As global measures tighten around fentanyl production, Mexican cartels resort to extreme methods, exploiting vulnerable populations and animals in Culiacán, Sinaloa, to test risky drug formulas, raising concerns about the impacts of these illicit activities.
The Dark Experimentation: Mexican Cartels Test Fentanyl on the Vulnerable

The Dark Experimentation: Mexican Cartels Test Fentanyl on the Vulnerable
An alarming trend emerges as Mexican cartels subject the marginalized and animals to deadly fentanyl concoctions for testing purposes.
In a chilling reality in Culiacán, Mexico, cartel operatives are targeting the homeless, offering cash to test experimental fentanyl formulas. Pedro López Camacho, a resident of a local encampment, recounts his harrowing experiences, where he was repeatedly injected with these dangerous drugs in exchange for money. While he managed to survive the ordeal, many of his peers did not, succumbing to the lethal effects of the substances they were forced to ingest.
This disturbing practice highlights the lengths to which Mexican cartels will go amid increasing global scrutiny of fentanyl production. The cartels, particularly in the Sinaloa region—home to the notorious Sinaloa Cartel—are struggling to access the necessary chemical compounds due to restrictions on exports, notably from China. In response, they have begun experimenting with various new additives, combining fentanyl with powerful anesthetics and sedatives to maintain its potency.
These dangerous experiments aren't limited to human subjects; cartel "cooks" are also testing their mixtures on animals such as rabbits and chickens. The crude tactics reflect a grievous disregard for life, as captured in the accounts of those who have survived the testing. “When it’s really strong, it knocks you out or kills you,” warns López Camacho, describing the perils of these trials.
This crisis not only underscores the ruthless nature of the drug trade but also exposes the vulnerabilities of marginalized communities exploited in the process. The global community must act to combat these heinous practices and provide support for those caught in the crossfire of drug cartel violence.