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Symptoms of an overdose are unlikely due to the method of administration.
Symptoms: Somnolence, coma, extrapyramidal symptoms (movement disorders), convulsions, shock, hyperthermia or hypothermia.
ECG changes, QT prolongation, Torsade de Pointes, cardiac arrest and ventricular arrhythmias have been reported following an overdose of flupentixol by patients who are concurrently taking drugs known to affect the heart.
Treatment: Treatment is symptomatic and supportive. Gastric emptying should be carried out as soon as possible following oral ingestion, and activated charcoal may be given. Steps should be taken to support the respiratory and cardiovascular systems. Epinephrine (adrenaline) must not be used, as it may further lower the blood pressure. Convulsions can be treated with diazepam and extrapyramidal symptoms with biperidine.
