QFT.
Narcan is great for bringing people back, but it's just one more consequence for bad behavior that's been eliminated. No consequences = more bad behavior.
Just thought I'd add my own two cents worth here.
Narcan (naloxone) is a great drug and I've saved a lot of lives with it - but it does have some issues. Here are some of the problems I've experienced, seen firsthand, or had to look into as a supervisor:
1. Narcan can wake a patient. And depending on their attitude, they could get ticked off that you just ruined their hundred-dollar high - and want to fight about it!
2. Additional ill-informed decisions on the patient's part are not unknown - like jumping out the back of a moving ambulance!

3. Depending on the patient's level of dependency on narcotics, giving too much Narcan too fast could leave the patient in withdrawal, with all of the associated problems that entails (including possible seizures, tremors, hallucinations, etc.).
Here are a few additional facts about the use of Narcan:
1. If the patient is enjoying a "mixed overdose", remember that Narcan will only work on any narcotics/opiates they may have taken. It will do nothing for that fifth of tequila they also drank, so you may still have more work to do...

2. Depending on the patient's metabolism, Narcan has a therapeutic half-life of roughly 8-20 minutes. Translation - they still need to get taken to the hospital and DON'T LET THEM DRIVE!
3. Our EMS protocols for Narcan administration was "Titrate to respiratory effort only". In other words, we gave it in small increments and monitored the patients breathing. We STOPPED giving it when the patient was breathing adequately on their own, but NOT YET AWAKE. This was to limit the issues listed above.

4. And from a legal perspective, a patient who was revived with Narcan still has enough narcotics in their system to be considered impaired and cannot deliver informed consent. If they argue with you once they are awake, just wait 8-20 minutes...
