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This represents the most common starting point in practical protocols and aligns with the midpoint of clinical dosing ranges adjusted for average body composition
More severe side effects are rare but can include low potassium, headache, dizziness, and chest pain
Rest in the clinic for a moment
Initial response time also depends on: Severity of the B12 deficiency Frequency of injections Underlying health conditions Absorption and metabolism differences If youre getting your first B12 shot, your provider may start you on a more aggressive schedule, such as weekly injections until your levels are normalized
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