What Are Subcutaneous Injections? IV Me Now FL Common IM Injection Sites Deltoid (Upper Arm) Location: About 23 finger widths below the acromion process (shoulder bone). Best for: Vaccines and small volume injections (1 mL). Notes: Easy to access but limited What are the places you can inject subq? : r ftm B12 vitamin Store A Retired RN About Vitamin B12 Injections 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