Argentina Doctor's Death Triggers Criminal Probe Into Missing Fentanyl and Stolen Propofol Medical Parties

The death of a young doctor in Buenos Aires has exploded into a scandal now rattling Argentina's medical establishment, after investigators traced powerful hospital anesthetics found at the scene to a major private hospital and began probing allegations that doctors and residents were using stolen fentanyl and propofol at private parties.

Argentine media reports say the case began on Feb. 20, when 31-year-old anesthesiologist Alejandro Zalazar was found dead in his Palermo apartment with an IV line connected to his foot, disposable medical supplies nearby, and drugs reserved for controlled medical use. Authorities later traced at least part of the medication to Hospital Italiano de Buenos Aires, setting off a criminal investigation and internal reviews.

What has made the case especially explosive is not only the death itself but also the allegation that the drugs were being diverted from hospitals and used recreationally in gatherings reportedly known as "Propo fest" or "controlled trips."

According to reporting by Argentine leading newspaper La Nación, the investigation has focused on two anesthesiology professionals linked to Hospital Italiano, Hernán Boveri and Delfina Lanusse, over the alleged theft and redistribution of propofol and fentanyl or similar anesthetic drugs between 2023 and mid-February 2026. Some of the most graphic accounts, including voice messages describing improvised monitoring and manual ventilation for people who stopped breathing, have circulated widely in Argentine media, although not every detail appears to be fully incorporated into the public court record.

Hospital Italiano has publicly acknowledged the theft of controlled substances and said it took action after learning the origin of the drugs. In a statement quoted by local media, the hospital said it adopted "all the necessary measures to analyze what happened, act with the people involved, and generate procedures to prevent similar events in the future." It also said those tied to the case are no longer working at the institution and that it has launched internal legal action alongside the judicial probe.

The case lands with particular force in the U.S. because fentanyl is already one of the most politically charged and deadly drugs in the country, while propofol became known after Michael Jackson's death, since it was the substance he was under when he passed at his home.

But while in the United States the problem is with illegal street sales, this scandal appears to involve medical professionals who allegedly diverted tightly controlled hospital drugs for personal use.

Fentanyl is a powerful synthetic opioid that can slow or stop breathing in an overdose, according to the National Institute on Drug Abuse. Propofol, a fast-acting IV sedative commonly used in operating rooms, can also cause dose-dependent respiratory depression and apnea, especially when combined with other sedating drugs, according to the NIH-hosted StatPearls reference. These are not party drugs. They are medications designed for monitored clinical settings where trained staff can intervene in seconds if a patient stops breathing.

That danger has been central to the Argentine coverage. Infobae quoted toxicologist Carlos Damin explaining that propofol "basically produces sedation" and is often paired with fentanyl because one induces sleep and the other relieves pain. Used in a hospital, that combination is routine. Used in an apartment or at an unsupervised gathering, it can quickly become lethal.

The wider professional fallout is still unfolding. The Buenos Aires Association of Anesthesia, Analgesia, and Resuscitation denied any cover-up and said it had taken the issue to court, while stressing that real controlled drugs are not used in training environments. The federation representing anesthesia associations in Argentina also rejected claims of institutional concealment and said it would cooperate with authorities.