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Olanzapine-Haloperidol

Olanzapine
Type antipsychotic
Group atypical AP
Other use moodstabilizer
links
ATC-code N05AH03
Medscape Olanzapine
EMEA zyprexa
PubChem 4585
PubMed Olanzapine
Drugs.com olanzapine
Kompas (Dutch) Olanzapine
Wikipedia Olanzapine
Haloperidol
Type Antipsychotic
Group Butyrophenones
links
ATC-code N05AD01
Medscape Haloperidol
PubChem 3559
PubMed Haloperidol
Drugs.com haloperidol
Kompas (Dutch) Haloperidol
Wikipedia Haloperidol

Switch medication from Olanzapine to Haloperidol.[7] [8]

Nietinrijdenbord.png Stop Olanzapine
  • 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 Haloperidol
  • 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.[9]
    Switchstandaardup en down.jpg
Nietinrijdenbord.png — Olanzapine
Eenrichtingbord.png — Haloperidol


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 KNMP; Informatorium Medicamentorum 2023; Monografie "olanzapine" (Dutch) Cite error: Invalid <ref> tag; name "informatorium" defined multiple times with different content
  2. Farmacotherapeutisch Kompas; Toxicologie (dutch)
  3. Woods SW Chlorpromazine equivalent doses for the newer atypical antipsychotics; J Clin Psychiatry 2003;64:663-667
  4. WHO Collaborating Centre for Drug Statistics Methodology ATC=N05AD01
  5. 5.0 5.1 The Lundbeck Institute; Psychotropics; Terminal Plasma Half-lives
  6. 6.0 6.1 Farmacotherapeutisch Kompas; Inleidende Tekst Antipsychotica (dutch)
  7. 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
  8. Stahl, S. M. (2013). Stahl's essential psychopharmacology: Neuroscientific basis and practical applications (4th ed.). Cambridge University Press.
  9. Stöllberger C, Huber JO, Finsterer J, Antipsychotic drugs and QT prolongation. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.
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