Moreover, those lacking in Vitamin B12 may experience discomfort in the mouth and on the tongue, highlighting the far-reaching effects on overall health
As people age, they sometimes have trouble absorbing vitamin B12, even when taking pills by mouth, which is when vitamin B12 injections may be considered
Carcinogenesis, Mutagenesis, Impairment of Fertility Long-term studies in animals to evaluate carcinogenic potential have not been done
"Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls." Journal of pharmaceutical and biomedical analysis 101 (2014): 66-83.
I really think that the ampoules start to lose their potency , not immediately after the expiry date , but fairly soon
There are different forms of B12 the main two are cyanocobalamin and methylcobalamin