Is this for realz... Pot Belge

I know cycling has the reputation of being the most dirty pharmalogically dependent sport but I just bumped into the term 'Pot Belge'

[ame]http://en.wikipedia.org/wiki/Pot_Belge[/ame]

Pot Belge is a French term that is used to describe a mixture of drugs illegally used by cyclists. It can be translated as "Belgian mix"
The term is commonly used to describe a mixture of drugs, variously constituted from cocaine, heroin, caffeine, amphetamines, and other analgesics. N.B. the use of the French word "pot" is not a reference to cannabis, and this drug is not normally associated with Pot Belge [1]. A French reference [2] also lists morphine in the mix, and notes that it can also be called "insane person mix," though it's unclear whether this refers to the result, or "that you have to be crazy to take it."
The mixture has become widely associated with the world of pro cycling where it was used for many years, before the institution of highly regulated testing [3]. There are suggestions that its use among amateur participants has been on the increase as both a recreational and a (relatively cheap) performance enhancing drug [4].
The use of Pot Belge became more widely known during the 2006 Bordeaux-based trial following 2004's "Cahors affair"[5]. Several well-known professional cyclists were mentioned during the testimony of defendants

Do people really take this stuff? And a question for any of you that may have experienced the effects of these substances in isolation or combined, do you think it would actually make you faster on a bike?