how much vitamin b12 is in the injection Best Site: Administering B12 Shots Cyanocobalamin (B12) Injection 1000 mcg/mL,

After receiving your Vitamin B12 shot, you may be asked to remain in our office briefly so our staff can monitor for any immediate allergic reactions, especially if this is your first injection

Similarly, a meta-analysis of nine observational studies in older adults found low serum vitamin B 12 concentration to be associated with increased risk for depression, with significant association only in women (100)

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Daily doses are necessary, yet we have many readers who complain of only being able to obtain an injection every few weeks or months

Mild reactions usually clear up once you stop taking the drug