I would still make sure you understand why they prescribe what they do instead of what you would like to be prescribed. It doesn't do them any good to prescribe you something you aren't behind/might not take properly, etc. It all might be an argument the first few times but eventually you get to respecting each other's knowledge (he of your own body and what works for you and how much you have researched particular meds, etc.) and interested in working together and learning from each other. When I have a problem I bring in scientific information/studies and hand them to him and he looks it over and tries it my way. They don't have time to keep up to date on everything so if you see something in the scientific literature you think pertains to YOU, by all means bring it to his attention.