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Provider Guidance and Treatment Safety Considerations Before starting MIC B12 injections, discuss your baseline B12 status, metabolic goals, and injection frequency with your healthcare provider

If supplementation is responsible, your doctor may recommend reducing or stopping non-essential B12 intake, with repeat testing after an appropriate interval (typically 2-3 months, or longer if you've had recent injections or have kidney disease)

N Engl J Med 2013

Nausea is the most frequently reported adverse effect, potentially affecting thirty to forty percent of patients at some point during treatment, though the intensity typically diminishes over time as tolerance develops