Zolpidem Dosage Guide

## Presentation Zolpidem overdose from the drug alone is **rarely fatal in otherwise healthy adults**, which is a significant safety advantage over older hypnotics like barbiturates and some benzodiazepines. However, overdose can produce clinically significant symptoms including: - Deep sedation progressing to obtundation or coma - Respiratory depression — typically mild with zolpidem alone but potentially severe in combination with other CNS depressants - Paradoxical agitation and delirium (particularly in elderly patients) - Ataxia and impaired coordination - Hypotension - Nausea and vomiting with aspiration risk in deeply sedated patients ## Polysubstance Risk The majority of serious zolpidem-related poisonings and fatalities involve **co-ingestion with other substances**, particularly: - **Alcohol**: the most common co-ingestant in zolpidem-related emergency presentations - **Opioids**: additive respiratory depression; this combination has caused deaths - **Benzodiazepines**: synergistic GABA-ergic effects with risk of profound respiratory depression ## Emergency Response - **Call 911** for any suspected zolpidem overdose, particularly if other substances are involved - **Flumazenil** (the benzodiazepine antagonist) can reverse zolpidem's effects because zolpidem acts at the benzodiazepine binding site on GABA-A receptors. However, flumazenil use is generally reserved for severe cases in hospital settings due to the risk of precipitating seizures in patients with benzodiazepine dependence - Place the person in the recovery position if unconscious - Monitor breathing and be prepared to perform rescue breathing if necessary - Do not induce vomiting in a sedated patient — aspiration risk is high