RESUMEN
We reported four cases of agricultural chemicals poisoning treated in our hospital during the past two years. These comprised two Paraquat poisoning and two Sumition poisoning cases. One Paraquat poisoned patient and one Sumition poisoned patient died of respiratory failure. The survivor of Paraquat poisoning had drank more Paraquat solutions than the dead case. However, the patient vomitted many times, and received medical treatment promptly, including gastric lavage, hemodialysis, and hemoperfusion.<BR>While on the other hand, it took a long time before starting of hemodialysis and hemoper-fusion on the dead case of Sumition poisoning. Because the poison was unknown when the patient was sent to our hospital. Our experience suggesuted that every time we examine a case of agricultural chemical poisoning, we have to treat a patient intensively from the beginning.