Zombie Drug: What Is It and What Are Its Dangers?

The term “zombie drug” refers to a dangerous and rapidly spreading illicit substance, signaling a significant public health crisis. Its profound effects on users highlight an urgent need for public awareness regarding its nature and dangers.

Defining the “Zombie Drug”

The “zombie drug” is Xylazine, a non-opioid veterinary tranquilizer. The U.S. Food and Drug Administration (FDA) approves it solely for animal use as a sedative, pain reliever, and muscle relaxant. Xylazine is not approved for human use due to its potent central nervous system depressant effects. Illicitly, it is found in the unregulated drug supply, often mixed with other substances, most frequently fentanyl. The “zombie” moniker comes from the drug’s profound sedative effects, leaving users in a stupor resembling a trance-like or unconscious state.

The Distinctive “Zombie-Like” Manifestations

Xylazine use causes specific behavioral and neurological effects that contribute to its street name. Users often exhibit extreme sedation, appearing disoriented and in a deep stupor. This can manifest as slowed movements, unresponsiveness, and a frozen, shambling appearance, making individuals vulnerable to harm. Its central nervous system depressant properties cause drowsiness, muscle relaxation, and reduced brain activity. Unlike opioids, Xylazine does not produce the semi-awake euphoria seen with opioids. Instead, it can cause individuals to black out and awaken hours later, remaining in a highly vulnerable state.

Severe Health Complications

Xylazine use is associated with severe physical health complications. A devastating consequence is the development of painful, difficult-to-treat skin wounds, including ulcers, abscesses, and necrosis. These wounds can appear at injection sites or in distant areas, such as the extremities, due to the drug’s vasoconstrictive properties that restrict blood flow. If left untreated, these lesions can grow, become severely infected, and may necessitate amputation.

Xylazine also impacts vital physiological functions, leading to respiratory depression, low blood pressure (hypotension), and a slowed heart rate (bradycardia). These effects are especially pronounced and life-threatening when combined with opioids, as the drugs synergistically depress the central nervous system.

The Drug’s Origins and Current Landscape

Xylazine first emerged in the illicit drug supply in Puerto Rico in the early 2000s. It then began to appear in the continental United States, notably in Philadelphia in the late 2000s, before spreading across the country. Xylazine is primarily used as an adulterant or cutting agent in other illicit drugs, predominantly fentanyl and heroin, but also cocaine.

Its low cost and ability to prolong or intensify opioid effects are significant reasons for its inclusion. By November 2022, Xylazine was detected in 48 out of 50 U.S. states, indicating its rapid, widespread dissemination. Its presence poses significant challenges for public health and law enforcement due to its increasing prevalence and severe harms.

Emergency Measures for Overdose

For suspected Xylazine overdose, immediately call emergency services. While naloxone (Narcan) is effective in reversing opioid overdoses, it does not directly reverse Xylazine’s effects because Xylazine is not an opioid. Despite this, it is crucial to administer naloxone if an opioid overdose is suspected, as Xylazine is almost always mixed with opioids like fentanyl. Naloxone will counteract the opioid component, which can still be life-saving. Supportive care is also essential, including rescue breathing to maintain oxygen and monitoring body temperature until medical professionals arrive.