That’s a very effective but highly controlled substance.
My introduction to Xyrem was via a simple statement: “Sometimes people sleep but don’t get rested. Those people can take gamma hydroxybutyrate, which is found in passionfruit.” I haven’t found any confirmation of passionfruit having this substance. I got a friend some passionflower tea, and she found it remarkably effective for helping her drift off to sleep.
It’s a safe simple compound, easy to synthesize with lab chemicals. But it also has nefarious uses, so it got scheduled.
“Sodium oxybate is the sodium salt of γ-hydroxybutyric acid (GHB).”