[Accidental overdose of alfatesine in a child with multiple malformations].

An overdosage of alfathesin was accidentally administered to a 4 kg infant with multiple congenital anomalies during an operation for craniosynostosis. The overdose was a consequence of a mistake in adjusting the rate of administration of a constant flow infusion pump. The total dosage corresponded to eight times the necessary dose administered over a period of 30 minutes. The only notable effect was a delayed awakening, which necessitated assisted ventilation. The high therapeutic index of alfathesin is responsible for the absence of serious consequences.