b12 levels too high after injection For those taking injectable B12, how often is your level tested? : r/B12_Deficiency High Vitamin B12 Levels: Causes,
Description
I was quoted prior to the appointment

All reconstitution and handling should be performed under suitable aseptic laboratory conditions

The condition can be reversed by taking oral vitamin B 12 supplements and adding foods containing B 12
This means more vitamin B12 is needed
For extended storage, aliquot into sterile containers and freeze at -20C

How long after using nitrous oxide do B12 symptoms appear
