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Invert the vial and inject the air from the syringe into the vial
Your doctor will numb the area with lidocaine, the same way your dentist numbs you before you have a cavity filled
Your supplementation strategy should be based on your individual B12 status and risk factors, not the source of your medication
Doing the Math: Calculating Your Dose This is where precision matters most
Patients considering combination approaches should understand that this represents an unproven strategy that increases cost and injection burden without documented benefit
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