I have been snorting methylphenidate in 20mg lines but I took two oral doses of 80mg one two hours after the other, in two hours I took 160mg orally of IR methylphenidate after I was unable to sleep even taking alprazolam 4mg, levomepromazine 100mg, chlorazepate 50mg and zolpidem 50mg. I weak up from the bed of my friend and come to my house where I have snort methylphenidate 20mg. I took an overdose of methylphenidate and was in a state of overstimulation but now I am well but without sleep