The real-life equivalent to Vitura from Arrow

Update: I stand corrected. This is a WiFi interface that can be injected into your brain. I promise you they already mapped the brain and started designing apps to control your brain… Scientists Just Invented the Neural Lace

Neuralink from Elon Musk is the next level of this.

Original Answer: Scopolamine, though it obviously won’t work exactly like in Arrow, because that’s a fictional TV show.  ‘Devil’s breath’ aka scopolamine: can it really zombify you?

You won’t be able to find this stuff easily, but it is known as one of the world’s first truth serums. It’s pretty similar to a roofie in that it more incapacitates you and causes amnesia than truly turning you into some kind of robot slave.