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Ten years ago today, The Loop introduced drug checking in the UK, at Secret Garden Party and Kendal Calling festivals.
@KendalCalling
On Saturday, we are #drugchecking in #Bristol.
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After~1 hour, we have results & can give honest advice.
Want to deepen your understanding of ketamine beyond the basics?
Join The Loop for an above-entry-level course informed by frontline experience of drug use, drug markets and harm reduction, including discussion of acute and chronic risks.
Book: tinyurl.com/yhtc62e9
The Loop London drug checking service tested an orange Trump pill: the acquisition intent of the surrendered pill was MDMA and testing found that the pill contained 4-CMC, caffeine and MDMA.
Be cautious when redosing: taking more may increase the risk of unwanted effects.
Want to deepen your understanding of MDMA beyond the basics?
Join The Loop for an above-entry-level course informed by frontline experience of drug use, drug markets and harm reduction.
20 Oct / 18:00-21:30 BST / £34
Book: tinyurl.com/yvprn5ze
On Saturday, we are drug checking in #Hackney.
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…
Our testing has continued across events in 2026. We can see considerable variation in strength, which is consistently seen across other pill presses and reinforces the value of drug testing, as appearance alone cannot indicate strength.
#GoSlowStayLow #TakeQuarterSipWater
Sharing this latest warning from #TEDI Network, of which The Loop is a member.
PMMA has been detected in pills sold as MDMA across 7 European countries.
Our UK drug checking and testing continues to monitor substances of concern here.
More: tedinetwork.org/warnings
This Saturday, we are drug checking in #Camden
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After ~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…
Want to better understand chemsex, sexualised drug use and associated harms?
Join a training informed by frontline experience across drug use, sexual health and harm reduction, with practical support for people working where sex and drug use intersect.
➡️tinyurl.com/yc4e7zr6
This Thursday, we are drug checking in #Ealing
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After ~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…
Watch Prof Fiona Measham, founder of The Loop, in her recent full BBC Breakfast interview on synthetic opioids, drug adulteration and emerging risks in the UK drug market.
The Loop welcomes the next step for drug checking in Scotland, with Glasgow’s first service due to open on 5 October.
We look forward to working with colleagues in Glasgow and @TheGDAS in Wales as the UK drug checking network continues to grow.
We joined BDP’s The Drop at Bristol Freshers Week, speaking with students about drug checking and harm reduction.
Our Bristol service is back Sat 26 Sept, 12–8pm, last surrender 7pm.
wearetheloop.org/drug-checki…
On Saturday, we are drug checking in #Bristol
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After ~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…
Founder Prof Fiona Measham joined BBC Breakfast this morning, calling for greater access to drug checking, post-mortem testing and naloxone in response to growing concerns around synthetic opioids in the UK drug market.
Watch from 1:26:45:
bbc.co.uk/iplayer/episode/m0… @BBCBreakfast
Join The Loop on 23 Sept for training exploring rapidly evolving drug trends in depth, including current UK and international drug market data, effects, risks and harm reduction approaches.
Book via Eventbrite: tinyurl.com/4c6xh7vu
On Saturday, we are drug checking in #Hackney.
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…
What’s changing in the UK drug market in 2026?
Join The Loop online on 15 Sept for evidence on current trends, price & purity, published drug checking findings, novel synthetic opioids, high-strength MDMA and more.
Book via Eventbrite:
tinyurl.com/yvprn5ze
This Saturday, we are drug checking in #Camden
How does it work?
1. Surrender a substance
2. Tell us what you think it is & about your drug use
3. We do lab tests inc. a test for synthetic opioids
4. After ~1 hour, we have results & can give honest advice
wearetheloop.org/drug-checki…





















