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b12 injection dosage Best Vitamin Dose and Frequency · PA Relief Best Vitamin B12 Injection Site:
Description
B12 injections are shots that contain high doses of vitamin B12 that are used to quickly elevate levels in someone with a deficiency

Treatment of such an overdose would be mainly supportive, since there is no specific antagonist for B vitamin excess

Side effects like reactions at the injection site are common

[DOI] [PubMed] [Google Scholar] 194.Emorine L, Blin N, Strosberg AD

No, this particular formulation of Vitamin B-Complex Injection does not contain vitamin B (cobalamin)
But plausibility isn't proof