OpenClaim

Flurazepam Side Effects

The most commonly reported side effects of flurazepam include drug abuse, toxicity to various agents, and sopor, based on 3,341 FDA adverse event reports from 2004 to 2025. 5.1% of reports found the drug to be ineffective.

Flurazepam side effects

Percentages show how often each reaction appears relative to total reports for flurazepam.

1
Drug Abuse10.5%352
2
Toxicity To Various Agents8.4%281
3
Sopor8.0%267
4
Suicide Attempt5.8%194
5
Intentional Overdose5.3%178
6
Drug Ineffective5.1%170
7
Drug Interaction4.6%155
8
Overdose4.6%155
9
Intentional Self-injury4.3%144
10
Hypotension4.0%133
11
Somnolence3.9%130
12
Confusional State3.7%125
13
Coma3.6%119
14
Off Label Use3.5%117
15
Asthenia3.3%111

These are voluntary reports and do not establish that flurazepam caused these reactions.

Report severity

85.9%Serious2,870 reports
43.0%Hospitalizations1,436 reports
14.9%Fatal497 reports

Seriousness is determined by the reporter, not by OpenClaim.

Flurazepam drug interactions

Other drugs that appear in adverse event reports alongside flurazepam. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Quetiapine-fumarate11.8%394
2
Lorazepam8.7%291
3
Diazepam6.9%229
4
Alprazolam6.0%200
5
Olanzapine5.7%192
6
Mirtazapine4.5%150
7
Acetaminophen4.4%146
8
Citalopram-hydrobromide4.4%146
9
Clozapine4.2%139
10
Trazodone-hydrochloride3.8%127
11
Zolpidem-tartrate3.2%107
12
Venlafaxine3.1%105
13
Sertraline-hydrochloride3.1%103
14
Clonazepam2.8%95
15
Pregabalin2.8%94

Taken alongside

1
Acetaminophen10.9%365
2
Lorazepam9.8%328
3
Aspirin8.5%285
4
Levothyroxine-sodium7.4%248
5
Clonazepam6.2%207
6
Quetiapine-fumarate5.9%196
7
Alprazolam5.8%195
8
Gabapentin5.8%193
9
Omeprazole5.7%190
10
Albuterol5.5%184
11
Diazepam5.4%182
12
Atorvastatin-calcium5.3%176
13
Oxycodone5.0%167
14
Ergocalciferol4.9%163
15
Pantoprazole-sodium4.8%162

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports flurazepam side effects

57.8% of flurazepam adverse event reports involve female patients and 36.0% involve male patients. The largest age group is adult at 72%. These figures reflect who reports side effects, not underlying risk.

Sex

Female57.8%
Male36.0%
Unknown6.2%

Age group

< 20.4%
2–110.1%
12–170.8%
18–6472.1%
65+26.7%

What is flurazepam used for

Conditions and purposes for which patients were taking flurazepam when the adverse event was reported.

Adjustment DisorderAffect LabilityAffective DisorderAggressionAnalgesic EffectAnorexia NervosaAntiemetic Supportive CareAnxietyAnxiety DisorderAnxiolytic TherapyAffective DisorderAntipsychotic TherapyAnxietyBack PainBalance Disorder

Showing 15 of 119 indications

Flurazepam brand names and reporting trend

Flurazepam is sold under the brand name Dalmane.

Brand names

Dalmane23

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking flurazepam with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.