Mephedrone is the common name for 4-methylmethcathinone, a manmade, illegal stimulant sometimes found in the designer drug preparations known in popular culture as “bath salts.” Along with a variety of other active ingredients found in these preparations, such as MDPV and butylone, it belongs to a chemically related group of mind-altering drugs called synthetic cathinones. In addition to its use in “bath salts,” mephedrone is also sometimes used on its own as an intravenous (IV) drug. Mephedrone abuse can trigger a number of unpleasant or dangerous short-term side effects, and may also lead to long-term or permanent changes in the user’s mood and normal memory function.

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