b12 injections and chronic fatigue Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL Vitamin B12 shots π can
Description
More reliable is the concentration of B12 in the cerebrospinal fluid, which is almost never measured
Only 4 stars as we'd like a 10mg size for larger studies
This is the practical reason a reader who is nervous about small-volume accuracy might prefer the 50 mg protocol the trade-off being that each vial carries fewer total doses, as the supply math shows next

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