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what happens if b12 is injected into a vein Vitamin Injections: Hot Shots? Full Guide · PA Relief Best Vitamin B12 Injection Site:
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The injection can be given intramuscularly or intravenously, depending on the doctor's advice and the selected injection site

doi: 10.1177/096032718700600107

Swab every time

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Therefore , regular injections may prevent numbness or tingling and support your memory as you age