• Samples with high dosages (Ecstasy: more than 120 mg MDMA; blotter paper: more than 150 μg LSD)

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• Samples containing other psychoactive substances instead of or in addition to the expected substance, thus producing unexpected effects for the user

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• Samples containing two psychoactive substances whose mixture poses a risk of undesirable side effects, but is not acutely harmful to health.

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The risks of using psychoactive substances always depend on you personally, your current state of mind, and your environment. The risk categories we provide are only intended as a general framework for substance warnings. Be sure to pay close attention to the information on safer use, as well as drug, set, and setting considerations. Use drug checking services whenever possible.