Rx Item Cyanocobalamin 1000mcg 1X30 ML Multi Dose Vial by Hikma Pharma Vitamin B12 Injection 10mL Vitamin B 12 Cyanocobalamin Injection 1000MCG mL 30 mL MDV Med Plus Physician Supplies B12 Injections at Olympia CYANOCOBALAMIN Vitamin B12 Injectable Solution for Horses, 5000 mcg, 100 mL Easy Refills Chewy Rx Vitamin B 12 Injection for Animals, 3000 mcg mL, 100 mL Vial Prescription Medication for Pets