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A blood test is the only way to confirm it
They correspond to two different documented protocols and per-dose amounts (150 mcg vs 2.5 mg)
NHS Guidelines on B12 Treatment and Weight Management The NHS follows NICE and British Society for Haematology guidelines for B12 deficiency management, which emphasise evidence-based diagnosis and treatment protocols
The right choice depends on deficiency cause, route preference, tolerability, availability, and monitoring needs
Adult Dosing Dosage may vary based on different medical indications: For the initial treatment of vitamin B12 deficiency, the usual dose is 1000mcg SC/IM, given once a day for 1 week, followed by 1 dose a week for 1 month
The effect of parathyroid extract and dibutyryl cyclic AMP on NAD and NADP levels in embryonic mouse calvarium explants
