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Another test is often done around the eight-week mark to confirm that the treatment has successfully corrected the deficiency
If you have elevated B12 and symptoms like fatigue, weight loss, or abdominal pain, the symptoms are likely from the underlying cause of the elevation , not from the B12 itself
Some patients might also experience headaches, lightheadedness, or stomach upset, such as mild nausea [2]
Overview Each ml contains 1000 mcg cyanocobalamin
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