side effects of too much vitamin b12 injections 5 excessive intake of Vitamin B12 shots: Uses, benefits,

This medicine does not contain lactose, sucrose, gluten, tartrazine or any other azo dyes

methylcobalamin Vitamin B 12 appears to have only two functions in eukaryotes: as a cofactor for the enzymes: Methionine synthase MethylmalonylCoA mutase Sources of vitamin B12 Vitamin B 12 is in the gastrointestinal tract of animals and is then absorbed by the host animal

Low levels or poor absorption can limit how effectively these systems operate

But, some might feel: Pain, redness, or swelling at the injection site Mild diarrhea or itching Headaches or fatigue These issues are usually mild and go away quickly without needing a doctor

Make sure to see a doctor instead