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Intranasal Streptococcus Equi Vaccine

To help protect horses against strangles, look to PINNACLE® I.N. –the only two-dose, modified-live bacterial vaccine developed to help prevent strangles caused by Streptococcus equi (S. equi).

Strangles is a highly contagious upper respiratory infection most common in young horses. Strangles symptoms can include fever, difficulty swallowing, abnormal breathing, nasal discharge, swelling and/or abscesses of the lymph nodes.1 The disease can spread quickly and is easily transmitted through direct animal-to-animal contact or by objects — buckets, bridles or human hands — that have come in contact with infected horses. Your horse may be at risk for strangles if he travels to events or shows or is exposed to unfamiliar horses, such as within a boarding barn.

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    • The only two-dose modified-live vaccine developed to help prevent strangles caused by S. equi.
    • Intranasal administration helps provide a more natural immune response, stimulating innate andmucosal immunity at the site of natural infection.
    • PINNACLE I.N. utilizes a specially designed cannula that helps deliver the vaccine to the pharyngeal (throat) area.
    • Because it is given intranasally, PINNACLE I.N. avoids local injection-site reactions that can occur with parenteral S. equi vaccines.2

    Pinnacle Administration

  • Aseptically rehydrate with the entire contents of the accompanying sterile diluent. Instill the entire rehydrated vaccine into one nostril using a syringe with applicator tip. Administer a second dose two to three weeks later. Annual revaccination is recommended.

    For intranasal use only. Do not administer by any other route than intranasal.

    Always read and follow label indications.


    This product contains live bacteria and is designed for intranasal use only. Disinfect hands and equipment after use. Contamination of the user’s hands or equipment with reconstituted vaccine could lead to infections if proper disinfection practices are not followed prior to procedures that require asepsis. Injection equipment used to reconstitute or administer PINNACLE I.N. should not be reused, and should be disposed of appropriately. In case of anaphylactoid reaction, administer epinephrine. After administration, a small number of horses may experience noncontagious transitory upper respiratory signs including nasal discharge and lymphadenectasis. Purpura hemorrhagica may be seen in hypersensitive individuals following exposure to streptococcal proteins.

    Store in the dark at 2° to 7°C (35° to 45°F). AVOID FREEZING. Shake well after rehydration. Do not vaccinate within 30 days before slaughter. Use entire contents when first opened. Burn container and all unused contents.

    For veterinary use only.




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