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How Fast Does B12 Injection Work
Physically, you might feel weak, dizzy, or notice a strange tingling or numbness in your hands and feet
6 to 8 hours of fasting is required before the tests
But, some might feel: Pain, redness, or swelling at the injection site Mild diarrhea or itching Headaches or fatigue These issues are usually mild and go away quickly without needing a doctor
The intensity of the pink coloration can vary depending on the concentration of B12 in the formulation, ranging from pale pink in lower concentrations to deeper pink or light red in higher concentrations
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