I personally was really irritated of the ups and down of an oxy addiction. i dosed every 6 hours of the day 20mg orally. The first two hours where nice then 2 hours of plateau and the last two hours where a pain in the ass! I could get by with this, because i could also rail 2 x 5mg oxy ir per day in those last two hours. But from a practical point of view, i was way too often withdrawing and too demotivated to do anything useful. All the time i was in this mind pattern like: " You can do X after the next pill is working, because right now you feel too bad!" I am glad i came of quick and easy.