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Allergic Reactions to B12 Injections Though rare, anaphylactic reactions (strong allergic responses) have been reported to either cyanocobalamin or hydroxocobalamin
References Food and Drug Administration
Understanding the scientific basis of these injections helps in assessing their potential role in weight management
Published Phase 2 clinical trial data used doses of 1mg, 4mg, 8mg, and 12mg administered weekly via subcutaneous injection
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