cyanocobalamin b12 injection usp american regent 1,000 mcg / mL 30 mL Vitamin B12 Injection: Energy Boost

Risk Factors for Vitamin B12 Deficiency Of particular interest to family physicians, an association between metformin (Glucophage) use and vitamin B 12 deficiency has been observed

I self inject b12 Well, I'm no scientist, but I can't see how b12 increases iron

Clinical and laboratory haematology, 23(6), 365371

Safety information The most common side effects of cyanocobalamin injections include mild injection site reactions (such as redness or soreness), headache, nausea, and diarrhea

Toxicity and side effects B12 is considered relatively safe because the body does not store high amounts meaning that it doesn't build up to high enough levels to cause toxic problems