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How to Give a B12 Injection: Step-By-Step Instructions Volume:100mL Gut & Digestive Health https://www.tiktok.com/api/img/?itemId=7384349902978960673&location=0&aid=1988 It is normally withdrawn, mixed with the drug, and then that mixture is injected (usually intramuscularly or subcutaneously, as indicated for the drug)
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