TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 80 mg/kg TOXIC EFFECTS : Tumorigenic - facilitates action of known carcinogen REFERENCE : 85ERAY "Antibiotics: Origin, Nature, and Properties," Korzyoski, T., et al., eds., Washington, DC, American Soc. for Microbiology, 1978 Volume(issue)/page/year: 2,1354,1978