[Successful therapy of salicylate poisoning using glycine and activated charcoal]

Acute intoxications with salicylates are common. In a dosage of 150-300 mg/kg they are severe, and above 500 mg/kg potentially fatal. To commit suicide 4 patients ingested 375-460 mg/kg acetylsalicylic acid; 3-8 hours after ingestion salicylate blood levels of up to 760 mg/l were observed. The patients were treated for a period of 16 hours with oral charcoal and glycine (1 g/kg initially, followed every 4 hours by 0.5 g/kg, and 8 g initially, followed by 4 g, respectively). To increase urinary pH (7-9) they received i.v. NaHCO3. Blood levels of salicylic acid including its metabolites dropped initially with a virtual half-life of 2-4 hours. 18 hours after hospital admission every patient was in good general condition; none of them required hemodialysis. The urinary excretion of total salicylate reached only 6-14% of the dose within the first 12 hours of therapy, clearly indicating the importance of combined therapy with glycine and charcoal in achieving a good clinical outcome.