Tetanus Active Disease

Intrathecal: 5,000 - 50,000 iu in AO or LS (Adult), 1,000 - 30,000 (Foal). Must remove equal amount of CSF before administering. Large doses increase risk for sub-arachnoid hemorrhage. IV or IM 5,000 - 50,000 iu for an adult horse 5,000 - 10,000 iu for a foal, followed by 2,500 iu SQ every day for 5 days (only if severe)

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