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Other common symptoms of B12 deficiency include: Lethargy or a total lack of energy Extreme fatigue Palpitations Pale skin Feeling faint Breathlessness Weight loss and loss of appetite Your doctor may prescribe B12 injections in extreme cases that take effect right away
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1 2 Proceedings of the National Academy of Sciences of the United States of America
Advantages : Allows for the delivery of higher doses in a single injection, reducing the need for multiple injections
They work by delivering a concentrated dose of B12, typically in the form of hydroxocobalamin, directly into the muscle
This targeted mechanism minimizes the risk of off-target effects and supports the compounds favorable safety profile
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