I don't have the data to back this up, but I don't think the DEA is the primary impetus for drug testing patients. What I surmise is that most likely, a double-blind academic study was done, just like how they establish every other standard treatment protocol. Likely, they determined that drug-testing patients significantly reduces the incidence of OD and abuse, i.e. reduces morbidity and mortality. Being scientists, they adopt the technique that works.
There is a big difference between treating a one-time injury and writing a prescription for 20 pills, versus someone with a pinched spinal cord that's never going to get better, that gets a permanent supply. For the latter, you go to a pain specialist. IIRC GP's dont even get involved with that.
> that should be no more dangerous than any other medicine
an NSAID "should be no more dangerous" than an opiate ? Please tell me you are aware that unrelated molecules will have dramatically different pharmacological effects on a human body.
If a doctor gives you access to a deadly product, one that could kill you if you go over by merely a single pill, and doesn't do everything they possibly can, then a jury, medical board, or (in rare cases) the cops might have a case for malpractice or patient endangerment. Anyway, I dont have any more fuel to back this argument up, but I wish your friend the best, pain-free life!
As for over prescribing, that should be no more dangerous than any other medicine. If my doctor gives me 800mg ibuprofen and I take 10 of them in the morning, he isn't responsible. As it should be for pain killers.
As for addiction sucking, I also already agreed it is a problem, but when I weigh it against innocent people, who didn't make a conscious decision to do something wrong, I find it the lesser of evils to let people make that very bad choice. Do I really need to say I don't have a problem with doctors monitoring patients for addiction? But extreme measures are being taken, not out of an over abundance of caution for patients but because the DEA is throwing doctors in jail.