what is b12 injections given for Vitamin Injection Dosage Vitamin B12 Injection at a

Add supplementation only if levels decline below 400 pg per milliliter or symptoms suggest deficiency

Most B12 shots use methylcobalamin or cyanocobalamin, two forms of vitamin B12 that support red blood cell formation, nerve health, and homocysteine metabolism

Human clinical trials have not been completed, meaning efficacy and safety in people is not established through rigorous research

It is not approved for human or veterinary use, and no therapeutic claims are made

Methionine is needed for S-adenosylmethionine (SAMe)

Typically, to begin with, you'll be asked to take the injection multiple times a week to increase the B12 levels