... chronic pain. watch for the makers too. Different manufacturers of certain same 25 mg work better then others. this is my third manufacturer or second. I am on my third month and the second ones were smaller same mg but worked better. I don't know why but they did. It is better then nothing. I have gastroparesis too and diabetic so they don't want to give me morphine extended anymore they think it is bad for the gastrop. It is severe and I can only eat ten solid things the rest of my life and liquids. the patches are for my bulging discs and arthritis in the back especially the fibromyalgia I have