whom other antipsychotic drugs have not been effective or tolerable. Before initiating thioridazine, at least 2 other antipsychotics should be tried at an adequate dose and duration.

Dialysis

Hemodialysis: Not significantly removed.
Hemoperfusion: Not significantly removed.

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