Mephedrone became a class B drug, the same as speed or But despite the ban and the risk of up to 14 years in prison for supplying it, dealers are still offering large amounts of the drug on websites.A BBC Radio 5 live investigation found websites offering “designer drugs” including mephedrone, with some even offering free samples to new customers. After the ban was introduced, some websites closed down while others rebranded themselves as selling compounds they called Research Chemicals – but are actually drugs with names like Benzo Fury, Jolly Bomb Caps and Green Genie Kryptonite. So far these new compounds have not been made illegal. Meanwhile drug dealers are also moving into the supply of mephedrone in the hope of offering casual users supplies of more addictive drugs like cocaine.