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Duration: The period for B12 injections varies based on the deficiencys cause

Compr Physiol (2016) 6:687735

doi: 10.1016/j.tips.2017.07.001 [DOI] [PubMed] [Google Scholar] 37

Reinherz ( CD38 monoclonal antibodies possess a variety of mechanisms for their action

These injections use hydroxocobalamin, and research indicates that oral supplementation can offer absorption comparable to injections in many situations
