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Vitamin B12 injections are clinically indicated for specific patient groups with documented deficiency or malabsorption conditions, rather than as a general energy supplement
When to call a professional Contact your doctor for a physical examination if you experience unexplained fatigue, palpitations, shortness of breath, sore tongue, or any other symptoms of vitamin B 12 deficiency
This rationale is theoretical
You can return to work, workouts, or errands right away
Most manufacturers also recommend a specific dosage
Best for very small doses and low concentrations
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