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by Erowid
Caution :   Reactions and experiences may vary dramatically from person to person. [see below]
4-Methylmethcathinone Duration
Total Duration
2 - 5 hrs
15 - 45 mins
Coming Up
15 - 30 mins
15 - 30 mins
Coming Down
30 - 90 mins
After Effects
2 - 4 hrs
Hangover / Day After
- - -
  • mental and physical stimulation
  • euphoria, mood lift
  • feelings of empathy, openness
  • increase in sociability, desire to talk with others
  • pleasurable rushing
  • general change in consciousness (as with most psychoactives)
  • decreased appetite
  • pupil dilation
  • unusual body sensations (facial flushing, chills, goosebumps, body energy)
  • change in body temperature regulation
  • sweating
  • increase in heart rate and blood pressure
    (likelihood of negative side effects increases with higher doses)
  • strong desire to redose, craving to recapture initial euphoric rush
  • uncomfortable changes in body temperature (sweating/chills)
  • heart palpitations, sense of racing heart
  • impaired short term memory
  • insomnia
  • tightened jaw muscles, grinding teeth (trismus and bruxia)
  • muscle twitching
  • nystagmus
  • dizziness, light headedness, vertigo
  • a couple of reports include serious vasoconstriction
  • when insufflated: pain and swelling in nose and throat, sinusitis
General Effects Notes
The effects of 4-methylmethcathinone are often compared to those of MDMA, MBDB, bk-MDMA (methylone), cocaine, methamphetamine and other euphoric stimulants.

4-methylmethcathinone does not include substantial psychedelic visual effects and is perhaps best known for its euphoric effects and reports of compulsive redosing.

Routes of Administration
As with other psychoactives, oral 4-methylmethcathinone ingestion takes slightly longer to cause effects and lasts longer. Insufflation (snorting) is more associated with compulsive / addictive use patterns. Smoking 4-methylmethcathinone is not commonly reported.

Addiction and Compulsive Use
Initial reports suggested that 4-methylmethcathinone was a "non-addictive" alternative to methamphetamine, cocaine, and other stimulants, but there is increasing evidence that it causes compulsive use patterns that are similar to or stronger than those of other recreational euphoric stimulants. It is unlikely to be physically addictive, meaning that withdrawal symptoms are minimal and likely not life threatening, but psychological addiction in some users seems likely to be a problem with this substance.

"[...] [W]e simply kept going until there was nothing left. This is, according to me, the biggest danger with this drug; one doesn't seem to realize or even notice when one has crossed the line, until it's too late." -- Exp 76345
"A very nice substance for me overall. My elocution was remarkably enhanced, communicative centers were gaping wide, very comfortable and relaxed stimulation, empathy was significant (even though the 'magic' has long since departed my MDMA experiences). Comedown was not painful, just so swift it left a vacuum in its wake. I overindulged in MDMA when I was first introduced to it, and now I may as well have three caffeine drinks as take a pill. This substance feels (for me) like its effects could be similarly degraded with over-use. I'll be abstaining as much as my will permits. " -- Exp 78080
"Compared to MDMA, similar euphoria (when bombed [swallowed]), far more hornyness, a bit less empathy, no psychadelia (although light tends to prism after several redoses, I think this is just a serotonin effect) - but what was amazing is that the next day, I felt brilliant, like I hadn't done anything the previous night. I would also compare it to speed and coke a little in its stimulating effects, which were far more than MDMA on its own. [...] The euphoria was absolutely crazy. I looked in the mirror, my eyes were saucers. I felt giddy from how amazing I felt. Stroking my arm was like having an orgasm. It was about as mindblowing as my first 'e'." -- Exp 74276
"I feel very similar to my first ever ecstasy pill. Feel a little bit disappointed that I've peaked and am now contemplating trying a little line intranasaly. I say why they say this is like Cocaine. It is VERY moreish. [...] I believe Mephedrone has overtaken MDMA as my favorite drug. This is something that I never thought possible. The only noticable down side for me was the short duration of action and a binge seems VERY likely if I had a large supply so I'll have to keep the amount I have on me pretty low. The euphoria was amazing, the empathy was great ( I had an overwhelming urge to phone ALL of my friends to have a little chat) and the mild stimulation was perfect, not too much, not too little, just right, making me feel just as comfortable having a little dance in my room as I was sat at the computer listening to music." -- Exp 77208
"The first dose was pleasurable, but overall I regret buying such a large quantity. If there was magic here, I certainly lost it over the course of a couple of days. Worryingly, it was much more acutely psychologically addicting than MDMA/MDMA adulterated with methamphetamine, Bk-MBDB and the various piperazine combinations I've had (though I will certainly place my satisfaction with this above that of those nasty pipes or of Bk-MBDB!). Hell, I felt more like doing this the next day than I felt like getting to my cocaine, and that's even after having a bad experience." -- Exp 78758
"[M]ephedrone really disappointed me. The initial come-up rush led me on to thinking I had stumbled upon something very special - then it dropped off. [...] It seems that few reports from Erowid and afar have mentioned a lack of euphoria, so it just goes to show that chemicals affect people uniquely. [...] At no point was I compelled to take more mephedrone, despite its reputation of being moreish." -- Exp 77309
"Mephedrone Is a nice drug, the euphoria I experienced was extremely pleasurable and from what I remember I had a great time. Mixing Mephedrone with alcohol was a very bad idea I experienced a great deal of memory loss and this is not something that usually happens to me and the nausea of today is unbearable." -- Exp 76757
Erowid's effects information is a summary of data gathered from users, research, and other resources. This information is intended to describe the range of effects people report experiencing. Effects may vary dramatically from one person to another or one experience to another based on a variety of factors such as body chemistry, age, gender, physical health, dose, form of material, etc.