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B12 Injection Dosage and Frequency: 7 Guidelines for Adults Vitamin B12 Injection Dose for Adults: 7 Dosage Facts Vitamin B12 Injection 3000 mcg CYANOCOBALAMIN INJECTION, USP 30000 mcg 30 mL (1000 mcg mL) 30 mL VIAL Vitamin B12 Injections: 8 Dosage and Frequency Guidelines
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