PROPERICYAZINE

Toxicity

In milder cases of phenothiazine overdosage the patient may be agitated, delirious and confused. Frequently he is lethargic or in a comatose state. Twitching, dystonic movements or convulsions may be present and hypotension, cardiovascular collapse, arrhythmias and hypothermia might be observed.

Chemical properties

Yellow Solid

Originator

Aolept, Bayer Vital

The Uses of PROPERICYAZINE

Psychotherapeutic phenothiazine. Antipsychotic.

The Uses of PROPERICYAZINE

Spectrophotometric reagent for palladium and ruthenium.

Background

Periciazine is a phenothiazine of the piperidine group. It has been shown to reduce pathologic arousal and affective tension in some psychotic patients, while the symptoms of abnormal mental integration are relatively unaffected. It is a sedative phenothiazine with weak antipsychotic properties. It also has adrenolytic, anticholinergic, metabolic and endocrine effects and an action on the extrapyramidal system. It is used as an adjunctive medication in some psychotic patients, for the control of residual prevailing hostility, impulsiveness and aggressiveness. Pericyazine, like other phenothiazines, is presumed to act principally in the subcortical areas, by producing what has been described as a central adrenergic blockade.

Indications

For use as adjunctive medication in some psychotic patients. Propericiazine (Pericyazine)is used for the control of residual prevailing hostility, impulsiveness and aggressiveness.

Definition

ChEBI: A member of the class of phenothiazines that is 10H-phenothiazine substituted by a 3-(4-hydroxypiperidin-1-yl)propyl group at the nitrogen atom and a carbonitrile group at position 2. Periciazine is a first generation antipsychotic.

Manufacturing Process

2-Cyano-10-(3-methanesulfonyloxypropyl)phenthiazine and 4hydroxypiperidine in toluene were heated under reflux with stirring. The reaction mixture was allowed to cool and water was added. The resulting toluene solution layer was decanted and washed twice with water. The toluene solution was then stirred with 5% hydrochloric acid. The hydrochloride of the desired phenthiazine base precipitated in gummy condition in the aqueous layer. This was decanted and treated with sodium hydroxide (density 1.33). It was then extracted three times with ethyl acetate. The extracts were dried over sodium sulfate, filtered and concentrated in vacuum. A resinous product was obtained. This product was dissolved in a mixture of benzene and cyclohexane and chromatographed on a column containing alumina. The chromatographed product was eluted successively with mixtures of benzene and cyclohexane and then with benzene and finally with a mixture of benzene and ethyl acetate. The eluates were evaporated to yield a crude product. This product was recrystallised from aqueous ethanol (40% water) and yielded 2cyano-10-[3-(4-hydroxy-1-piperidyl)propyl]phenthiazine as white crystals.

Therapeutic Function

Neuroleptic

Pharmacokinetics

Pericyazine is a phenothiazine of the piperidine group. It has been shown to reduce pathologic arousal and affective tension in some psychotic patients, while the symptoms of abnormal mental integration are relatively unaffected. It is a sedative phenothiazine with weak antipsychotic properties. It also has adrenolytic, anticholinergic, metabolic and endocrine effects, and an action on the extrapyramidal system.

Safety Profile

Poison by ingestion, intraperitoneal, intravenous, and subcutaneous routes. Used as an antipsychotic agent. When heated to decomposition it emits very toxic fumes of CN-, NOx, and SOx. See also NITRILES.

Metabolism

Not Available

Purification Methods

It recrystallises from a saturated solution in cyclohexane. It is antipsychotic and is a sensitive reagent for Pd, Va, Ru, Rh and Au. [Gowda et al. Anal Chem 55 1816 1983, Anal Chim Acta 154 347 1983, Beilstein 27 III/IV 4110.]