Once PMH SQ
Once PMH SQ Once PMH SQ

Merck Once PMH SQ is a cattle vaccine featuring avirulent live cultures of Mannheimia haemolytica and Pasteurella multocida. Formulated as a powder for solution (kit), it is designed for subcutaneous administration to cattle. Available in 20 ml and 100 ml vial sizes, this livestock health product supports efficient herd vaccination with a convenient 2 mL per dose. Ideal for producers and veterinarians building a proactive herd health program and seeking a reliable bovine vaccine.

$29.73

Once PMH SQ

By: Merck

Once PMH SQ

💊 Prescription
This product requires a valid prescription. After you place your order, we'll follow up by email to collect your veterinarian or prescription details. Note: If we don't receive a response within 1 week, we'll cancel the order and issue a full refund — just to keep things safe and compliant.
❄️ Cold Chain
❄️ This item is specially packaged to remain refrigerated during transit and is shipped only on Mondays and Tuesdays to ensure proper temperature control.
$29.73
Subtotal: $29.73
💊 Prescription
This product requires a valid prescription. After you place your order, we'll follow up by email to collect your veterinarian or prescription details. Note: If we don't receive a response within 1 week, we'll cancel the order and issue a full refund — just to keep things safe and compliant.
❄️ Cold Chain
❄️ This item is specially packaged to remain refrigerated during transit and is shipped only on Mondays and Tuesdays to ensure proper temperature control.
✓ Free shipping on orders over $100
🚚 Usually delivered in 1-5 days

Merck Once PMH SQ is a cattle vaccine featuring avirulent live cultures of Mannheimia haemolytica and Pasteurella multocida. Formulated as a powder for solution (kit), it is designed for subcutaneous administration to cattle. Available in 20 ml and 100 ml vial sizes, this livestock health product supports efficient herd vaccination with a convenient 2 mL per dose. Ideal for producers and veterinarians building a proactive herd health program and seeking a reliable bovine vaccine.

About This Item

  • Cattle vaccine containing avirulent live cultures of Mannheimia haemolytica and Pasteurella multocida for use in cattle, as directed by the product label or a veterinarian.
1 vial of 100 ml
  • Mannheimia (Pasteurella) haemolytica (live culture); Pasteurella multocida (live culture)
  • Subcutaneous

What species is Once PMH SQ for?

Once PMH SQ is approved for cattle use only.

How is Once PMH SQ administered?

It is administered subcutaneously (SQ) at 2 mL per dose, following the product label directions.

Is Once PMH SQ a live vaccine?

Yes. It contains avirulent live cultures of Mannheimia haemolytica and Pasteurella multocida.

What vial sizes are available?

Once PMH SQ is available in 20 ml and 100 ml vials.

How many doses per vial are there?

With a 2 mL dose, the 20 ml vial provides approximately 10 doses and the 100 ml vial provides approximately 50 doses.

Can I use this cattle vaccine with other livestock health products?

Consult your veterinarian for guidance on coordinating Once PMH SQ with other cattle vaccines or livestock health products within your herd health program.

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