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Cellular Roles and Conversion Pathways Once injected, cyanocobalamin must convert to methylcobalamin or adenosylcobalamin inside the body
Interactions: Inform patients that certain drugs (antibiotics, methotrexate) can affect B12 testing, but generally B12 injections have no major drug interactions
This informs whether peptide therapy, testosterone replacement or a combination may be most appropriate
The aging process affects the stomachs ability to produce intrinsic factor, a protein necessary for B12 absorption, explains why older adults need regular shots
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