Comparative Pharmacology
Head-to-head clinical analysis: CHLORPROMAZINE HYDROCHLORIDE INTENSOL versus MELLARIL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORPROMAZINE HYDROCHLORIDE INTENSOL versus MELLARIL.
CHLORPROMAZINE HYDROCHLORIDE INTENSOL vs MELLARIL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Chlorpromazine is a phenothiazine antipsychotic that blocks postsynaptic dopamine D2 receptors in the central nervous system, particularly in the mesolimbic and mesocortical pathways. It also exhibits antagonism at serotonin 5-HT2, histamine H1, alpha-1 adrenergic, and muscarinic receptors, contributing to its sedative, antiemetic, and hypotensive effects.
Thioridazine is a phenothiazine antipsychotic that blocks postsynaptic mesolimbic dopaminergic D1 and D2 receptors, and also blocks alpha-adrenergic receptors, histamine H1 receptors, and muscarinic M1 receptors.
Oral: 25-50 mg 2-3 times daily, up to 1000 mg/day in severe psychosis. IM: 25-50 mg every 1-4 hours until controlled, then switch to oral.
Typical adult dose: 10-25 mg orally 3 times daily. Maximum dose: 200 mg/day.
None Documented
None Documented
15-30 hours; prolonged in elderly and hepatic impairment; active metabolites (e.g., 7-hydroxychlorpromazine) have longer half-lives (up to 12-24 hours)
Terminal elimination half-life 21-24 hours; steady-state achieved within 5-7 days
Renal (70-80% as metabolites, <1% unchanged); biliary/fecal (~20-30%)
Primarily renal (70-80% as metabolites, <1% unchanged); biliary/fecal (20-30%)
Category C
Category C
Antipsychotic
Antipsychotic