That is a deficiency being corrected, not a boost above normal
Hydroxocobalamin Cyanocobalamin and hydroxocobalamin are the two main types of Vitamin B12 used in injections
213004 DIN No.00038202 UPC Code 0118821353977004 Bacteriostatic Water for Injection is a sterile, nonpyrogenic preparation of water containing 0.9% (9 mg/mL) of benzyl alcohol as a bacteriostatic preservative
It is also important to note that taking large doses of folic acid can sometimes mask the hematological signs of a B12 deficiency, allowing neurological damage to progress unnoticed
Perhaps most importantly, individuals with malabsorption issues may take oral supplements faithfully yet remain deficient, wasting money and time while symptoms persist
The well-known geriatrician-haematologist Larry Solomon, working at Yale University in the USA, wrote 20 years ago: if I had treated only those people who actually had too low serum B12 and elevated MMA values, then I would not have treated approximately two-thirds of the people with a favourable response to B12 supplementation (note: partly via injections, partly via oral supplementation)
