Lurasitor 40/Lurasitor 80 Overdosage

Human Experience: In premarketing clinical studies, accidental or intentional overdosage of lurasidone hydrochloride was identified in one patient who ingested an estimated 560 mg of lurasidone hydrochloride. This patient recovered without sequelae. This patient resumed lurasidone hydrochloride treatment for an additional two months.
Management of Overdosage: No specific antidotes for lurasidone hydrochloride are known. In managing overdose, provide supportive care, including close medical supervision and monitoring, and consider the possibility of multiple drug involvement. If an overdose occurs, consult a Certified Poison Control Center.
Cardiovascular monitoring should commence immediately, including continuous electrocardiographic monitoring for possible arrhythmias. If antiarrhythmic therapy is administered, disopyramide, procainamide, and quinidine carry a theoretical hazard of additive QT-prolonging effects when administered in patients with an acute overdose of lurasidone hydrochloride. Similarly, the alpha-blocking properties of bretylium might be additive to those of lurasidone hydrochloride, resulting in problematic hypotension.
Hypotension and circulatory collapse should be treated with appropriate measures. Epinephrine and dopamine should not be used, or other sympathomimetics with beta-agonist activity, since beta stimulation may worsen hypotension in the setting of lurasidone hydrochloride-induced alpha blockade. In case of severe extrapyramidal symptoms, anticholinergic medication should be administered.
Gastric lavage (after intubation if patient is unconscious) and administration of activated charcoal together with a laxative should be considered.
The possibility of obtundation, seizures, or dystonic reaction of the head and neck following overdose may create a risk of aspiration with induced emesis.