Journal
EXPERT OPINION ON PHARMACOTHERAPY
Volume -, Issue -, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14656566.2023.2266359
Keywords
Dopamine; D2; D3; cariprazine; schizophrenia; dual disorder
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The comorbidity of substance use disorder with schizophrenia significantly increases morbidity and mortality compared to schizophrenia alone. Dopaminergic dysregulation appears to be a common pathophysiological basis of this comorbidity. Cariprazine, a partial agonist of D3 and D2 dopamine receptors, shows promising results in early clinical observations for the therapy of dual disorder.
IntroductionComorbidity of substance use disorder (SUD) with schizophrenia, referred to as dual disorder (DD), significantly increases morbidity and mortality compared to schizophrenia alone. A dopaminergic dysregulation seems to be a common pathophysiological basis of the comorbidity.Areas coveredThis article reports the current evidence on the role of dopamine dysregulations in DD, the pharmacological profile of cariprazine, a partial agonist of D3 and D2 dopamine receptors, and first clinical observations that may support its usefulness in the therapy of DD. PubMed/MEDLINE was searched for the keywords 'cariprazine,' 'schizophrenia,' 'dual disorder,' 'dopamine,' and 'dopamine receptor.' Preclinical and clinical studies, and reviews published in English were retrieved.Expert opinionAlthough the management of DD remains challenging, and the evidence for pharmacologic treatments is still unsatisfactory, cariprazine may be a candidate medication in DD due to its unique mechanism of action. Preliminary clinical experiences suggest that cariprazine has both antipsychotic and anticraving properties and should be considered early in patients with DD.
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