I do agree with the overdose potential. I overdosed 6 times on this RC because i kept redosing too soon. Narcan worked, obviously, but it's not detected on any drug tests, making it ideal for people on probation or take frequent drug tests. The physical dependency is very quick, the withdrawals last an average of 72 hours but they're horrible. My tolerance became so high i would fall asleep for an hour and wake up in withdrawal. Also once you start taking high doses, nasty side effects occur. Due to hitting kappa receptors it really messes with your sleep. I was too afraid to sleep because i would have vivid nightmares that i would feel physical pain. Creepy stuff. Please tread with caution.