Liu H, Liu D, Zhao X, Wright M, Guo H, Deng Y, Guo H
Allergic reactions are uncommon, but if you were to experience symptoms like swelling of the tongue or throat, hives, or difficulty breathing after an injection, that could indicate an allergy and you should seek medical help immediately
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Before taking Vitamin B12 Injection, inform your doctor if you: Are allergic to Vitamin B12 or cobalt Have any other food or medicine allergies An eye disease called as Leber's optic neuropathy A slow growing blood cancer where your bone marrow makes too many red blood cells (polycythemia vera) Gout (high uric acid levels in body) Iron or folic acid deficiency anemia Low potassium levels in your blood Drug interactions It is important to tell your healthcare professional about all other medicines that you have taken recently including any kind of supplements and non-prescription drugs
