I have some past experience, although my raving days are long gone, just the very occasional spliff nowadays..
It's impossible to gauge it's effects because you can never tell what else is mixed into the pill (unless you have a mate who works for the air ambulance 😆 ) but it's safe to say Ketamine does the following when taken in large doses:
– loss of memory
– loss of speech
– loss of mobility
It was a poor substitute for "clean" ecstacy and wasn't nearly half as fun..
memories eh !!