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
Carfentanil is roughly 100 times more potent than fentanyl and 10,000 times more potent than morphine
How We Got Here: A Field Guide to the Fentanyl Crisis in Can
44.7% of all opioid-down samples contained a non-fentanyl active ingredient
The Fentanyl Crisis Research Synthesis: Sharpest Evidence fo
Naloxone restores opioid respiratory drive but cannot reverse the xylazine-induced bradycardia and hypotension or the benzodiazepine-induced sedation
How We Got Here: A Field Guide to the Fentanyl Crisis in Can
fentanyl accumulates in membranes near the receptor at concentrations far higher than in surrounding fluid
How We Got Here: A Field Guide to the Fentanyl Crisis in Can
the active dose and the fatal dose are separated by only about a factor of ten
How We Got Here: A Field Guide to the Fentanyl Crisis in Can
These are things people say about fentanyl 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.
"The combined effect of fentanyl, bromazolam, xylazine, and frequently methamphetamine or cocaine contributes to a longer and clinically messier post-naloxone period"
"fentanyl overdoses often require multiple doses of naloxone to reverse"