B!2 Inject Kit: Package Insert Prescribing Information NEW TREATMENT ALERT A vitamin B12 injection helps treat or prevent deficiency by delivering the vitamin directly into the bloodstream. It's often used for people with absorption issues and is usually safe Vitamin B12 Injections: What You Need To Know Hycomin Buy Hycomin B12 Injection Online Derma Solution Cyanocobalamin 1,000 mcg mL Injection 1 mL McKesson