b12 injection 1000 mcg ml ampoule adult dosage CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 (1000 mcg/mL) 30 mL VIAL vitamin b12 injection regimen vitamin B12 INJECTION Best injectable B12 Vitamin B12 Injection Dosage: as indicated by condition Concentration:1000 MCG/ML
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