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Anaphylaxis following B12 injection has been documented in medical literature, particularly in patients with sensitivity to cobalt or cobalamin compounds
Do I need a blood test before starting B12 injections
Redness or swelling at the injection site Itching or rash Difficulty breathing or swallowing Proper Administration Techniques Using the right way to give injections is vital
Vitamin B12 is necessary for the proper development and function of the blood cells, nerves, brain, and other parts of the body
Talk with your doctor or a registered dietitian about whether or not you should supplement with B12 and how much you should take.
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