Vitamin B12 Monthly Injection Dose: Typical Dosages & Administration Methods Liv Hospital 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 Hiya. I have a question. Is a B12 injection basically a dose of iron? How to Give B12 Injections at Home to Yourself PA Relief B12 Injection Frequency: How Often Should You Get a B12 Shot? Liv Hospital How Quickly Do Vitamin B12 Injections Work? Prime Aesthetics