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 B12 vitamin Store A Retired RN About Vitamin B12 Injections How to self administer subcutaneous B12 injection., 1. Withdraw proper dosage from vial into an insulin syringe, 2. Clean site of injection (abdomen or other proper site), 3. Pinch the skin where you How SubQ Injections Like B12 and NAD+ Fit Your Routine Olympia Pharmaceuticals Compounded Hydroxocobalamin (Vitamin B12) Injection