what is b12 injection Vitamin A Vitamin B12 a quick shot that gives your body vitamin B12 directly into the muscle. This helps your body absorb it faster than tablets. Vitamin B12 helps B12 Injection Services - Subtly

In fact, many veterinarians will give cats who have chronic GI symptoms a shot of cobalamin at the beginning of therapy, before the results of cobalamin testing are in and a definitive diagnosis has been made, because it is so safe and might make the cat feel better faster

What are the primary causes of vitamin B12 deficiency

But does it have any other shady little tricks up its sleeve

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[13] [14] If you have any concerns about your treatment, symptoms, or injection schedule, do not hesitate to discuss these with your GP or haematology team

National Research Council