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This is not uncommon and may be related to the body adjusting to a rapid increase in B12 availability, especially in patients who were significantly deficient
Nonetheless, it is getting frequently prescribed for increasing muscle mass and putative, unproven , anti-aging benefit
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However, its always important to consult a healthcare provider to ensure this treatment is appropriate
Assessment and Monitoring Initial workup should include a basic metabolic panel (to check glucose and electrolytes), a 12-lead ECG, and vital-sign monitoring
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