B12 injections: The usual injection of B12 is 1ml. Typically it has 1mg/ml in the injection.
Answered 6/15/2020
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Depends: Depends on concentration of the B12. If 1000 mcg/ml, then inject 1 ml. This is just a general dose, and your doctor may recommend a different dose.
Answered 8/17/2017
3.7k views
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