Drone, meow meow, 4-MMC, white magic, M-CAT, bubble


Mephedrone or 4-MMC (4-methylmethcathinone) produces a strong stimulant effect. The drug belongs to the synthetic cathinones, a subset of amphetamines. Mephedrone is mainly sold as a white crystal or powder but is also available in capsules. The effect is strongly uplifting with mind-altering effects, often described as a mix of MDMA and cocaine. Others compare it to 3-MMC but with heightened euphoric effects. Mephedrone often produces a “nagging” hangover, similar to an ecstasy dip. After use, there may be a strong urge to use again.


Delivery method

Swallowing (pill/bomb), snorting, booty bumping, slamming.

Physical effects

Increased blood pressure, heart rate and body temperature.

Desired effects

Dependent on dosage, delivery method and frequency.

  • Physical: increased energy, physical tingling, delayed ejaculation, prolonged intensified orgasm, enhanced bodily stimuli and sensations.
  • Mental: connection, openness, well-being, empathy, affection, talkativeness, thought acceleration, disinhibition, euphoria, excitement, horniness, time distortion, self-confidence, feeling physically strong.


Dependent on dosage, frequency and situation

  • Physical: overheating, excessive sweating, headache, teeth grinding, extremely high blood pressure, long-lasting accelerated heart rate, palpitations, nausea, chest pain, blurred vision, dizziness, blue and cold limbs, nosebleeds (when snorting), erectile dysfunction, cardiac arrhythmia, seizures, oxygen deficiency in the brain.
  • Mental: lethargy, gloominess, irritability, insomnia, agitation, aggression, loss of control, concentration problems, depression after use, hallucinations, paranoia, anxiety.

Long-term effects

Mephedrone is a relatively new drug which has not been researched much. Known so far: strong mental dependence, increased risk of brain damage, depression, psychosis and severe weight loss.

Tips for use

  • Have your mephedrone tested freely and anonymously at a testing service near you.
  • Make sure you are fit and mentally stable when using. Mephedrone depletes your mental and physical reserves.
  • Eat a healthy diet and take plenty of antioxidants. Stimulants such as mephedrone cause increased oxidative stress, causing brain cells to experience continuous stress. Antioxidants reduce this effect. Take supplements with antioxidants and vitamins before and after use.
  • Mephedrone suppresses the feeling of hunger. Try to eat small portions regularly, preferably with enough salt, a yoghurt drink, a protein shake or a smoothie.
  • Drink water regularly. One glass per hour is sufficient.
  • Pay attention to your body temperature and avoid overheating. Find somewhere to cool down now and then.
  • Do not use mephedrone in traffic, as it impairs your reflexes.
  • There is still very little known about the long-term effects and risks. Be aware that you are your own guinea pig.
  • Always start with a low dose. Wait at least an hour and a half before taking more.
  • Avoid combining with other uppers such as ecstasy, crystal meth, speed, cocaine or 3-MMC.
  • Mephedrone increases blood pressure. Avoid using mephedrone if you have cardiovascular problems.
  • Do not use during pregnancy. Mephedrone is harmful to your unborn child.