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Unlike deficiency states, which produce well-characterised neurological and haematological symptoms, there is no clearly defined clinical syndrome associated with B12 excess from supplementation alone
Handling of this product should be undertaken only by licensed, qualified professionals
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Well cover how to give Vitamin B12 shots, including how to measure the dose, where to inject, and how to do it yourself
Contact your GP for B12 testing if you have: Symptoms suggesting deficiency (persistent fatigue, pins and needles, memory problems, glossitis) Risk factors for deficiency (vegan diet, gastric surgery, long-term metformin or proton pump inhibitor use) [1] [4] Concerns about whether your current supplementation dose is appropriate Underlying conditions affecting B12 metabolism (kidney disease, liver disease) Unexplained high B12 levels on a blood test when not taking supplements Routine monitoring is essential for patients receiving therapeutic B12 injections
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