Dear skp- you MUST keep track of what he eats and drinks on a daily basis- otherwise, if he ends up in the ER, you will not be able to answer important questions-also, if he starts losing weight, you need to be able to tell the Docs what is going on at home. Hope the fentanyl patch works[it was not good for us, but alot of people have have success with it] GEt your Nurse hat on. Amy in the Ozarks