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It is crucial to have a proper diagnosis before beginning B12 supplementation to avoid overuse or unnecessary treatment
Many people feel a noticeable energy lift within hours of their B12 injection, with the maximum benefit usually appearing one to two days later
If needed for a clear medical indication (such as treating pellagra in a pregnant patient), niacinamide can be used with caution, but unnecessary high-dose B supplementation is avoided in pregnancy
The need for the list took on new urgency in 2012, when more than 60 people died from fungal meningitis infections contracted from a drug produced at a compounding facility and dispensed to hundreds of people
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