vitamin b12 methylcobalamin injection side effects of (Common and Serious) Vitamin B12 Side Effects

Theyre often given to people with certain health issues or who follow special diets

Wear sterile gloves if you are administering the injection to someone else

*Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids*

Commonly reported side effects include mild pain, swelling, or itching at the injection site and sometimes nausea

It can take many years (approx 20) to develop a deficiency disease in those altering their diet to one lacking in B12 due to reabsorbtion however, if failure to absorb leads to B12 deficiency disease occur within a few years (3-4)

Cloudiness usually means the powder did not fully dissolve or the vial was contaminated