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Understanding the signs and symptoms of this deficiency is essential
[22] Refrigeration is not strictly required but may prolong shelf life if temperature excursions are common
This pattern aligns with B12 pharmacokinetics: serum levels peak 8-12 hours post-injection, tissue saturation occurs over 48-72 hours (Andrs et al., Journal of Blood Medicine , 2018)
Adenosylcobalamin Less commonly used in injections
How B12 Injections Work Healthcare professionals administer B12 injections intramuscularly, typically in the arm or buttock
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