TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 560 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression REFERENCE : PHARAT Pharmazie. (VEB Verlag Volk und Gesundheit, Neue Gruenstr. 18, Berlin DDR-1020, Ger. Dem. Rep.) V.1- 1946- Volume(issue)/page/year: 46,705,1991