San Francisco health authorities issued an urgent warning about a new synthetic drug called "Iso" following the first reported death linked to the substance [1].
The emergence of this drug represents a critical escalation in the synthetic opioid crisis. Because officials describe the drug as more dangerous than fentanyl, it poses an immediate risk to public health and emergency response systems in the U.S.
Also known as "white phantom," Iso is a synthetic compound that has appeared in San Francisco, California [1]. Health officials said the drug's potency and lethal risk necessitate a rapid public alert to prevent further casualties.
While fentanyl has long been the primary driver of overdose deaths in the region, the introduction of Iso adds a new layer of complexity to the crisis. The drug's chemical makeup and effects are being monitored as authorities attempt to curb its spread within the community [1].
Public health officials said the warning is intended to alert both the general public and medical providers to the presence of the drug. The reported death [1] serves as a primary indicator of the drug's high lethality compared to other synthetic substances currently on the street.
Authorities continue to monitor the distribution of "white phantom" to determine the scale of its availability. They said the priority is to identify the drug's impact on the population and ensure that first responders are equipped to handle potential overdoses involving this specific synthetic agent [1].
“The drug is described as more dangerous than fentanyl.”
The introduction of a synthetic drug deemed more potent than fentanyl suggests a shift in the illicit drug market toward even more lethal chemical analogues. This trend complicates harm reduction efforts, as standard overdose reversal protocols may be less effective against newer, more powerful synthetics, potentially increasing the mortality rate in urban centers like San Francisco.




