Risperidone-Chlorpromazine

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

Switch medication from Risperidone to Chlorpromazine.[4] [5]

Nietinrijdenbord.png Stop Risperidone
  • 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 Chlorpromazine
  • 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.[6]
    Switchstandaardup en down.jpg
Nietinrijdenbord.png — Risperidone
Eenrichtingbord.png — Chlorpromazine


  1. 1.0 1.1 KNMP; Informatorium Medicamentorum 2023; Monografie "risperidon" (Dutch)
  2. Woods SW; Chlorpromazine equivalent doses for the newer atypical antipsychotics J Clin Psychiatry 2003;64:663-667
  3. 3.0 3.1 The Lundbeck Institute; Psychotropics; Terminal Plasma Half-lives
  4. Switches are based on literature references on this page and expert opinions of the authors. The authors have used pharmacokinetic and receptor affinity properties to determine the switch schedules
  5. Stahl, S. M. (2013). Stahl's essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). Cambridge University Press.
  6. Stöllberger C, Huber JO, Finsterer J, Antipsychotic drugs and QT prolongation. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.
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