Cobalex 2000
B12 Injection

Cobalex 2000 B12  Product Image

Cobalex 2000 injection provides vitamin B12 for treatment and control of deficiency. It provides a readily absorbed source of vitamin B12 levels in sheep and cattle. When given subcutaneously, the product is well-tolerated and non-irritant. The increased protein binding of hydroxocobalamin sustains circulating vitamin B12 levels for longer than cyanocobalamin.
Vitamin B12 is an essential component of a number of enzymes involved in normal metabolism. It is stored in the liver and is necessary for appetite, maintenance of energy, production and growth. 

Safety Data Sheet
Cobalex MSDS
Technical Note
Cobalex 2000 Tech Note

Active Constituents

  • ​2 mg/mL Hydroxocobalmin (as the acetate)


For the treatment and control of Vitamin B12 deficiency in sheep and cattle.

Withholding Periods

Meat: Zero (0) days.

Trade Advice

Export Slaughter Interval (ESI):

Zero (0) days.


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

Give by subcutaneous injection only. The frequency of dosing should be related to the severity of deficiency. Consult an animal health advisor for advice specific for your flock or herd.


This product is contraindicated for use unless cobalt deficiency is confirmed.
This product is contraindicated for use in sheep that are dehydrated or unwell.

Pack Sizes

503910 500mL