where do you administer a b12 injection Choosing the Right Needle and Syringe for Injections: Complete Guide Best Vitamin B12 Injection Sites
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The absorption rate varies, but improvements in symptoms can often be observed within a week or two of starting supplementation

Dispose of the needle properly (in a sharps container, and not in your regular garbage return it to the docs office or a biohazard collection site!) After the B12 shot is injected into your upper arm, thigh, hip, or butt, you should experience benefits right away

How Often Should You Get a B12 Shot
