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are b12 tablets as effective as injections Vitamin vs. Oral Supplements: Which is Better? Vitamin B12 Injections vs. Supplements:
Description
Pharmacokinetics of high doses of cyanocobalamin administered intramuscularly

Slow IV push: used for lower doses, given over several minutes
However, always consult your healthcare provider before starting treatment

Human data are limited

Older Adults Aging can lead to decreased stomach acid production, impacting the absorption of B12 from food sources

[DOI] [PMC free article] [PubMed] [Google Scholar] 60.Gao Y., van Haren M
