Comparative Pharmacology
Head-to-head clinical analysis: HALOPERIDOL INTENSOL versus PROCHLORPERAZINE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: HALOPERIDOL INTENSOL versus PROCHLORPERAZINE.
HALOPERIDOL INTENSOL vs PROCHLORPERAZINE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Haloperidol is a typical antipsychotic that primarily antagonizes dopamine D2 receptors in the central nervous system, particularly in the mesolimbic and mesocortical pathways. It also has moderate affinity for alpha-1 adrenergic receptors and low affinity for H1 histamine and muscarinic cholinergic receptors.
Prochlorperazine is a phenothiazine antipsychotic that acts as a dopamine D2 receptor antagonist in the chemoreceptor trigger zone (CTZ) and at high doses in the mesolimbic system. It also has anticholinergic and antiemetic effects.
Oral (Intensol): 0.5-5 mg twice or three times daily. Maximum: 100 mg/day.
5-10 mg IM/IV every 3-4 hours as needed; or 5-10 mg PO 3-4 times daily; or 25 mg PR twice daily. Maximum IM/IV: 40 mg/day; PO: 40 mg/day.
None Documented
None Documented
Clinical Note
moderateProchlorperazine + Fluticasone propionate
"The risk or severity of adverse effects can be increased when Prochlorperazine is combined with Fluticasone propionate."
Clinical Note
moderateProchlorperazine + Haloperidol
"The metabolism of Haloperidol can be decreased when combined with Prochlorperazine."
Clinical Note
moderateProchlorperazine + Methylphenidate
"The risk or severity of adverse effects can be increased when Prochlorperazine is combined with Methylphenidate."
Clinical Note
moderateTerminal elimination half-life is approximately 14-37 hours (average 21 hours) after oral administration; may be longer in elderly or hepatic impairment.
Terminal elimination half-life: 23-25 hours, with prolonged elimination in hepatic impairment.
Primarily hepatic metabolism with renal elimination of metabolites; about 40% excreted in urine and 15% in feces via bile.
Renal: 70-80% (as metabolites), Fecal: 20-30% (unchanged and metabolites), Biliary: 10-15% of dose excreted in bile.
Category A/B
Category A/B
Typical Antipsychotic
Typical Antipsychotic / Antiemetic
Prochlorperazine + Quinagolide
"The therapeutic efficacy of Quinagolide can be decreased when used in combination with Prochlorperazine."