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Human Molecular Genetics 11 (26): 33613369
If you are unhappy with a change to oral treatment, it might be worth pointing out in any letter you write to GP that you have not given your informed consent for the change in treatment
B12 is a water-soluble vitamin the body uses for red blood cell formation, nerve function, and energy production
Therefore, vitamin B12 is thought as safe and non-toxic, although its still always best to stay with the suggested quantity and not take big dosages of any supplement without speaking with a doctor first
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