How to give insulin shots Stead Family Children's Hospital Insulin Syringes 31 g x 8 mm 1 mL Ultra Fine 100 Box 328418 Master Insulin Syringe Use for Diabetes Shop Now How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust How to give insulin shots Stead Family Children's Hospital 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