[82] also reported that the use of a dialysis membrane promotes uniform particle size distribution [82], which may otherwise vary due to batch-to-batch variation of precursors [79]
You will feel the benefits of the B-12 injection within 48 to 72 hours of receiving the shot.
We found two other cases of injections being effective during pregnancy: 1,000 g every two weeks and 5,000 g per week (Vithlani, 2017)
In short, B12 injections are great for managing deficiency and preventing serious problems like permanent brain damage
Unlike sterile water for injection, which contains no preservatives and must be used immediately upon opening, bacterostatic waters preservative system allows for multiple withdrawals from a single vial when handled using proper aseptic technique
Anyway, these are all the limitations that I kind of drew from the paper