Los Angeles County confirms cychlorphine after February 2026 death
Los Angeles County reported its first confirmation of cychlorphine in the local illicit drug supply after a fatal overdose. The opioid is more potent than fentanyl, can stop breathing and cannot be detected by fentanyl test strips.
The Los Angeles County Medical Examiner identified cychlorphine as a cause of a death that occurred in February 2026. Public Health says the fatality is the first confirmation of the drug in the local illicit drug supply.
Why it matters: Cychlorphine is being mixed into illicit drugs without users knowing, and fentanyl test strips cannot detect it.
Cychlorphine is an opioid more potent than fentanyl. A very small amount can slow or stop breathing and cause death. Fentanyl test strips cannot detect it. The drug is being mixed into illicit drugs without users knowing.
Public Health says avoiding illicit substances is safest. People who use drugs should not use alone and should carry naloxone. Start with a small amount and go slowly. Do not combine opioids with alcohol, sedatives or sleeping medication. For an overdose, call 911 and give naloxone; multiple doses may be needed. Naloxone nasal spray is available at county health locations, pharmacies and through medical providers.
Drug samples can be tested free for cychlorphine in about 15-20 minutes through drugcheckingla.com. Public Health is monitoring how common the drug is in Los Angeles County’s illicit drug supply.
What’s next: Public Health is monitoring how common cychlorphine is in Los Angeles County’s illicit drug supply.
Staff
Key facts
- County confirmation
- First in the local illicit drug supply
- Fatality
- February 2026
- Risk
- More potent than fentanyl; test strips cannot detect it
- Drug testing
- Free; about 15-20 minutes
Sources used
- LA County Public HealthOfficial page for “LA County Public Health” (opens in a new tab)
Every claim checked against these records and approved by Abhishek Chopde. How we verify
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