can you be allergic to b12 injections Vitamin Side Effects Cobalt Allergy and Vitamin B12
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Its important to monitor levels and consult with a healthcare provider before starting treatment

[DOI] [PubMed] [Google Scholar] 59.Giuliano F

A qualified healthcare professional should evaluate your individual needs and determine whether B12 injections are appropriate for you

But it seems to be working out okay I had a rough start, I need to wait a bit and start over
