I think most psychiatrists have an "If it ain't broke don't fix it" attitude, and it makes some sense. However, when I would clock a lot of time stable (say six months), I was able to sometimes twist their arm to make a very small reduction, with caution. But certainly no reduction with lesser time stable.
I totally totally understand wanting to lower medications that cause bad side effects. Often it is even necessary. However, a lot of doctors see patients (maybe not you) that wish to lower medications to feel "less ill" or deny the illness to a degree, and its power over their lives. I know that I went through such a stage and it can be dangerous as it makes patients want to quit a medication (or more) as a rebellion. A mix of acceptance and well calculated changes is necessary.