Opanas used to be one of the most abused prescription opiates in the US, back when the old, crushable formula was still around, but if you don't screw around with them, pretty much every opiate is good if used as prescribed.

I used to smoke cigarettes, smoke weed, drink heavily too... not to mention taking antidepressants. I've quit all of them. I rarely drink nowadays and when I do, I don't get shitfaced. I've never had a hard time quitting these, the reason being that these weren't things I really enjoyed that much in the first place. With opiates it's different because I still enjoy it, even at low dosages and with a high tolerance. Those other things were just addictions, the tough thing is when you're psychologically addicted and you ENJOY what you do.