New Super-Opioid Haunts San Francisco

Fentanyl vial labeled as opioid analgesic.

San Francisco’s Tenderloin is once again being defined by a street crisis so visible that residents and officials are arguing over what the public is actually seeing and what it can prove.

Quick Take

A viral Tenderloin video captured people appearing heavily impaired on a city street, renewing alarm about public disorder.^[1]^[2]
Local reporting says a new opioid called isotonitazene, or ISO, has been showing up in San Francisco and is described as at least 20 times more potent than fentanyl.^[1]
Other reporting warns that video evidence alone does not prove the exact drug involved or establish potency in the filmed scene.^[2]^[3]
The dispute reflects a broader argument over whether San Francisco’s crisis is being driven mainly by drugs, homelessness, weak enforcement, or all three.^[1]^[2]^[3]

What the Viral Clip Showed

The latest burst of attention came from footage circulating online that showed multiple people in the Tenderloin appearing motionless, bent over, or otherwise incapacitated on public sidewalks. Washington Times reporting described the scene as “drugged out,” while ABC7 News has documented the neighborhood through the work of a resident who films street conditions to highlight the ongoing fentanyl crisis.^[1]^[2] The images fit a familiar pattern in San Francisco: a few minutes of video can shape the city’s reputation faster than any official briefing.

That speed matters because the Tenderloin is already known as one of the city’s most visible drug and homelessness hot spots. KQED reported that the neighborhood’s image is shaped by disturbing videos of people taking drugs outside, and that those clips can intensify public fear and frustration.^[3] In practice, the viral format compresses a complex problem into a single street-level snapshot, which makes it powerful politically but incomplete as evidence of the full scale or cause of the crisis.^[3]

What the Drug Claim Does and Does Not Prove

The strongest factual support for the “20 times more powerful than fentanyl” claim comes from ABC7 News coverage of isotonitazene, also called ISO, a synthetic opioid described by advocates and officials as at least 20 times more potent than fentanyl.^[1] That reporting says the drug has been detected in the broader illicit market and is a concern because it may be mixed with other drugs.^[1] But potency claims about ISO do not automatically identify the substance in any specific viral clip.

That distinction is important. The supplied reporting does not show laboratory testing, toxicology results, or chain-of-custody evidence tying the video to ISO, fentanyl, or any other drug.^[1]^[2]^[3] KQED also noted that viral drug videos can be selective and decontextualized, which means they may accurately show public suffering while still leaving key questions unanswered about what exactly is being consumed and how widespread the underlying trend really is.^[3]

Why the Tenderloin Keeps Triggering Broader Anger

The debate around the Tenderloin is not only about one substance. It is also about whether city leaders, law enforcement, health agencies, and elected officials are failing to get ahead of a crisis that combines addiction, homelessness, public disorder, and open-air drug use.^[1]^[2]^[3] ABC7’s reporting says ISO is “poised to push the overdose death toll even higher,” while KQED’s coverage shows that the neighborhood’s public image is already shaped by repeated scenes of visible drug use.^[1]^[3] For many residents, that combination feels like proof of institutional breakdown.

At the same time, the reporting points to a more limited and careful conclusion: San Francisco is confronting a severe and highly visible drug scene, but the specific chemical in the viral footage has not been independently proven in the material provided.^[1]^[2]^[3] That gap leaves room for competing interpretations that are now common across the country. One side sees a city being overwhelmed by ever-deadlier opioids; the other sees a public narrative that can outrun the evidence and oversimplify a much larger social failure.