Captagon

Captagon is the trademarked name of a synthetic central nervous system stimulant, Fenethylline, which is often sold in pill form. Captagon is very popular in some European countries during exam periods. Although it's very effective and by itself not dangerous, it should be used with care. Additionally, it must be noted that it is also abused as a recreational drug. It is legal in several European countries with doctor's prescription (Belgium for example) and illegal in others.