Chemical Restraint Under the Microscope: Agitation Protocols After the Reckoning

A diagnosis the medical establishment threw out

For years, prehospital chemical sedation rode on a phrase that did a lot of dangerous work: "excited delirium." It was used to justify rapid, weight-guessed sedation of agitated patients, often at the urging of law enforcement on scene. That era is over, and we need to be precise about why.

In October 2023, the American College of Emergency Physicians (ACEP) formally withdrew its 2009 white paper on excited delirium, stating the term should not be used in clinical practice, by law enforcement, or by physicians serving as expert witnesses. ACEP was the last major medical body to repudiate it; the American Medical Association (AMA) had already opposed the term and opposed using ketamine or other sedatives to chemically restrain someone *solely* for law enforcement purposes back in 2021. The American Psychiatric Association rejected it as a diagnosis as well. The replacement framing — when clinically appropriate — is "hyperactive delirium with severe agitation," describing a genuine medical emergency without the pseudo-diagnostic baggage that excused bad practice.

This matters operationally: if your protocol still says "excited delirium," it is out of step with every relevant medical body, and that language will not protect you in a courtroom.

The case that forced the reckoning

Elijah McClain died in 2019 after Aurora, Colorado paramedics administered ketamine to a handcuffed young man following an estimated, not measured, weight — a dose that turned out to be far too high for his actual body weight. The fallout reshaped EMS. Colorado passed HB21-1251, restricting prehospital chemical restraint and barring police from directing or pressuring EMS to administer ketamine. The state required weight-based dosing safeguards. The criminal cases against the two paramedics ran for years; their homicide convictions were reversed on June 4, 2026, with new trials ordered — a reminder that the legal scrutiny on these decisions has not ended, it has intensified.

California's AB-360 (effective 2022) went further on the language, prohibiting coroners and physicians from citing "excited delirium" as a cause of death. The through-line: agitation sedation is now a documented, defensible clinical decision or it is a liability.

Picking the agent — on evidence, not reflex

Severe, dangerous agitation is real and sometimes requires pharmacologic management to keep the patient and crew safe. The ACEP task force on hyperactive delirium identified ketamine, droperidol, olanzapine, and midazolam (IM) as the best-supported options. Here's how I think about the main agents:

There is no single right answer, but there is a wrong process: guessing weight, stacking doses, and skipping monitoring. Recent comparative data suggest ketamine works faster, while combinations and alternatives like droperidol can reduce certain adverse events — but every one of these drugs can stop a patient breathing.

Monitoring is not optional anymore

The single biggest practice change is mandatory continuous monitoring after sedation. Once you've chemically sedated an agitated patient, that patient is now a potential airway and respiratory emergency. Continuous waveform capnography and SpO2 are the standard of care — capnography catches hypoventilation before the pulse ox even moves. If you're not running waveform capnography on every sedated patient, you are flying blind on the exact complication most likely to kill them.

And because respiratory depression is the predictable failure mode — especially with benzodiazepines or opioid co-ingestion — reversal readiness matters. The same naloxone access discussed in OTC Narcan and leave-behind programs belongs within arm's reach of any post-sedation patient who may have opioids on board.

Documentation that survives a subpoena

Write it like it will be read in court, because it might be. Document the measured or best-estimated weight and how you got it, the indication in clinical terms (not "excited delirium"), the drug, dose, route, and time, vital signs and capnography trends before and after, and whether law enforcement was present or requested sedation — and that the clinical decision was yours. Dosing scrutiny is real; an undocumented dose is an indefensible dose.

My bottom line: severe agitation still demands action, but the days of reflexive, police-prompted, weight-guessed sedation under a junk diagnosis are gone. Right drug, right dose for the real weight, continuous monitoring, honest charting. That's the standard now, and it's a better one.

Sources

• ACEP — ACEP's Position on Hyperactive Delirium
• ACEP — Task Force Report on Hyperactive Delirium with Severe Agitation (PDF)
• Colorado General Assembly — HB21-1251, Appropriate Use of Chemical Restraints on a Person
• Colorado CDPHE — Indications for Ketamine Use and Excited Delirium (KIRP Panel Recommendations)
• CNN — Emergency medical association rejects 'excited delirium'
• JEMS — Homicide Convictions Reversed for CO Paramedics Who Injected Ketamine into Elijah McClain