Real coca leaves? I don't think so, whole plant is banned basically everywhere apart from few places in South america. Unless you mean something altered that has no real cocaine alkaloid, like drinks with marihuana 'extracts' / seeds that contain 0% THC.

Not that I agree with this, had my share of teas and chew in Bolivia (with what locals called 'activator', at least thats how miners did it in Potosi), apart from local lack of sense in gum/jaw there wasn't any real effect... no more than a regular coffee (which doesn't have any tangible effect on me, but I enjoy the taste & ritual).

But from plant you can make cocaine, so I get the logic. Funny thing is, some botanical gardens in Europe have the plant, not marked in any obvious way apart from latin name. I can confirm that it contained alkaloid, the numbing gum sensation was quite strong.