Description Prestige Tetanus has been shown to be effective for the vaccination of healthy horses, cattle, swine and sheep 6 months of age or older against tetanus.PRODUCT DETAILS:Tetanus is a core vaccine, recommended by AAEP for all horses, every year1 Use annually (usually in spring) Use with pregnant mares 4-6 weeks prior to foaling1 Use with injured horses (wounds, surgery, etc.) if last dose wasn't administered within 6 months Do not vaccinate within 21 days before slaughter. 1AAEP Core Vaccine Guidelines (aaep.org)