US$ 23.88
will a doctor prescribe b12 injections Methylcobalamin Injection (Vitamin B12) Get B12 injection online -
Description
NAD+ enhancement has been shown to reduce neuroinflammation and improve cognition in models of neurodegeneration [3]

Allergic Reactions Allergy to vitamin B12 is uncommon

I can appreciate the reasoning for not doing a B12 assay when checking her ferritin [or whatever iron indicator] but checking B12, Folate and Ferritin at the outset is probably wisest

Br J Haematol 166(4):496513