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Side effects of B12 deficiency can include decreased cognitive function, fatigue, lethargy, feeling faint, depression or irritability, headache, balance issues and more

Your pet's veterinarian will provide directions for use

If you're unsure how your body might respond to a vitamin B12 shot, reviewing these FAQs can help clarify how the treatment works

The dose is given intramuscularly to make sure its absorbed well

Vitamin B12 injections are typically prescribed for people with symptoms associated with a vitamin B12 deficiency

Vegetarians and vegans, for example, may be at a higher risk of deficiency since B12 is primarily found in animal products