Latest reporting
Xylazine Was the Adulterant Everyone Learned to Test For. Medetomidine Is 300 Times Stronger, and the Government Just Defunded the Strips That Catch It
Medetomidine, a veterinary sedative up to 300 times more potent than xylazine, is displacing tranq in the fentanyl supply. Here's the science, the scheduling fight, and why test strips matter more than ever.
The Drug That's Replacing Xylazine Is Already Winning, and Your Test Strip Can't See It
Medetomidine, a veterinary sedative far more potent than xylazine, has displaced xylazine in Philadelphia's drug supply in under two years — and standard test strips don't detect it.
The DEA Gave Kratom Sellers 5 Weeks. Your Corner Store Kratom Isn't What They're Talking About.
The DEA's July 1 order targets concentrated synthetic 7-OH products, not whole-leaf kratom — but the industry, and the people who use kratom to stay off opioids, are bracing for both to get lumped together.
Through eight lenses
Science
Alpha-2 agonists (xylazine, medetomidine — veterinary sedatives), nitazenes as μ-opioid agonists (synthesized in 1950s, never approved, re-emerging), kratom mitragynine partial μ-agonist + alpha-2, tianeptine atypical antidepressant with opioid activity at high doses.
Biology
Xylazine causes necrotic skin ulcers characteristic + prolonged sedation not reversed by naloxone; nitazenes act like high-potency fentanyl analogs (naloxone-reversible, higher dosing may be needed); kratom has its own withdrawal syndrome; tianeptine "gas station heroin" causing emergency-dept surges.
Psychology
Dependence patterns mirror the parent class but often with gaps in clinical recognition.
Policy
DEA scheduling scramble — xylazine FDA-declared emerging threat, nitazene analogs being scheduled piecemeal, kratom DEA deferred twice, tianeptine state-by-state patchwork.
Xylazine Was the Adulterant Everyone Learned to Test For. Medetomidine Is 300 Times Stronger, and the Government Just Defunded the Strips That Catch It
Jul 29The DEA Gave Kratom Sellers 5 Weeks. Your Corner Store Kratom Isn't What They're Talking About.
Jul 25The DEA Started a 30-Day Clock on Banning Concentrated Kratom Extracts. Whole-Leaf Kratom Isn't What's on Trial.
Jul 24
Trends
Xylazine now in 48 states' supply; medetomidine identified in Chicago-area 2024; kratom retail boom.
The Drug That's Replacing Xylazine Is Already Winning, and Your Test Strip Can't See It
Jul 28The DEA Started a 30-Day Clock on Banning Concentrated Kratom Extracts. Whole-Leaf Kratom Isn't What's on Trial.
Jul 24Naloxone Doesn't Touch It: A Veterinary Sedative Is Quietly Taking Over Where Xylazine Left Off
Jul 7
Treatment
Xylazine wound care + opioid co-treatment; nitazene overdose reversal with naloxone; kratom dependence — buprenorphine effective; tianeptine dependence — like opioids.
Harm Reduction
Test strips for xylazine + nitazenes (where available), stay with person during prolonged sedation, don't use alone, high-dose naloxone availability.
Xylazine Was the Adulterant Everyone Learned to Test For. Medetomidine Is 300 Times Stronger, and the Government Just Defunded the Strips That Catch It
Jul 29The Drug That's Replacing Xylazine Is Already Winning, and Your Test Strip Can't See It
Jul 28The DEA Gave Kratom Sellers 5 Weeks. Your Corner Store Kratom Isn't What They're Talking About.
Jul 25