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What Are Vitamin B12 Injections and How Do They Work

This helps healthcare providers decide how long a patient should continue treatment

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Common B12 deficiency symptoms include fatigue, anxiety, depression, poor memory, confusion, brain fog, tingling or numbness in the extremities, zings or zapping feelings in the extremities, anemia, shortness of breath, muscle weakness, irritability, tender calves, pale complexion and more

A foul or unusual smell could indicate microbial contamination