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Rotating injection sites helps prevent lipohypertrophy (tissue buildup) and ensures consistent absorption
However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing
Reconstitution and preparation checklist Getting the preparation right is fundamental
These injections are often recommended if your body has trouble absorbing B12 from food or if you have a deficiency
Needles below 25 gauge are too wide for comfortable subcutaneous self-injection
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