indication

For the treatment of disorganized and psychotic thinking. Also used to help treat false perceptions (e.g. hallucinations or delusions.)

pharmacology

Acetophenzine is a phenothiazine antipsychotic intended for the management of schizophrenia and other psychotic disorders.

mechanism of action

Acetophenazine blocks postsynaptic mesolimbic dopaminergic D1 and D2 receptors in the brain; depresses the release of hypothalamic and hypophyseal hormones and is believed to depress the reticular activating system thus affecting basal metabolism, body temperature, wakefulness, vasomotor tone, and emesis.

drug interactions

Bromocriptine: The phenothiazine decreases the effect of bromocriptine

Cisapride: Increased risk of cardiotoxicity and arrhythmias

Dexfenfluramine: Decreased anorexic effect, may increase psychotic symptoms

Diethylpropion: Decreased anorexic effect, may increase psychotic symptoms

Fenfluramine: Decreased anorexic effect, may increase psychotic symptoms

Guanethidine: Acetophenazine may decrease the effect of guanethidine.

Mazindol: Decreased anorexic effect, may increase psychotic symptoms

Phentermine: Decreased anorexic effect, may increase psychotic symptoms

Phenylpropanolamine: Decreased anorexic effect, may increase psychotic symptoms

Tacrine: The therapeutic effects of the central acetylcholinesterase inhibitor (AChEI), Tacrine, and/or the anticholinergic/antipsychotic, Acetophenazine, may be reduced due to antagonism. This interaction may be beneficial when the anticholinergic action is a side effect. AChEIs may also augment the central neurotoxic effect of antipsychotics. Monitor for extrapyramidal symptoms and decreased efficacy of both agents.

Terfenadine: Increased risk of cardiotoxicity and arrhythmias

Tetrabenazine: May cause dopamine deficiency. Monitor for Tetrabenazine adverse effects.

Trimethobenzamide: Trimethobenzamide and Acetophenazine, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.

Triprolidine: The antihistamine, Triprolidine, may increase the arrhythmogenic effect of the phenothiazine, Acetophenazine. Monitor for symptoms of ventricular arrhythmias. Additive anticholinergic and CNS depressant effects may also occur. Monitor for enhanced anticholinergic and CNS depressant effects.

Trospium: Trospium and Acetophenazine, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.