Do you treat a patient who stumbles into an ER in a drug induced stupor?
The same as you'd treat a patient who is in an alcohol induced stupor.

What if the "customer" asks for enough drugs to kill themselves? Do you sell it to him?
Damn straight. He might just be stocking up for a big party.

Also, cigarettes seem to run a course where society condemns them, and then some "rebel" smokes one in a PR-event, and then they're cool all over again to the youth.
The cigarette manufacturers depend upon this "rebel" element for new smokers. And peer pressure from the "rebels".

The only problem I have with that is that the cigarette producers have been working at making their products MORE addictive so that these kids will stay hooked.

Like whether or not they are refused medical treatment in the ER if they OD.
Treat them the same as with alcohol or tobacco.

Like what you do with pregnant moms on crack and their kids.
Fetal Alcohol Syndrome. I'm not sure what the name is for kids of heavy smokers. We can't make moms any smarter and we can't stop them from damaging their children unless we treat them as breading machines.

Sometimes, freedom sucks.

I'm all for rehab, but I want Dr. Phil rehab (like time in the ER managing drug addicts and watching people die from drugs and guns ), not some pansy wanzy group therapy.
I don't think that will work, either. Addiction is complex. It involves the body, the mind and the environment. The best I think we can hope for is to weed out the people who turn to crime to support their addiction (body, mind, environment and ethics).

Then again, if I were king for a year or two, prisoners would be picking cotton, pounding rocks, and the death row guys would be on the ground in Iraq as "front line soldiers" for our military invasion, provided they were not insane.
Security is the only problem with the chain gang. Giving weapons to death row isn't a great idea, in my opinion. :)

Addicts get to buy drugs, but the hospital is not allowed to revive them if they O.D.
I'd let them revive them. Either it will turn them around or they'll do it again. Eventually, the aid unit won't make it in time.

If a drug addict kills someone or commits a crime of robbery or higher while high (accidental or on-purpose), they get the death penalty.
I'd rather see more years tacked on (assuming they're found guilty) rather than death. Lots of kids do the "joy-riding" thing while drunk.