why do i need a vitamin b12 injection Benefits of Injections for Skin Feeling worse after B12 Injection:

Do not use in cats with previous allergic reactions or hypersensitivity to B12 Discontinue if negative side effects occur

If the reason is less clear, the care team may recommend review of symptoms, outside records, or broader follow-up before turning B12 into a repeating plan

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Hasan, T., R

The lowered absorption rate and increased frequency attributed to oral supplements can cause the overall treatment process via tablets to be slower than that of B12 injections

Low levels of the zinc-dependent enzyme alkaline phosphatase (ALP)---included in a comprehensive metabolic panel---may help reveal a functional zinc deficiency