can vitamin b12 injection change urine color Quantification of chromatographic effects of B supplementation in and implications for hydration assessment Cyanocobalamin Injection: Vitamin B12 Deficiency
Description
If your body does not have sufficient B12, then it cannot make energy and so therefore you are weak, tired, or unfocused

Although side effects to the injections are rare, and they are generally well tolerated, it is possible that some people can experience mild adverse effects

Zinc* Zinc is an essential mineral for the immune system and you need it for fertility
Needle gauge may differ depending on the prescribed method
