Neelakantan H, Brightwell CR, Graber TG, et al
The US National Academy of Medicine updated estimated average requirements (EARs) and recommended dietary allowances (RDAs) for vitamin B 12 in 1998
Sublingual forms dissolve under the tongue, with the idea that some B12 enters through the mouth's membranes instead of the digestive tract
Check serum vitamin B12 levels, complete blood counts, and how the patient is doing regularly
Summary: Vitamin B12 injections for pernicious anaemia deliver hydroxocobalamin intramuscularly to bypass malabsorption caused by lack of intrinsic factor, rapidly correcting deficiency and preventing neurological damage
Personal comfort with needles and the ability to manage a daily supplement routine are important considerations when choosing between B12 shot and pills