FILE ON TORONTO DRUG CHECKING SERVICECompany

Toronto Drug Checking Service

The Toronto Drug Checking Service finds xylazine in roughly 10% of fentanyl samples1. The Toronto Drug Checking Service (Centre on Drug Policy Evaluation, University of Toronto / St. Michael's) collected biweekly sample data from 2025–2026.2.

3 SOURCES · 3 DOCUMENTED FACTS · 1 DISPUTED · OPENED 2026-07-24 · UPDATED 2026-07-24
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The Toronto Drug Checking Service finds xylazine in roughly 10% of fentanyl samples

How We Got Here: A Field Guide to the Fentanyl Crisis in Can
“The Toronto Drug Checking Service finds xylazine in roughly 10% of fentanyl samples”
VERIFIED — a word-for-word match in the stored source

The Toronto Drug Checking Service (Centre on Drug Policy Evaluation, University of Toronto / St. Michael's) collected biweekly sample data from 2025–2026.

The Fentanyl Crisis Research Synthesis: Sharpest Evidence fo
“Toronto Drug Checking Service (Centre on Drug Policy Evaluation, University of Toronto / St. Michael's), 2025–2026 sample data”
VERIFIED — a word-for-word match in the stored source

In February 2025, 35% of expected fentanyl samples contained a benzodiazepine.

The Fentanyl Crisis Research Synthesis: Sharpest Evidence fo
“February 8–21, 2025 (n=184): **35%** of expected fentanyl samples contained a benzodiazepine”
VERIFIED — a word-for-word match in the stored source
Disputed — who says what, against what see standalone →

These are things people say about Toronto Drug Checking Service that aren't settled fact — each one attributed to who's actually claiming it, so a claim never quietly passes as established just because it showed up in a document. Weigh it yourself.

Disputed
"The surveillance system was decapitated at the moment the supply got worse."
Unattributed assertion · stance: neutral
Not yet independently weighed — one source's claim, unconfirmed elsewhere.
The Fentanyl Crisis Research Synthesis: Sharpest Evidence fo ↗
2025
April 2025
Closure of five sites hosting the drug-checking service
People
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