Mephedrone (sometimes called ‘meow meow’) is a powerful stimulant. 

The main effects and risks of mephedrone include euphoria, alertness and feelings of affection towards the people  around you, but you can also have feelings of anxiety and paranoia.

Mephedrone, or meow meow, can also overstimulate your heart and circulation; and can overstimulate your nervous system, with risk of fits.

Also known as: White Magic, Miaow, Meph, Meow Meow, MC, M-Smack, M-Cat, Charge, Bubble, Bounce, 4-MMC


Mephadrone is a Class B drug – it’s illegal to have for yourself, give away or sell. Possession is illegal whatever you’re using it for, including pain relief.

Supplying your mates, even if you give it away, is also considered ‘supplying’ under the law.

If the Police catch you with Mephadrone you could be arrested, have a formal caution, a  penalty notice  and a possible conviction.

A conviction for a drug-related offence could have a pretty serious impact. It can stop you visiting certain countries – for example the United States – and limit the types of jobs you can apply for.




Affects the heart and circulation, causing cold/blue fingers

Can cause nose bleeds.

Can result in death.

Can cause body to overheat.


Injecting is more dangerous as mephedrone can be just 50% pure.

Injecting can damage the veins and cause abscesses.

Viral hepatitis & HIV/AIDS infections can be spread by sharing needles.

Can be very dangerous when mixed with other drugs.