Do your homework, fuck. You can buy kits to test drugs for purity on those same black markets. It's playing with fire, use your judgment.

I would say fentanyl sounds disgusting, but OxyContin is even worse, because at least fentanyl you're not being tortured for ten hours a day. The dealer isn't gaslighting you about dosage. There are opioids that strong and there are like jeweler's scales you can use to mete them out.

So in particular I never had an interest in hard street drugs, just sounded highly unattractive. Like falling into a black hole. To feel happy? Come on.