Just recently I have begun to look into Ethylphenidate, now I'm curious as to whether or not it would show up on an advanced lab urine test, I'm aware of the fact that this chem is related to Methylphenidate which I am 98% sure shows up on advanced urine tests which is why my curiousity has sparked. Let me just say that this RC honestly looks wonderful aside from its corrosive nature and high addiction potential.