what should b12 levels be after injection Level Back Below "Normal" Initial Set of Shots : r/B12_Deficiency B12 Injections for Energy: Benefits
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Mutations of TCN1 cause transcobalamin in deficiency with low serum cobalamin levels that are indistinguishable from cobalamin deficiency [Abstract]

Lidocaine local anesthetic used to decrease the pain associated with intramuscular injection

[DOI] [PMC free article] [PubMed] [Google Scholar] 57.Zhang X, Saarinen AM, Hitosugi T, Wang Z, Wang L, Ho TH, et al

Most of these are in southeast Africa or Central America
