why do i feel tired after my b12 injection How Can Vitamin Shots Help Me Refreshed Feeling tired, foggy, or run-down?

Intravenous B12 Administration For those with severe vitamin B12 deficiency, getting B12 through an IV is a quick and effective way to treat it

However, due to its synthetic nature it is also the least bioavailable and active (Hunt, Harrington and Robinson, 2014) Methylcobalamin: The first of our non-synthetic forms of B12 is methylcobalamin, a naturally occurring co-enzyme

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methionine, one of the key ingredients, may aggravate metabolic acidosis and a compromised liver may be unable to properly metabolize the compounds

These are the standard B12 injection sites for self-administration