U mean TRIBE? With Bruce parry?

It can last 3 days if u injest enought. Its a trip that explores your life and all the bad you've done with it and helps you move on in life.

Its called Ibogaine comes from the African Tabernanthe iboga root. Its used to treat herion / opiate addicts.

see it on http://www.erowid.org/chemicals/ibogaine/ibogaine.shtml