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They are also commonly used to boost energy, enhance metabolism, and support nervous system health
Prescription Requirement It is a prescription-only medication due to the need for professional guidance in dosage and administration
Some people use over-the-counter B12 for general supplementation, but testing is important when symptoms or risk factors suggest true deficiency
This may continue for several weeks or even months, as neurological recovery is often slower and more variable than haematological response
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Ackerman R et al
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