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4-Methylethcathinone (4-MEC)
by Erowid
Caution :   Reactions and experiences may vary dramatically from person to person. [see below]
4-Methylethcathinone 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
- - -
4-Methylethcathinone Duration
Total Duration
2 - 3 hrs
5 mins
Coming Up
5 - 10 mins
10 - 60 mins
Coming Down
45 - 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
  • spaced out, relaxed feeling
  • increased appreciation of music
  • 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
  • nystagmus
  • tremor
    (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
  • when insufflated: pain and swelling in nose and throat, sinusitis, nasal bleeding
General Effects Notes
The effects of 4-methylethcathinone are often compared to those of 4-methylmethcathinone (mephedrone), with less euphoria.

Routes of Administration
As with other psychoactives, oral 4-methylethcathinone ingestion takes slightly longer to cause effects and lasts longer. Insufflation (snorting) is more associated with compulsive / addictive use patterns.

Addiction and Compulsive Use
As with 4-methylmethcathinone, compulsive use patterns that are similar to or stronger than those of other recreational euphoric stimulants have been reported. 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.

"[repeated bumps, insufflated] The stimulant hit me as a new sense of vigor, cutting through the hot summer heat and pulsating in my body with life and wakefulness. It was definitely a stimulant, it's empathogenic powers would be untested in the solo voyage that was to come. It was clean, strong and most-importantly altered my waking reality with a brief boost of virility. [...] My sense of time slowed, my mind was sharp and agile. [...] It inspired a strong desire to redose." -- Exp 91335
"[~60 mg, insufflated] mmmm, feel so good - music sounds incredible, extreme pleasure, rushes to the body, feel a pleasant detachment from reality. [...] I am breathing as slowly and deeply as I ever do, like the most deep breathing I have done during neurofeedback to learn deep relaxation. This is happening automatically, effortlessly, as my body and mind tingle with pleasure and relaxation. I measure my pulse and it is slightly elevated, but only a tiny bit above normal." Exp 91730
"[50 mg, insufflated] Feeling full effects of my 50mg line, I decide to take another half point bump to get things going. Once again, nothing extraordinary or unique, feels like mephedrone without the intense euphoric edge. Talking is easier and I can barely sit still. Increase in appreciation for music but nothing too incredible is noted." -- Exp 90453
"[repeated lines, insufflated] It invariably started out as "just a line" of 100-200 mg and ended up as a 6-14 hour binge. This ended, hopefully, the other night when I realized that I was no longer acting as if I was in control of my actions. I was binging every other day, when possible, and whatever limits I had set for myself ahead of time I was ignoring completely." -- Exp 92333
"[200 mg, insufflated] +50:00 feel total sober, forehead sweating [...] feeling slothlike [...] very unhappy not feeling any high / euphoria [...] can hear my breathing very clearly and heartbeat [...] read posting that 4-MEC is "MDMA ULTRALITE" I would say super featherweight ultralite, great for meditation but not get stimulant high / rush [...] come to conclusion very UNstimulant high, closest feeling was lite drunk buzz / tired." -- Exp 91913
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.