Vitamin B Complex 100 Injection (with Dexpanthenol), Multiple Dose Vial 30 mL McGuff Vitamin B12 IM Injectable at Philly IV Lounge Vitamin B12 is a non toxic, water soluble vitamin that is very easy to replenish. It is important for the brain and nerves, and for the production of red blood cells. A few good food sources of VITAMIN B12 (Generic) Injectable Solution, 1000 mcg mL, 100 mL vial Easy Refills Chewy Rx