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Description
Enhanced Immune Function : By supporting the production of healthy red blood cells, B12 injections can strengthen your immune system, helping your body fight off illness more effectively

[DOI] [PMC free article] [PubMed] [Google Scholar] Li Q
A person may experience peripheral sensory neuropathy due to vitamin B6 toxicity, for example, which most commonly causes numbness in the extremities (3)

Administration: Intramuscular injection
