how long do vit b12 injections take to work Fast Does a Vitamin Shot Work? The Truth About B12 Injections:

Signs that youre not getting enough B12: Fatigue Weakness Confusion Memory issues Headaches Depression Pale skin Pain and swelling in the mouth or tongue Erectile dysfunction Vitamin B12 Benefits B12 is linked to several important functions in the body, including: Red blood cell formation Your body needs B12 to produce healthy red blood cells

doi: 10.1016/j.chembiol.2008.08.007

The Doctor Says: While hydroxocobalamin has distinct advantages in certain contexts, other forms of B12 such as methylcobalamin and cyanocobalamin also have their own uses and benefits

It is commonly used to treat moderate bacterial infections caused by susceptible organisms