Written by:
Medically Reviewed by:
Last Updated:
February 14th, 2025
Mephedrone addiction
What is mephedrone?
Mephedrone, sometimes called “meow meow” or “MCAT,” is a synthetic stimulant that belongs to the cathinone family. It was initially popular in the party and clubbing scenes due to its energising and euphoric effects. However, its risks quickly became apparent, and it is now classified as a Class B drug in the UK, making its use and possession illegal.
Often compared to MDMA and methamphetamine, mephedrone’s short-lived highs come with potentially severe physical and mental consequences, leaving many unaware of the dangers until it’s too late.
How does mephedrone affect your body?
Mephedrone works by increasing the levels of dopamine and serotonin in the brain, creating intense feelings of euphoria, sociability and energy. Users may feel a heightened sense of confidence and alertness, often leading to prolonged periods of activity without rest.
While the effects might feel enjoyable initially, the risks quickly outweigh the rewards. Physical side effects often include increased heart rate, teeth grinding, excessive sweating and overheating. Over time, these impacts can strain the heart and nervous system, leading to long-term health issues.
Additionally, the crash (often known as a comedown) after using mephedrone is harsh, leaving users with extreme fatigue, low mood and cravings for more.