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For others, like chronic celiac or Crohns disease, you may need B12 injections throughout your life
Frequency depends on your baseline B12 levels and wellness goals: Initial deficiency correction: 12 injections per week until B12 levels stabilize
Seek immediate emergency care (call 999 or go to A&E) if you experience symptoms of a severe allergic reaction after a B12 injection, such as difficulty breathing, facial or throat swelling, widespread rash, or dizziness
skin flushing is far less common with nicotinamide than with niacin (nicotinic acid)
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