Methylcobalamin 10,000mcg injectable, 10mL (lyophilized) Defy Medical Choosing the Right Needle and Syringe for B12 Injections: A Complete Guide 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 Learn how to administer your own SubQ (subcutaneous) injections at home with confidence. Our step by step guide covers everything you need to know, from preparing your supplies to safely injecting the medication. Our Subcutaneous Injection: What It Is and How to Give One How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust