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im injection b12 Cyanocobalamin – 1000 mcg/mL B12 vitamin Store How to
Description
doi:10.1016/bs.afnr.2017.11.005

Common mild side effect may include soreness or redness at injection site, mild diarrhea, nausea, headache, and itching
Science 107, 397-398

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C., Maddatu T

Inject with confidence knowing the anatomy is working in your favor
