Who should check with a provider first If you are pregnant, nursing, have kidney disease, or take medications that interact with B12 metabolism (such as metformin), discuss this with a provider before starting
TREATMENT LENGTH A quick, daily self-administered subcutaneous injection
Many people report feeling an energy boost within 12-48 hours
Some prefer injecting near the injury site for localized effects, while others use subcutaneous abdominal injections for systemic distribution
doi: 10.1097/BOR.0000000000000128 22 GaleazziMSebastianiGVollRViapianaODudlerJZuffereyPet al
It is important for the formation of red blood cells, the production of DNA, nerve function, and cell metabolism