how quickly do b12 injections take effect long before vitamin work how you feel after a b12 injection How Does B12 Shot Work? Does It How Long Does It Take
Description
Vitamin B12 is a water-soluble vitamin , meaning any excess is usually excreted through urine rather than stored in the body

The vitamin injection is typically administered intramuscularly (IM)

A: One booster shot takes only seconds to inject and will last you for at least a week.

You can also take methylcobalamin or hydroxocobalamin supplements daily or even try B12 injections if you know your blood level is low.
