This would mean oral dosing is only relevant for GI conditions
However, while you can get them through natural sources, some people are still not getting enough vitamin B12 daily (like vegetarians or vegans)
Other factors that can cause vitamin B12 deficiency include gastrointestinal disorders, ageing, and certain medications like metformin and proton-pump inhibitors
Without it, you develop pernicious anemia and irreversible nerve damage over years
Monitoring and follow-up: Routine blood monitoring of B12 levels after treatment initiation is generally unnecessary, as levels will be artificially elevated
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