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vitamin b12 subcutaneous injection Best Sites B12 vitamin Store How to
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If oral bioavailability is low (1030%, similar to some quaternary ammonium compounds), a much higher oral dose would be required to match the plasma exposure achieved with subcutaneous injection
[PubMed] [Google Scholar] 36.Tuba-Kartal A, ala-Mutlu Z (2020) Comparison of sublingual and intramuscular administration of vitamin B12 for the treatment of vitamin B12 deficiency in children
Menon et al., 2007)
