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[1] However, whilst acute toxicity is rare, elevated serum B12 levels can occasionally occur and may warrant investigation, particularly when they arise unexpectedly or in the context of certain medical conditions
Yes, but combinations should be managed by a qualified provider to ensure safety and synergy
Any persons experiencing adverse vitamin B12 injection side effect reactions - most notably pain or any visible skin reaction at the injection spot - discontinue use and speak to your doctor
References NHS
What is a B12 Shot, and How Does it Work
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