Combining-Risperidone-Quetiapine

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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
Quetiapine
Type antipsychotic
Group atypical AP
Other use moodstabilizer
links
ATC-code N05AH04
Medscape Quetiapine
PubChem 5002
PubMed Quetiapine
Drugs.com quetiapine-fumarate
Kompas (Dutch) Quetiapine
Wikipedia Quetiapine

Adding quetiapine to risperidone.

Infobord.png General information
  • Risperidone is principally metabolized by CYP2D6 to an active metabolite 9-OH-risperidone (paliperidone).
  • Quetiapine is principally metabolized by CYP3A4 to active and inactive metabolites.
Eenrichtingbord.png Start quetiapine
  • The combination of these 2 antipsychotics seems to be irrational from a pharmacotherapeutical point of view.
Letopbord.png Cave
  • Quetiapine may have additive adverse cardiovascular effects in combination with other drugs that are known to prolong the QT interval of the electrocardiogram. [7]


  1. 1.0 1.1 1.2 1.3 1.4 KNMP; Informatorium Medicamentorum 2023; Monografie "risperidon" (Dutch) Cite error: Invalid <ref> tag; name "informatorium" defined multiple times with different content
  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. NVZA; Toxicology.org; Monografie 73 (dutch)
  5. Woods SW Chlorpromazine equivalent doses for the newer atypical antipsychotics J Clin Psychiatry 2003;64:663-667
  6. Drugs.com quetiapine-fumarate
  7. Interactions between risperidone and quetiapine on drugs.com
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