3-Methylmethcathinone, also known as 3-MMC and 3-mephedrone,is a designer drug from the substituted cathinone family. 3-MMC is closely related in structure to the more common illicit drug mephedrone (4-MMC), and is illegal in most countries that have banned mephedrone as it is a structural isomer of it. However, 3-MMC has still appeared on the recreational drug market as an alternative to mephedrone, and was first identified being sold in Sweden in 2012.Unlike other legal highs 3-MMC was tested and characterized in large mammals,providing much more knowledge about it than is known about other synthetic cathinones.
Most users of NPS in Slovenia have tried NPS from the groups of synthetic cathinones and amphetamines. Most respondents included in the sample (67.9%) have tried 3-MMC, while 43.0% have tried methylone and 37.3% have tried mephedrone (4-MMC). Users attributed greater risks to the use of new drugs and preferred the effects of traditional drugs to those of new drugs. The most frequently reported problems were depression (55.2% of users), concentration difficulties (44.0%), damage to the mucous membrane of the nose and to the throat (39.8%), feelings of fear and anxiety (39.4%), and tingling in the arms or legs (34.4%). The main reasons for cutting down or discontinuing the use of NPS were ‘fear of the health consequences’, ‘actual health consequences’, and ‘growing weary of using’. Among users of NPS, 7% have sought help, while 9.1% have considered doing so. The results also highlight differences between the NPS drug markets in Slovenia and the United Kingdom.