Cobalex 2000 B12 plus Selenium Injection

Cobalex 2000 B12 plus Selenium Injection Product Image

Cobalex 2000 plus Selenium injection provides vitamin B12 and selenium for treatment and control of deficiency.
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.
Selenium is required by sheep and cattle for growth, and is needed to produce a number of enzymes that are important to normal function. Selenium also appears to have a role in the resistance of animals to disease being involved in the production of antibodies and in eliminating pathogens. 

Safety Data Sheet
Cobalex plus Selenium NZ SDS

Active Constituents

  • 2 mg/mL Hydroxocobalmin (as the acetate)
  • 4 mg/mL Selenium (as sodium selenate)


For the treatment and prevention of vitamin B12 and selenium responsive conditions in lambs and calves, and adult sheep and cattle.

Withholding Periods



Sheep Lambs Cows Calves
1.0-1.5mL prelambing 0.5mL at marking or weaning 4.0-6.0mL precalving 2.0-3.0mL from 2 months of age

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

Pack Sizes

503820 500 mL