Gastric lavage, activated charcoal and cathartics, diuresis, and charcoal hemoperfusion are used, but do not significantly improve the prognosis. Oxygen administration should be restricted as far as possible to avoid excessive superoxide formation. Administration of free-radical scavengers, radical-catabolizing enzymes or their activators such as liposomal superoxide dismutase, vitamin E, vitamin C, niacin, riboflavin, selenium, ^-acetylcysteine, desferrioxamine, clofibrate, and chlorpromazine have had some effects in animal experiments. However, the effects of these drugs on human paraquat poisoning are unclear. The results of treatment might appear in the patients in the border area of the survival curve presented by PrgudfogLeLal (197.9.)..

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