In 2015, the FDA addressed the concerns with a Safety Communication stating that it is safe and that the studies showing that it wasnt safe were all flawed.[ref] Lets take a look at some of the studies and then dig into the mechanism of action
6K and S7L and Table S24)
Tell your prescribing doctor if you have any of these conditions, which can increase B12 shot side effects: An allergy to cobalt Kidney disease Severe megaloblastic anemia Side Effects from B12 Shots The most common B12 shot side effect is swelling at the injection site
Some other vitamins include niacin, riboflavin, and folic acid, among others
Common symptoms of a vitamin B12 deficiency include: Tiredness Lethargy Feeling faint Breathlessness Less common symptoms include: Headaches Heart palpitations Altered taste Loss of appetite Ringing in the ears (tinnitus) Looking pale Sore mouth and tongue If it is left untreated you can end up with longer term problems including: Psychological problems such as depression, confusion, memory problems Nerve problems such as numbness, pins and needles, vision changes and unsteadiness A blood test can indicate if you have a B12 deficiency
This form of the disorder is referred to as cytochrome b -negative X-linked CGD