Bacteriostatic water isnt like regular water
This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation
Round to the nearest half or whole unit you can read reliably, or reconstitute with a different amount of water so the dose lands on an easier mark
It also reviews research comparing oral and injectable delivery methods and outlines factors clinicians may consider when discussing compounded formulations
Atrophic gastritis, a condition that depletes stomach acid, also reduces B12 absorption
Please call your doctor if you have any further concerns or questions