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This is a clean, easy-to-measure setup
Unreconstituted vials: can be stored at room temperature before mixing, but refrigeration is preferred
However, an oral B12 dose is often larger because your body usually doesnt absorb it all
Both are copper complexes, but they behave like cousins: similar DNA, different personalities
[1] However, whilst acute toxicity is rare, elevated serum B12 levels can occasionally occur and may warrant investigation, particularly when they arise unexpectedly or in the context of certain medical conditions
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