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Intramuscular injections will bring relief RIGHT THERE, something the oral version cannot do

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Higher concentration, smaller draw volume per dose

At the cellular level, B12 acts as a cofactor for two critical enzymatic reactions: Methionine synthase converts homocysteine to methionine, essential for DNA methylation and synthesis Methylmalonyl-CoA mutase involved in fatty acid metabolism and myelin production By restoring adequate B12 levels, injections enable normal red blood cell maturation in the bone marrow, correcting the megaloblastic anaemia