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Class B

Synthetic cathinones

Also called: 4-MMC, Butylone, M-CAT, M1, MC, Magic Crystals, Mdpv, Meow Meow, Mephedrone, Methylone, Monkey Dust, Pyrovalerone

Synthetic cathinones are a group of man-made substances similar to cathinone, which is a naturally occurring stimulant drug found in the plant, khat. They were originally sold over the internet as a ‘legal’ alternative to drugs like speed, ecstasy and cocaine. To avoid trouble with the police, sellers marked the cathinones they were selling as ‘not for human consumption’ and sold them as plant food or bath salts. All these substances are now illegal to supply and possess under UK law.

Mephedrone is the best-known type of synthetic cathinone but there are many more different types. Common slang terms for synthetic cathinones include ‘M-Cat’ or ‘monkey dust’.

In an emergency

If you or someone else needs urgent help after taking drugs or drinking, call 999 for an ambulance. Tell the crew everything you know. It could save their life.Call 999What else to do in an emergency

How does it make you feel?

Synthetic cathinones can make you feel happy, excited and more chatty. They can also make you feel more awake and alert. Some effects are similar to amphetamines (speed) and to MDMA (ecstasy).

These are also some bad effects that might happen, for example, feeling worried or panicky, feeling confused, shaking, headaches. In rare cases they cause hallucinations (seeing or hearing things that are not real), delusions (unrealistic thinking) and fits (seizures). There are many different synthetic cathinones, which makes their effects hard to predict, and some are more risky than others.

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