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A licensed healthcare professional administers the injection in a few minutes
Syringes and needles for injection ordered separately
Unlike oral supplements that may take weeks to absorb and are often less effective due to digestive limitations injectable B12 works quickly and efficiently
## **What is a vitamin B-12 injection?** HCPCS code J3420 refers to an injection of vitamin B-12 (cyanocobalamin), a synthetic form of the vitamin used to treat pernicious anemia, dietary folate deficiency, and other specified B-group deficiencies
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