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Neurological effects of glufosinate poisoning with a brief review

Department of Hygiene and Preventive Medicine, Yamagata University School of Medicine, Yamagata, 99023, Japan

Takuya Sano

Department of Neuropsychiatry, Yamagata University School of Medicine, Yamagata, 99023, Japan

Herbicides containing glufosinate ammonium are widely used in many countries including Japan. Many Japanese cases of accidental and suicidal poisoning by glufosinate have been reported since 1989. We report a case of a 64- year old man who ingested glufosinate in an attempted suicide. The patient suffered mental disturbances and hematological changes together with gastrointestinal effects shortly after ingesting the poison, and later developed generalized convulsions, impaired respiration and circulatory failure. During recovery he exhibited loss of short-term memory (retrograde and anterograde amnesia). Neurotoxicity is a characteristic of glufosinate poisoning, although the mechanism is not clear. From the analysis of clinical symptoms of previously published cases, glufosinate toxicity appears to arise both from the active ingredient and the surfactant in the formulation.

Key Words: glufosinate poisoning • neurotoxicity • surfactant active agents • consciousness disturbance • herbicide

Human & Experimental Toxicology, Vol. 17, No. 1, 35-39 (1998)
DOI: 10.1177/096032719801700106


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