Symptoms: Overdose may be fatal especially in infants and children in whom the main symptoms are central nervous system (CNS) stimulation and antimuscarinic effects including ataxia, excitement, hallucinations, muscle tremor, convulsions, dilated pupils, dry mouth, flushed face and hyperpyrexia. Deepening coma, cardiorespiratory collapse and death may occur within 18 hrs. In adults, the usual symptoms are CNS depression with drowsiness, coma and convulsions. Hypertension may also occur.
Treatment: Treatment is symptomatic and supportive.