suggest me a drug

that will keep me focused on programming without any sleep.

>>4
http://en.wikipedia.org/wiki/Dopamine
Attention deficit hyperactivity disorder (ADHD)[7] and restless legs syndrome (RLS)[8][9] are also believed to be associated with decreased dopamine activity.
Schizophrenia has been shown to involve elevated levels of dopamine activity

I.e. while it may help real ADHD patients, it will make you a fucking TDavis-style schizo, obsessed with some crazy idea and unable to switch attention.