I Have Just Been Put On Butrans 5 Mg 7

I have just been put on Butrans 5 mg 7 day patch fo my very painful and stiff back due to age related wear. I cannot day Ibrofen because it upsets my tummy, I cannot take cocodamol because it makes me constipated, so my spine consultant has suggested these. I am dubious about these and st the moment is not too bad, but I have put the first patch on my back. What can expect. I know it can make me sleepy, and I do not drive attend moment. However, my husband has got to go to have a procedure on his prostate soon and I will hZve to drive then