I would just add that the tobacco products directive separates products. Those that contain nicotine of up to 20 milligrams per millilitre would be regulated under the tobacco control legislation. For those that go over 20 milligrams per millilitre of nicotine, the recommendation is that they should be regulated as medicinal products. That's according to the tobacco products directive.
On October 28th, 2014. See this statement in context.