Comparative Pharmacology
Head-to-head clinical analysis: INAPSINE versus ORAP.
Peer-Reviewed Evidence
Head-to-head clinical analysis: INAPSINE versus ORAP.
INAPSINE vs ORAP
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Butyrophenone antipsychotic; antagonizes dopamine D2 receptors in the CNS, also exhibits alpha-adrenergic blocking activity.
Orap (pimozide) is a diphenylbutylpiperidine antipsychotic that selectively blocks dopamine D2 receptors in the central nervous system, with weak antagonism at alpha1-adrenergic and H1-histamine receptors. Its anti-dyskinetic effect in Tourette syndrome may also involve blockade of calcium channels.
IM: 2.5-10 mg every 3-4 hours as needed; IV: 2.5-10 mg slow IV push (over 2-3 minutes), repeat every 30-60 minutes as needed; maximum total dose 20 mg.
Initial: 2 mg orally twice daily; maintenance: 2-10 mg twice daily. Maximum 20 mg/day.
None Documented
None Documented
Clinical Note
moderateVorapaxar + Tranilast
"Vorapaxar may increase the anticoagulant activities of Tranilast."
Clinical Note
moderateVorapaxar + Resveratrol
"Vorapaxar may increase the anticoagulant activities of Resveratrol."
Clinical Note
moderateVorapaxar + Nimesulide
"Vorapaxar may increase the anticoagulant activities of Nimesulide."
Clinical Note
moderateVorapaxar + Epoprostenol
"Vorapaxar may increase the antiplatelet activities of Epoprostenol."
Terminal elimination half-life is 10-22 hours (mean 14.5 hours) in adults; may be prolonged in elderly or patients with hepatic impairment.
Terminal elimination half-life is 20–40 hours (mean 27 hours). Steady-state achieved in 4–7 days.
Primarily renal (50-70% as unchanged drug and metabolites); biliary/fecal excretion accounts for approximately 20-30%.
Primarily hepatic metabolism; approximately 40% excreted in urine as metabolites, 15% in feces as unchanged drug and metabolites.
Category C
Category C
Antipsychotic
Antipsychotic