Drug Purity Report Week 33, 2026

Drug Purity Report #33/26. Welcome to “last week on drugs”, a new blog post series by PRO Test dedicated to reporting on drug market purity. Since last week we have seen doppleganger Ecstasy pills, pills with more than 1 stimulant, and a continued diversity among cathinone samples. 

Data fatigue is real, so here we come to give you the gist of what’s going on out there. For more details, photos, and other information on thousands of drugs, head out straight to the DrugsPRO app.

• Doppleganger Ecstasy pills
  • Every pill should always be considered as different, as illustrated by most recent red TikTok and blue Punisher pills found in Austria. With half of the samples containing MDMA, and the other half caffeine, the risk of possible overdose increases exponentially. A weak effect (caffeine pill) can encourage person using it to ingest more and overestimate their tolerance.
• Multi-stimulant pills
  
  • Pills with both MDMA and caffeine were found in Austria, yet another kind of blue Punisher pressies. MDMA with amphetamine was found in a round orange pill in Innsbruck, and a Donkey Kong pill with NEP mixed with unknown compound was found in Slovenia, after recent detections in other countries throughout the region. 
• Cathinone diversity
  • As reported in the previous weeks, 4-MMC is increasingly rare and replacements are still all over the place. Those include from 3-CMC, 4-CMC, 2-MMC, 3-MMC, 4-BMC, NEP, with also Ethylpentylone, also known as ephylone or bk-EBDP, found this week.

Last Week at a Glance

• 206 samples from 6 countries (Austria, France, Germany, Slovenia, Spain and Switzerland) were included this week.
• 161 samples contained a quantified result, including 67 pills and 5 LSD samples.
• 83 samples contained more than one detected ingredient.
• LSD median purity/content is 164µg, compared with 69µg in the yearly reference period.

Key Purity Differences

• LSD median purity/content is 164µg, compared with 69µg in the yearly reference period.
• Amphetamine median purity/content is 10%, compared with 38% in the yearly reference period.
• Mephedrone median purity/content is 63%, compared with 88% in the yearly reference period.

Purity and Content

Median quantified results for 10–16 August 2026. The yearly reference is shown in parentheses where sufficient comparison data is available.

How to read this: Bold = this week’s median (typical) result; “Middle 50%” = half of the results; (*) = median from the last 365 days; ▲/▼ = higher/lower than last week.

Most Common Adulterants and Other Impurities

Across the last 365 days, 1,663 mixed samples contained 127 distinct additional ingredients.

▲/▼ shows whether its share in the rolling 365-day data increased or decreased since last week. No arrow means no change or no comparison.

Impurities Detected This Week

MDMA: 2C-B (2), 4-MMC (2), Amphetamine (1), Caffeine (4), DMXE (2), Ketamine (2), N- (2), Unknown (2)

Amphetamine: 1-PEA (2), Caffeine (30), Cocaine (4), DPIA (2), MDMA (1), Unknown (1)

Cocaine: Amphetamine (4), Caffeine (8), Ketamine (2), Levamisole (12), Lidocaine (2), Phenacetin (4), Procaine (6), Unknown (1)

Ketamine: 2C-B (2), Cocaine (2), MDMA (2), Phenacetin (2)

2C substances: Ketamine (2), L-Glutamine (1), MDMA (2), Unknown (2)

LSD: iso-LSD (2)

Mephedrone: MDMA (2), NEP (2), Other (3)

Heroin: Caffeine (1), Unknown (1)

Remaining detected substances: 2-MMC (7), 3-CMC (6), 3-Me-PCP (1), 4-BMC (1), 4-CMC (17), aMT (2), Caffeine (6), Deschloro-N-Ethylketamin (2), Ethylpentedron (2), GHB (2), Levamisole (2), NEP (5), No Psychoactive Substance Detected (2), Paracetamol (1), Procaine (3), Tapentadol (1), Unknown (7)

Data Sources

This report is based on drug-checking data published by: (Bern, (Lausanne) École des sciences criminelles (ESC), (Luzern, (Zürich) Reseachem GmbH, addiction-neuchatel.ch, Basel) IRM Basel, Biel) Pharmazeutischen Kontrolllabor Bern, checkit.wien, contact-suchthilfe.ch, DIZ / Saferparty, drogart.org, drogenarbeitz6.at, drugchecking.berlin, drugchecking.ch, druglab.fr, energycontrol.org, knowyourstuff.nz, nightlifevaud.ch, nuit-blanche.ch, raveitsafe.ch, saferdancebasel.ch, saferparty.ch, tragwerk-luzern.ch, Trimbos, Université Lausanne, wedinos.wales.

All of this data is available at your fingertips in the DrugsPRO app for Android, iOS, and the web.

Drug-checking results describe tested samples only and are not representative of the entire market.