Methylcobalamin 10,000mcg injectable, 10mL (lyophilized) Defy Medical How To Give B12 Injection + Benefits Not all shots are the same here's a guide Injections are a fast, effective way to deliver medications, nutrients, and vaccines directly into the bodybut not all injections are the How to Give B12 Injections at Home to Yourself PA Relief How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust 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