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Product Details
  • Potomac™ horse fever vaccine
  • Can be used on horses 3 months of age and older
  • Phf vaccine helps prevent equine monocytic ehrlichiosis caused by E. risticii
  • Inactivated virus
Please Note:
* Don't forget to order needles and syringes.
* Learn about our commitment to being The Pet Vaccine Experts
* Some vaccines cannot be shipped to Connecticut or Minnesota without a valid prescription. Please call a Pet Care Pro at 800-786-4751 for ordering information.
* Vaccines are non-returnable.

Sorry, needles and syringes cannot be shipped to Delaware, New York, and Miami-Dade County, FL, without a prescription.

We cannot ship needles and syringes to the US Virgin Islands.

A limit of 10 needles or syringes may be sent to Connecticut, Minnesota & New Jersey.

A limit of 100 needles or syringes may be sent to Illinois.

If you have a prescription, certificate of need or require further assistance, please call us at 800.786.4751.

The equine Potomavac™ vaccine is an injectable vaccine for horses. This Potomac horse fever vaccine aids in the prevention of Potomac Horse Fever (PHF) caused by E. risticii. This PHF vaccine can be used on horses 3 months of age and older. Inactivated virus.
Cautions: Keep out of reach of children and animals. Do not vaccinate within 21 days prior to slaughter. In rare instances, administration of vaccines may cause lethargy, fever, and inflammatory or hypersensitivity types of reactions. Treatment may include antihistamines, anti-inflammatories, and/or epinephrine. Vaccinating animals whose immune response is compromised by stress, disease, etc. may not produce the desired results.

Preservatives: Gentamicin added as a preservative.

Storage: Store in the dark. Keep refrigerated at 35° to 45°F. Do not freeze.
Instructions: Always read and follow label indications.
Shake well before use. Aseptically inject 1 mL (1 dose) intramuscularly (IM) into healthy horses 3 months of age or older.

Revaccinate with a second 1mL dose intramuscularly 3-4 weeks later.

Revaccinate annually or prior to anticipated exposure.
For horses 3 months of age and older.
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