As someone who was on long term opiates for some serious chronic pain, I can tell you it's no picnic and even then it doesn't eliminate all the pain, plus the added pleaseure of being addicted even though when it's prescribed to you, they don't use the word addicted although I forget the term they do use.
Well, would you say that those are arguments for or against legalization? Is "medical morphine" just a scam perpetrated by people who want to be able to get it for recreational use?