Current use is limited to research purposes under physician supervision
Does this include hands-on injecting practice
Instead, change the needle, reinsert in a slightly different area, and repeat process
doi:10.1016/j.tem.2017.02.004 (PMID 28291578) Roberti A, Fernndez AF, Fraga MF
High-dose oral supplements (often 10002000 micrograms daily) or intramuscular injections (typically 1mg hydroxocobalamin) used to treat pernicious anaemia or deficiency states can temporarily elevate serum levels
By comparison, cyanocobalamin, a form of B12 commonly found in many supplements, has a cyanide group on the cobalamin instead of a methyl group