While, I would still consider myself still quite feeling it.. Maybe not tripping anymore, depends on your opinion. I took 17mg orally at 8:03 PM, started really feeling it at 11 PM, now 18 hours later.. No way I can fucking sleep, all I could keep thinking was how this is by far the long lasting chemical I have ever used. Shit, I thought LSD lasted long.. This shit is unrelentless, the first 5 hours was probably the best experience of my the life, the following 15... Not so much, never felt this physically tired, yet not feel like I can sleep.. Will write a long detailed trip report when I can think again (I think I am going to be sleeping for 2 days)