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[22] Refrigeration is not strictly required but may prolong shelf life if temperature excursions are common
Whether it produces meaningfully better outcomes than once-daily dosing in humans remains unknown
Medically, vitamin B12 shots are only for people suffering from B12 deficiency
In UK practice, monitoring is primarily based on clinical response rather than routine blood tests, as post-treatment serum B12 measurements can be misleadingly high and may not reflect tissue levels
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