Vitamin B12 Injection Dosage Guide: 7 Essential Dosage Facts for Adults Liv Hospital Vitamin B D B12 Injections Near Ne Wilmington Urgent Care Clinic Wilmington Urgent Care And Family Clinic B12 vitamin Store How to Perform a Subcutaneous Injection of Vitamin B12 B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics CYANOCOBALAMIN INJECTION, USP 30000 mcg 30 mL (1000 mcg mL) 30 mL VIAL Subcutaneous (SC) and Intramuscular (IM) Injections Must Knows for Subcutaneous administration: Pinch skin with non dominant hand and hold syringe with dominant hand Always inject: 2 inches away from umbilicus (for abdomen) 3 inches