why is my b12 injection not working Feeling worse after Injection: Answering concerns Success! Receiving injections without PA

Persistently high levels warrant medical investigation to identify any underlying cause

Muscle Function Studies : Examines its role in enhancing muscle endurance and performance (ResearchGate)

If you are considering starting B12 supplements, particularly at high doses, discuss this with your GP or a registered pharmacist, especially if you have existing medical conditions or take other medications

Injections bypass the damaged area and deliver B12 into the bloodstream

Lee WM, Hynan LS, Rossaro L, Fontana RJ, Stravitz RT, Larson AM, et al

This is standard technique for sealed vials and should be done routinely, not just when you encounter resistance