Potomavac Horse Vaccine (5-Dose Box)

Potomavac is a specialized veterinary bacterin engineered to provide active immunization for horses and equines against Potomac Horse Fever (PHF), caused by the intracellular bacterium Neorickettsia risticii. By stimulating the animal’s immune system to produce protective circulating antibodies, this professional-grade biological preparation delivers targeted disease prophylaxis for equines residing in or traveling through endemic river valleys and pasture regions. Because immunological protection depends on precise primary vaccination series and timely booster administration, the use of Potomavac requires strict adherence to professional veterinary protocols.

What Is Potomavac Horse Vaccine?

Potomavac is a specialized veterinary biological compound formulated for parenteral administration under professional veterinary supervision.

Active Ingredients and Formulation

• Active Components: Contains chemically inactivated cultures of Neorickettsia risticii strains formulated with a safe adjuvant to enhance and prolong the immune response against Potomac Horse Fever.

• Vehicle and Presentation: Supplied in a box containing 5 single-dose vials (or multi-dose presentation equivalent to 5 doses) of sterile liquid suspension designed for intramuscular administration.

What Is Potomavac Used For?

Primary Veterinary Indications

• Potomac Horse Fever Prophylaxis: Routinely utilized by equine veterinarians and stable managers to reduce the clinical severity and incidence of equine monocytic ehrlichiosis (Potomac Horse Fever), characterized by acute enterocolitis, fever, depression, and associated laminitis.

• Endemic Region Protection: Administered proactively to horses grazing in geographic river basins or regions historically associated with high vector (aquatic insect/snail) transmission risks during spring, summer, and fall months.

Administration and Dosage Considerations

Route and Dosing

• Route of Administration: Administered exclusively via intramuscular (I.M.) injection—typically into the deep muscles of the neck—utilizing strict aseptic technique and sterile needles.

• Primary Vaccination Series: Requires a series of two initial doses administered at an interval of 3 to 4 weeks for primary immunization in un-vaccinated horses, followed by annual boosters. In high-risk endemic areas, semi-annual boosters may be recommended by your veterinarian.

• Timing of Vaccination: Administer prior to the onset of the seasonal Potomac Horse Fever risk period to allow adequate time for protective immunity to develop.

• Veterinary Guidance: Consult your attending veterinarian to establish an optimized vaccination schedule tailored to regional disease pressures and individual stable management practices.

Important Safety Information

• Contraindications: Do not vaccinate animals showing signs of acute febrile illness, severe stress, or those with a known history of hypersensitivity reactions to previous vaccinations or vaccine adjuvants.

• Side Effects and Precautions: Mild transient lethargy, decreased appetite, localized swelling, or slight soreness at the injection site can occasionally occur within 24 to 48 hours following injection. Systemic allergic reactions (anaphylaxis) are rare but require immediate veterinary intervention (epinephrine and supportive care).

• Competition Regulations: Trainers and exhibitors should schedule vaccinations at least 7 to 14 days prior to competitions or shipping to allow full immune response development and resolve any temporary post-vaccination fatigue or stiffness.

• Professional Guidance: Biological products must be handled and administered under the direct oversight of a licensed animal health professional.

Storage and Handling

• Store refrigerated at temperatures between 2°C and 8°C (35°F to 46°F). Do not freeze. Freezing destroys the adjuvant structure and ruins vaccine efficacy.

• Protect from direct sunlight and excessive heat during transport and storage.

• Agitate well immediately prior to drawing up or administering the dose.

• Keep securely out of reach of children, unauthorized individuals, and animals at all times.

Frequently Asked Questions

What is Potomavac Horse Vaccine used for?

It is a professional equine bacterin utilized to actively immunize horses against Potomac Horse Fever (PHF), reducing clinical severity and systemic complications.

How is the vaccine administered?

It is administered via intramuscular injection, requiring a two-dose initial primary series followed by annual (or semi-annual) revaccination boosters.

How should Potomavac be stored?

It must be stored refrigerated between 2°C and 8°C (35°F to 46°F). Freezing must be strictly avoided.

Order Potomavac Horse Vaccine Online

Potomavac Horse Vaccine (5-Dose Box) is available for order through our platform subject to cold-chain shipping protocols and veterinary availability. For assistance regarding stock levels, refrigerated delivery options, or ordering procedures, please contact our customer support team.