Top 5 Vitamin Injections & Their Powerful Uses Did you know vitamin injections can boost recovery faster than oral supplements? From nerve health to treating anemia, these essential injections play B12 Injections for Energy: Benefits and How It Works AZ IV Medics Should You Take Natural vs. Synthetic B12? Vit B12 to resolve symptoms of burning, shooting pain, due to peripheral neuropathy, affecting the patients mobility . Typically patients have these symptoms due to diabetes, or autoimmune conditions