bruising after b12 injection from Post-Blood Draw Injections: Is It Dangerous? Is it okay to have

There is insufficient evidence for the use of B12, beyond correction of deficiency, in cognitive impairment, depression and fatigue

On the other hand, the FDA says this: "Compounded drugs containing AOD-9604 may pose significant risk for immunogenicity for certain routes of administration and may have complexities with regard to peptide-related impurities and API characterization

The clinical indication and supporting diagnosis, naming the specific condition that justifies the procedure (degenerative joint disease, an inflammatory arthritis flare, or a joint effusion under evaluation)

This is called the initial loading phase