Urgent Warning Issued Over New Potent Opioid in Los Angeles

Health officials in Los Angeles have sounded the alarm regarding an opioid that is significantly stronger than fentanyl—ten times more powerful, in fact—after it was linked to its first death in LA County.

The LA Department of Public Health reported that a fatal overdose in February has been associated with cychlorphine, a synthetic opioid similar to fentanyl and heroin, which poses a serious threat due to its potency.

Officials are particularly concerned about the drug’s extreme strength, which can prove lethal even in minuscule amounts.

Earlier in April, health authorities in San Francisco also reported a death tied to this substance, marking its first identification in the city.

What’s alarming is that cychlorphine is being mixed into the illegal drug supply without users’ knowledge. Current fentanyl testing strips are unable to detect this new opioid, which raises serious concerns.

This powerful substance has been part of the U.S. drug scene since 2024 and has been identified in 19 states.

Moreover, it’s important to know that cychlorphine isn’t limited to just pills. It can be found in various forms—liquids, crystals, powders, and fake tablets mimicking prescription drugs—making it quite challenging for users to detect.

In August 2026, the DEA classified cychlorphine as a Schedule I drug, which means its possession or sale is illegal.

To reduce the chances of a fatal overdose, health authorities urge people to avoid using drugs by themselves, refrain from mixing different substances, and consider keeping naloxone on hand. Naloxone is a medication that can rapidly reverse the effects of an opioid overdose, potentially saving lives.