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Note that these two documented starting doses are worlds apart in size 150 mcg versus 2.5 mg is a roughly 17-fold difference

Advanced Symptoms You Should Never Ignore If vitamin B12 deficiency goes untreated, symptoms can become severe: Balance and coordination problems Vision disturbances Muscle weakness Difficulty walking Permanent nerve damage Early diagnosis is critical because long-term nerve damage from vitamin B12 deficiency may not be fully reversible

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He tells the physician that he is feeling persistent numbness and weakness in his arm

Minimization of facial synkinesis

The frequency will be as prescribed, often once a week or as directed