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Description
each ampoule contains 1 mg - so you would need to use a full ampoule to get the normal dose of 1mg - a lot of fluid to inject in one go

Oral capsules vs
Amino Acids 41:495506

If you intend to supplement vitamin B12, choose a form with methylcobalamin, hydroxocobalamin, adenosylcobalamin, or a combination of these (avoid cyanocobalamin, if possible)
