how much are vit b12 injections Vitamin for Injection Cyanocobalamin 1,000 mcg, 25/Box (Rx) — Mountainside Medical blood formation Vitamin B12 Injections — Anupa First, it should
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First, it should not be done on your own

Is the Certificate of Analysis public and downloadable

After initial repletion, a maintenance dose is given, often 1,000 mcg intramuscularly every month or every 2 to 3 months, to prevent recurrence of deficiency

But there is no published human study measuring how much of an oral dose actually reaches the bloodstream

Lethargy, fatigue or feeling faint
