Pimozide-Risperidone

Pimozide
Type Antipsychotic
Group Diphenylbutylpiperidines
links
Medscape Pimozide
PubChem 16362
PubMed Pimozide
Kompas (Dutch) Pimozide
Wikipedia Pimozide
Risperidone
Type antipsychotic
Group atypical AP
Other use moodstabilizer
links
ATC-code N05AX08
Medscape Risperidone
PubChem 5073
PubMed Risperidone
Drugs.com risperidone
Kompas (Dutch) Risperidone
Wikipedia Risperidone

Switch medication from Pimozide to Risperidone.

Nietinrijdenbord.png Stop Pimozide
  • 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 Risperidone
  • 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.[4]
    Switchstandaardup en down.jpg
Nietinrijdenbord.png — Pimozide
Eenrichtingbord.png — Risperidone


  1. 1.01.1 KNMP; Informatorium Medicamentorum 2015; Monografie "risperidon" (Dutch)
  2. Woods SW; Chlorpromazine equivalent doses for the newer atypical antipsychotics J Clin Psychiatry 2003;64:663-667
  3. 3.03.1 The Lundbeck Institute; Psychotropics; Terminal Plasma Half-lives
  4. Stöllberger C, Huber JO, Finsterer J, Antipsychotic drugs and QT prolongation. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.
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