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Without ongoing B12 replacement, deficiency and symptoms will typically recur within months to years of discontinuation
In adults and older children, the total volume used should also stay within safe limits animal studies suggest up to about 30 mL (the full vial) can be given to an adult without benzyl-alcohol toxicity, but one should still use only the amount needed and discard the rest if sterility is lost
We cover the core concentration formula, practical charts for 2 mg through 30 mg vials, syringe conversion tables, and the mistakes that waste peptides and ruin results
PMID: 30443664
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