Chlorpromazine-Pimozide

Chlorpromazine
Type Antipsychotic
Group Phenothiazines
links
Medscape Chlorpromazine
PubChem 2726
PubMed Chlorpromazine
Kompas (Dutch) Chlorpromazine
Wikipedia Chlorpromazine
Pimozide
Type Antipsychotic
Group Diphenylbutylpiperidines
links
Medscape Pimozide
PubChem 16362
PubMed Pimozide
Kompas (Dutch) Pimozide
Wikipedia Pimozide

Switch medication from Chlorpromazine to Pimozide.

Nietinrijdenbord.png Stop Chlorpromazine
  • Day 1-4: approx. 75% of initial dose
  • Day 5-8: approx. 50% of initial dose
  • Day 9-12: approx. 25% of initial dose
  • Day 13: stop
Eenrichtingbord.png Start Pimozide
  • Day 1-4: approx. 25% of target dose
  • Day 5-8: approx. 50% of target dose
  • Day 9-12: approx. 75% of target dose
  • Day 13: target dose
Infobord.png More information
  • During this switch you could monitor ECG, especially in patients prone to QT-conduction problems.
  • There is a possibility of QT interval prolongation.[1]
    Switchstandaardup en down.jpg
Nietinrijdenbord.png — Chlorpromazine
Eenrichtingbord.png — Pimozide


  1. Stöllberger C, Huber JO, Finsterer J, Antipsychotic drugs and QT prolongation. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.
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