I receive monthly intramuscular vitamin B12 (cobalamin) injections, but my serum B12 level measured two weeks after the injection is only 268 pg mL; why is it low and how should the dosing Cobalamin (vitamin B12) and Folate Deficiency Province of British Columbia Vitamin B12 Injections: What You Need To Know Been unwell for a year, b12 injections again even though levels are 840? : r B12_Deficiency
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b12 injections not raising levels Vitamin B12 Injections: What You Need To Know