triazolam Side Effects
Also known as: Halcion
Analysis of 8,521 adverse event reports submitted to the FDA from 2004 to 2025.
Total Reports
8,521
Death-Related
1,218
14.3% of reports
Hospitalizations
3,668
43.0% of reports
Top Indication
Product Used For Unknown Indication
Most Reported Adverse Reactions
Who Reports Side Effects
Gender Distribution
Age Distribution
Reporting Trend by Year
Reactions in Death Reports
Top reactions reported in 1,218 reports where death was an outcome. These are voluntarily reported and do not establish causation.
| Reaction | Reports |
|---|---|
| COMPLETED SUICIDE | 222 |
| DEATH | 200 |
| TOXICITY TO VARIOUS AGENTS | 135 |
| PNEUMONIA | 80 |
| OVERDOSE | 76 |
| CARDIO-RESPIRATORY ARREST | 46 |
| DIARRHOEA | 46 |
| INTERSTITIAL LUNG DISEASE | 46 |
| RESPIRATORY FAILURE | 46 |
| CARDIAC ARREST | 42 |
| CARDIAC FAILURE | 41 |
| NAUSEA | 40 |
| PYREXIA | 40 |
| VOMITING | 40 |
| DRUG ABUSE | 37 |
| DEPRESSED LEVEL OF CONSCIOUSNESS | 34 |
| DRUG INTERACTION | 34 |
| MALIGNANT NEOPLASM PROGRESSION | 33 |
| FALL | 32 |
| DYSPNOEA | 31 |
Reactions in Hospitalization Reports
Top reactions in 3,668 reports where hospitalization was an outcome.
| Reaction | Reports |
|---|---|
| DRUG ABUSE | 321 |
| SOPOR | 286 |
| PYREXIA | 197 |
| FALL | 194 |
| OVERDOSE | 193 |
| SUICIDE ATTEMPT | 182 |
| INTENTIONAL OVERDOSE | 167 |
| PNEUMONIA | 162 |
| NAUSEA | 153 |
| DYSPNOEA | 146 |
| LOSS OF CONSCIOUSNESS | 144 |
| DRUG INTERACTION | 140 |
| VOMITING | 138 |
| DIARRHOEA | 134 |
| MALAISE | 119 |
| INTENTIONAL SELF-INJURY | 116 |
| SOMNOLENCE | 115 |
| DEHYDRATION | 114 |
| DIZZINESS | 114 |
| ASTHENIA | 107 |
Nearby — Related Medications
What the FAERS Data Reveals About triazolam Side Effects
The FDA Adverse Event Reporting System (FAERS) contains 8,521 voluntary reports linked to triazolam and its brand equivalents (Halcion), spanning 2004 through 2025. Of those, 1,218 (14.3%) listed death as an outcome and 3,668 (43.0%) involved hospitalization. The most common indication reported alongside adverse events was Product Used For Unknown Indication.
Demographic breakdowns help contextualize who is being exposed to the drug. Of reports with known sex, 58% were female and 42% male; age distribution skews toward 45-64, with 1,850 reports in that bracket. The single most reported reaction is drug abuse with 519 submissions, followed by drug ineffective and sopor.
FAERS is a signal-detection tool, not a scorecard. Reports are voluntary, and a single case may list multiple suspect drugs, so numbers above should not be read as incidence rates or per-patient risk. Widely prescribed drugs naturally accumulate more reports than niche therapies even when individual risk is low. These aggregates are useful for spotting patterns that merit further pharmacovigilance, not for choosing between medications. This page is for educational reference only and is not medical advice — speak with a licensed clinician about any side-effect concerns.
Read our methodology — how this data is sourced, computed, and verified.