BD 309575 Syringe with Needle 3cc Luer Lock Disposable 21G x 1" Sterile Single Use Syringe for General Injections, 100 BX CIA Medical 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 Vitamin B12 Hormone Therapy Richmond VA Optimal Health & Wellness B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics