b12 injections in pregnancy are safe during The effects of vitamin B12 supplementation pregnancy and postpartum b12 injections during pregnancy Building
Description
[1] [2] Neurological protection: Prompt B12 replacement prevents irreversible neurological damage in deficiency states, including subacute combined degeneration of the spinal cord
Archives of Pharmacal Research

Recordkeeping: Log the daily dose, injection site and any observations to keep the protocol consistent

However, the injectable route isn't without its own set of considerations

Increased flux of key cellular energy regulators, including NAD + and SAM, may potentially define the therapeutic mechanism-of-action of NNMT inhibitors
