Does anyone know anything about GHB? Personal experiences? I have been reading about it on the internet.?

My sister is addicted to it. She is 34 years old. From what I am reading she need serious rehabilitation. She doesn't think so, says she will stop and her boyfriend is in denial. He doesn't believe what is on the internet.

: http://alcoholdrugstreatment.info/does-anyone-know-anything-about-ghb-personal-experiences-i-have-been-reading-about-it-on-the-internet