Melneurin (Melperone Hydrochloride)

Melperone hydrochloride is a butyrophenone antipsychotic used in the treatment of psychotic disorders.

• Schizophrenia: helps control positive symptoms such as delusions, hallucinations, and thought disorder.
• Acute psychotic episodes: reduces agitation and psychotic features during crisis stabilization.
• Schizoaffective disorder: assists in managing both mood and psychotic components of the illness.

• Melperone hydrochloride exerts its antipsychotic effect primarily by antagonizing dopamine D2 receptors in the mesolimbic pathway, thereby decreasing dopaminergic neurotransmission that is thought to underlie psychotic symptoms. It also exhibits moderate affinity for serotonin receptors, which may contribute to its overall clinical profile.

Melperone hydrochloride may cause a range of adverse reactions that vary in frequency and severity.

Common Side Effects

• Sedation: feeling unusually drowsy or sleepy.
• Orthostatic hypotension: dizziness or light‑headedness upon standing.
• Dry mouth: reduced salivation leading to discomfort.
• Constipation: slowed gastrointestinal motility.

Serious or Rare Side Effects

• Neuroleptic malignant syndrome: a life‑threatening reaction with fever and muscle rigidity.
• Tardive dyskinesia: involuntary, repetitive movements that may be irreversible.
• Seizures: heightened risk of convulsive episodes.
• Agranulocytosis: severe reduction in white blood cells.
• Myocarditis: inflammation of the heart muscle.

When prescribing Melneurin, clinicians should consider several safety factors.

• Pregnancy: safety not established; avoid unless benefits outweigh risks.
• Elderly patients: increased sensitivity to sedation and hypotension; start low and monitor.
• Renal impairment: use with caution and monitor renal function regularly.
• Hepatic impairment: dose adjustment may be required; assess liver enzymes.
• Concomitant CNS depressants: may enhance sedation and respiratory depression.
• Store at ambient temperature: keep in the original container, protect from moisture and light.

Melneurin can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

• CYP2D6 inhibitors: may increase melperone plasma concentrations.
• Other dopamine antagonists: additive extrapyramidal side effects.
• QT‑prolonging drugs: heightened risk of cardiac arrhythmias.

Moderate Interactions (Monitor Closely)

• Alcohol: may intensify central nervous system depression.
• Anticholinergic agents: can mask anticholinergic side effects of melperone.
• Antihypertensives: may potentiate orthostatic hypotension.