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Allergic reactions are very rare, but if you ever experience itching, rash, or difficulty breathing after receiving a B12 injection, please seek immediate medical attention or contact our office right away
Once in the body, B12 works to support the proper functioning of the brain and nervous system, as well as the production of red blood cells and DNA
Some of the serious side effects of Vitamin B12 include serous allergic reaction, narrowing or blocking of blood vessels, thrombocytosis (a disorder where your body produces too many platelets), low potassium levels in body, pulmonary edema (a condition where there is excess fluid in the lungs) and congestive heart failure
These are related particularly to studies focused on subcutaneous fat and appetite control
Starting Treatment Some patients may need a short course of more frequent injections at the beginning to restore vitamin B12 levels
After that, you need one every month
