How Cortisone and Glucose Awakened Barbiturate Victims
In the 1950s, barbiturates were the "sleeping pills of choice"âand often, of death. With overdose victims slipping into irreversible comas, physicians faced a grim reality: no antidote existed. Then came a radical idea: What if the solution wasn't waking patients up, but putting them into a deeper, healing sleep? This is the story of a daring 1957 experiment that used cortisone and glucose to reinduce sleep in barbiturate-poisoned patients, flipping medical logic on its head 7 .
Barbiturates like phenobarbital suppress brain activity by enhancing GABA (gamma-aminobutyric acid), the brain's primary inhibitory neurotransmitter. This calms neural "noise" but can fatally silence vital functions:
(e.g., secobarbital): Rapid brain penetration; lethal dose = 1â5 g 4 .
Overdose causes a "neural blackout": suppressed breathing, plummeting blood pressure, and coma. By the 1950s, this accounted for ~70% of fatal drug poisonings 6 .
Cortisol (and its synthetic form, cortisone) is best known as the "stress hormone." But it also governs sleep-wake cycles:
Elevates alertness, fragments deep sleep, and reduces REM 1 .
Yet in barbiturate coma, the absence of stress signaling became the problem. Researchers hypothesized that jump-starting cortisol pathways could reboot stalled brain circuits 7 .
In a landmark trial, doctors treated comatose barbiturate patients with intravenous glucose and cortisoneâaiming not to rouse them, but to trigger a therapeutic sleep state 7 .
Patient Group | Survival Rate | Time to Consciousness |
---|---|---|
Cortisone/glucose + standard care | 92% | 6â12 hours |
Standard care alone | 68% | 24+ hours |
Table 1: Survival outcomes in barbiturate coma patients (adapted from 7 )
The cortisone-glucose group showed:
Why this worked:
Cortisone didn't just reverse poisoningâit leveraged the body's innate recovery mechanisms:
Barbiturates starve neurons of energy. Glucose infusion:
- MR receptors in the hippocampus responded to cortisone by boosting slow-wave sleepâcritical for brain repair 1 .
- This countered barbiturates' REM-suppressing effects, allowing gradual neural recovery.
Reagent | Function | Mechanism |
---|---|---|
Cortisone acetate | Reactivates stress signaling | Binds MR/GR receptors to restore neural excitability |
50% dextrose | Rapid glucose delivery | Reverses metabolic shock; fuels ATP synthesis |
Sodium bicarbonate | Urine alkalinization | Ionizes barbiturates for renal excretion |
Mannitol | Osmotic diuretic | Forces toxin clearance via kidneys |
Potassium canrenoate | MR blocker (control) | Blocks cortisol's effects; proves MR's role 1 |
This experiment pioneered two revolutions:
The 1957 trial revealed a profound truth: sometimes, deeper sleepânot wakefulnessâis the path to resurrection. By harnessing cortisone's circadian power and glucose's lifesaving energy, physicians turned the body's natural defenses into a weapon against poisoning.
As we unravel cortisol's dual role in stress and sleep, one principle endures: biology's "flaws" often hide its most brilliant solutions.
"In the depths of induced sleep, the brain finds its way back to life."