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The best approach depends on the underlying cause of the deficiency
Direct injections are also the best solution if you cant keep down oral supplements due to vomiting, nausea, or digestive issues
05 Swirl, do not shake Gently swirl or roll the vial between your hands until the powder dissolves into a clear solution
For dietary deficiency, the BNF recommends oral cyanocobalamin 50150 micrograms daily
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