Alprazolam Dosage Guide

### Alprazolam Alone Benzodiazepines have a wide therapeutic index. For a healthy adult without tolerance, a lethal dose of alprazolam alone would require hundreds of milligrams -- far exceeding any therapeutic or recreational dose. Deaths from alprazolam alone in otherwise healthy individuals are rare. However, the Isbister study found that 22% of alprazolam overdose patients required ICU admission versus significantly lower rates for other benzodiazepines [1]. ### Combined with Other Depressants This is where people die. Opioid-benzodiazepine co-ingestion is the most common drug combination in US overdose deaths. Alcohol-benzodiazepine combinations are second. The mechanism is straightforward: alprazolam suppresses brainstem respiratory drive through GABAergic inhibition; opioids suppress the same centers through mu-receptor pathways. Together, they can stop breathing entirely. There is no reliably "safe" combination dose. ### Overdose Symptoms Overdose presents on a spectrum: **mild** (extreme drowsiness, slurred speech, poor coordination, confusion), **moderate** (unresponsiveness to verbal stimuli, depressed reflexes, hypotension), **severe** (respiratory depression or arrest, coma, cardiovascular collapse). Progression from moderate to severe can happen rapidly with co-intoxicants. ### What To Do If someone is unresponsive or breathing abnormally after taking alprazolam -- **call emergency services immediately**. Place them in the recovery position (on their side). Monitor breathing. If opioid co-ingestion is suspected and naloxone is available, administer it: it will not worsen a pure benzodiazepine overdose and may save a life. Flumazenil (a benzodiazepine antagonist) exists but is used cautiously because it can precipitate seizures in dependent individuals and has a shorter half-life than alprazolam [2]. ## References [1] Isbister GK et al. Br J Clin Pharmacol. 2004;58(1):88-95. [2] FDA Label. XANAX (alprazolam) tablets, USP. 2016.