allergy b12 injections What causes pruritus after Vitamin (Cobalamin) injection? B12 Injections - Buy B12
Description
It is a small synthetic molecule that blocks an enzyme called NNMT (nicotinamide N-methyltransferase)
[DOI] [PubMed] [Google Scholar] 111.Lieverse RJ, Jansen JB, Masclee AA, Lamers CB
If your doctor suspects you have leukemia, they may do a B12 test before ordering a more complex test, such as a bone marrow biopsy

Causes and pathophysiology of vitamin B 12 and folate deficiencies
