Abstract
The mouse model of intraperitoneal meningococcal sepsis was used to evaluate the antiendotoxic activity of polymyxin B sulfate independent of its antibiotic effects. Administered either before or after the infective challenge therapeutic doses of polymyxin B sulfate produced small but significant increases in survival over unprotected animals. These results also suggest that endotoxin contributes to the outcome in this variety of Gram-negative infection.
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