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Safety and Possible Side Effects Vitamin B12 injections are generally safe when administered correctly
Your B12 treatment can come in various forms with syringes or in an easy-to-use B12 injection kit
Brain fog, poor memory, or mood swings Low B12 slows nerve signals, which shows up as cognitive sluggishness and mood instability
Researchers who need independent concentration control should use separate component vials
Follow these steps precisely
There are some very rare side effects listed in medical literature (mostly when large doses are given): for example, one out of many thousands of patients might develop a disturbance in liver enzymes or a tingling in the fingers or toes
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