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b12 injection cause spots Vitamin Sites: All You Need to Know Vitamin B12 Deficiency and Your
Description
72 Vitamin B 12 deficiency at the brain level is associated with affective disorders, behavior changes, psychosis, cognitive impairment or decline, and dementia (including Alzheimers disease and vascular dementia protection)

doi: 10.1016/j.bmcl.2014.03.065

[DOI] [PMC free article] [PubMed] [Google Scholar] 231.Denburg J.A., Sehmi R., Upham J

Most cases were mild to moderate

10 mg vial 3 mL 150 mcg dose Concentration: 10 mg 3 mL = 3.33 mg/mL (that is 3,333 mcg per mL)

It says this specifically in the NHS constitution
