First image of the tested substance
First image of the tested substance
Second image of the tested substance
First image of the tested substance
Second image of the tested substance
Second image of the tested substance

Active ingredients and content


109.8 mg

unknown substance

Quantity not determinable

Details of the substance tested


4.7 mm

Length x width

12.7 x 7.9 mm



452.2 mg




Fracture groove


Relevant substance(s)

New Psychoactive Substances (NPS)

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Risk assessment

This pill, declared as MDMA, contains a high amount of 4-CMC (4-chloromethcathinone), an unexplored new psychoactive substance. 4-CMC belongs to the cathinone group and is structurally related to mephedrone (4-MMC). 4-CMC is described as having strong performance-enhancing and euphoric effects. Some users report severe headaches, as well as kidney and liver pain on the days after use. It is also reported that the substance can trigger a strong urge to re-dose, which increases the potential for addiction. No information is available on the risks, side effects and long-term consequences of 4-CMC. However, it is suspected that 4-CMC may be very neurotoxic. There are studies of chemically related compounds (4-chloramphetamine) which suggest that 4-CMC could lead to a pronounced and sustained depletion of serotonin stores. Furthermore, an unknown substance was analyzed in the pill, which is most likely a synthesis by-product or reactant.

Completely unknown is the interaction potential between 4-CMC and other substances.

Alert level

Safer Use


Have your substances tested in a Drug Checking


If you do not have the possibility to have substances analyzed, first test a maximum of one third of the pill, since very many high-dose pills are in circulation.

Wait and see

Wait 2 hours after taking the medication, as there are always pills with unexpected active ingredients in circulation, which can have a later onset of action.


Remember: drink non-alcoholic and isotonic drinks (3 dl / hour) and take breaks in the fresh air from time to time to prevent overheating / dehydration.


Accept when the effect runs out, because "re-spiking" increases the toxicity (poisonousness) of MDMA.

Similar warnings

There are no current warnings for this substance

Things to know