Dependence, addiction and overdose risk
There is limited research on the mephedrone and the risk of dependence, addiction and overdose. A small number of studies have reported that people who use mephedrone often experience strong cravings and the desire to re-dose during drug using sessions.
A study in the United Kingdom reported that 17% of people who have recently used mephedrone experienced symptoms of dependence.
There have been several deaths in the United Kingdom and Europe where Mephedrone has been implicated, however it is not clear whether the cause of these deaths can be conclusively attributed to the use of the drug.