can b12 injections cause back pain Epidural Steroid vs Surgery for B12 Injection Dosage and Frequency:

This type of injection uses a short needle to inject the contents of a vial into the tissue layer between your skin and muscle

Do You Need a Prescription for B12 Injections

It does sting but well worth it

Common side effects include: Injection site reactions pain, redness, or swelling at the injection site Mild diarrhoea or gastrointestinal upset usually transient Skin reactions itching or rash (uncommon) Hypokalaemia rare, occurring when severe megaloblastic anaemia is corrected rapidly Serious adverse effects are extremely rare but may include anaphylaxis in hypersensitive individuals

I would highly recommend 5-Amino 1MQ all-around, but its a great alternative when you are unresponsive to peptides such as Ipamorelin for losing abdominal fat tissue