In extreme cases, people with pernicious anemia or a related condition known as vitamin B12 deficiency myelopathy can develop nerve damage related to vitamin B12 deficiency
It is not for self-injection or over-the-counter sale without appropriate training and authorisation
That is a genetic-knockdown study in mice, not a drug trial: it tells you the target is real and metabolically meaningful in an animal model, but it does not test a drug, a dose, or a route
Beyond the temporary detox symptoms linked to B12, there are a few potential side effects to keep on your radar: Discomfort, discoloration, or bruising at the point of injection
Online communities promoting these compounds together lack medical or scientific oversight, and anecdotal reports should not be treated as evidence of safety or efficacy