does vitamin b12 injection have side effects

B12 plays a role in red blood cell formation, DNA synthesis and the central nervous system Type:1000 mcg/mL - 10mL https://i.ytimg.com/vi/Kq1-V3-aPL8/sddefault.jpg b12 injection side effects GPromo Vitamin Therapy | Vitamin Injections | Portland, OR — Dr. Heather Friedman ND, LAc

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