Cobalex® 2000 B12 Injection | Vitamin B12 for Sheep & Cattle | 500mL

What Farmco Recommends It For:

Farmco recommends Cobalex® 2000 B12 Injection for the treatment and control of vitamin B12 deficiency in sheep and cattle. It’s the go-to choice when animals in cobalt-deficient country are showing signs of poor appetite, reduced growth, or low energy — particularly around lambing and calving. Consult your animal health advisor to confirm cobalt deficiency before use.

Why It’s a Farmco Favourite:

Cobalex 2000 uses hydroxocobalamin, which binds to protein more effectively than cyanocobalamin, sustaining circulating B12 levels for longer and delivering better lasting results from each dose. It’s well-tolerated and non-irritant when given subcutaneously, making it easy to administer with minimal stress to the animal. The 60-day broached vial claim means less waste and more flexibility across your treatment program.

Long-Lasting B12 Support for Sheep and Cattle

Vitamin B12 is essential — full stop. It drives the enzymes behind normal metabolism, supports appetite, maintains energy levels, and underpins growth and production. When cobalt levels in the soil are low, livestock can’t produce enough B12, and the effects show up quickly: poor condition, slow growth, and reduced performance across the mob or herd.

Why Hydroxocobalamin Makes the Difference

Not all B12 injections are equal. Cobalex® 2000 delivers hydroxocobalamin acetate at 2mg/mL — a form of B12 with superior protein binding compared to cyanocobalamin. This means it stays in circulation longer, providing sustained support between treatments and reducing how often you need to re-dose.

When to Use Cobalex® 2000

• Pre-lambing and pre-calving to support peak production demands
• At marking or weaning for lambs
• In known cobalt-deficient areas where pasture B12 levels are inadequate
• Any time animals show signs of ill thrift, reduced appetite, or poor growth

Important: This product is contraindicated unless cobalt deficiency is confirmed. Do not use in sheep that are dehydrated or unwell.

Dosage at a Glance

Administer by subcutaneous injection only. In severely deficient areas, repeat every 2–3 months. In less deficient areas, every 5–6 months or as needed. Always consult your animal health advisor for flock- or herd-specific advice.

• Sheep: 1–1.5mL pre-lambing
• Lambs: 0.5mL at marking or weaning
• Cows: 4–6mL pre-calving
• Calves: 2–3mL from 2 months of age

Active Ingredient:
Hydroxocobalamin (as the acetate) 2mg/mL

Registered by Zoetis Australia. Poisons Schedule: Nil.