Vita-Jec Vitamin B12 3000-mcg for Dogs, Cats & Horses

Prescription Item

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Size: 100-mL
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Vita-Jec B12 is approved as supplemental nutritive source of vitamin B12. Each mL of sterile aqueous solution contains 3000 mcg of B12. Approved for use in horses, dogs, and cats, this solution is available in 100, 250, and 500 mL sizes, and provides effective supplementation when normal dietary needs are not being met.


For use as a supplemental nutritive source of vitamin B12 in dogs, cats, and horses.

Possible Side Effects

Talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.

Drug & Food Interactions

Talk to your veterinarian about any other drugs your pet is taking before starting this medication.


Not for use in humans. Keep this and all medications out of the reach of children. Federal law restricts this drug to use by or on the order of a licensed veterinarian.

This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA.

  1. Prescribing Information

See all items by Vita-Jec

  • Item Number
  • Generic Name
    Vitamin B12
  • For Use With
    Dogs, Cats, & Horses
  • Common Brand Name(s)
  • Administration Form
  • Product Form
  • Health Condition
    Vitamin Deficiency
  • Drug Type


Recommended Dosage

Dogs & Cats: 0.25 to 0.5 mL. Horses: 1 to 2 mL.

Storage Instructions

Protect from light at all times. Store in a dark place at controlled room temperature between 59° - 86° F.


What is Vita-Jec B12?

An aqueous solution of B complex vitamins to provide a supplemental nutritional supply of these vitamins and complexed cobalt to cattle, sheep and swine. Approved for use in cattle, sheep and swine.

What are the benefits of Vita-Jec B12?

  • Readily available source of B vitamins

  • Contains 100mg per ml of both Thiamine (B1) and Niacin provides supplemental source of these fat-soluble vitamins when dietary content may be deficient

  • Multi-species label

  • Provides a high level of vitamin concentration per ml given

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  • 1 out of 5 stars

    Horrible service

    By PussycatMom on Sep 8, 2020

    I would never recommend Chewy Pharmacy to anyone....not only does Chewy never allow one to speak to the Chewy's Pharmacist ( which I have never heard of ... Human Pharmacies always allows one to speak to the Pharmacist) , Chewy's Pharmacy Custom Service Rep is totally clueless and unable to answer even the simplest of questions, MOST IMPORTANTLY CHEWY SENT A DEFECTIVE INJECTABLE BOTTLE THAT IS LEAKING AND STILL NOT SENT A REPLACEMENT

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