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Keep in mind, the following pointers are general clinical information and not a substitute for individualized medical advice from your prescriber
While most men tolerate B12 well, those with Lebers disease (a rare genetic eye disorder) should avoid injections, as high doses of B12 may worsen symptoms
Kain H., et al
Its a small step that could lead to big changes
NICE advises taking diagnostic blood samples before starting vitamin B12 replacement where possible
A provider screens your history, watches for any reaction, and adjusts or stops if needed
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