Injecting substances can expose individuals that use injection drugs to serious harm, but understanding the difference between safer and more harmful sites can help reduce these potential dangers. Here's a breakdown of 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 B12 vitamin Store Intramuscular vs Subcutaneous Injections for vitamin B12 supplements. Lets do my first B12 injection together This is something Ive been nervous about for a long time, but today I finally did itand it honestly wasnt bad at all. I used the Union Medico needle guide