is sterile water the same as bac water Bacteriostatic for Injection, 30mL, 25/pack Bacteriostatic Water and Sterile Water:

Vitamin B12 injections can be useful as an alternative or adjunctive therapy to corticosteroids and other pain management medications

Adding too much creates unnecessarily dilute solutions that may not fit in a single syringe draw for higher doses

Talk to your doctor or endocrinologist about safe ways to alter your current medications to safely incorporate these injections into your regimen

doi:10.1055/s-2007-981536 Jung F, Mrowietz C, Kiesewetter H, Wenzel E

The volume of water you add directly determines the concentration (in mcg/mL) of your solution

It simply reflects fewer B12 molecules per milliliter of solution