I too, worried about this, and travelled without any of the meds on the banned list. I don't know why I bothered. When we arrived in Dubai, there were no controls! Just a totally disinterested official who glanced at our passports and waved us through.
Of course, that doesn't mean everyone will have the same experience.
The list, by the way, is download-able (don't remember exactly from where) and contains some real surprises. Oh, and don't think you can purchase the meds when you arrive. Without a UAE prescription, forget it. We tried.
For the first 4-5 days of our cruise I suffered withdrawal symptoms!
The upside? I no longer take the meds I was not permitted to take into the UAE.