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Diazepam (Concentrate) side effects: what 88,496 FDA adverse event reports show

Diazepam Oral Solution (Concentrate) · 1,227 reaction terms · 368,677 drug–reaction co-reports · data 2026-09-14
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Drug class

Benzodiazepine

FDA label (Established Pharmacologic Class) of the closest related product

Label matched

Diazepam Oral (Diazepam)

closest FDA label found for this product string; brand list suppressed because the label is a related product, not an exact match

Who reports

88,496 reports · 85% serious · 20,478 with death outcome · 56% female

openFDA FAERS counts, all years, deduplication not applied

Used for

Diazepam is indicated for the management of anxiety disorders or for the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. In acute alcohol withdrawal, diazepam may be useful in the symptomatic relief of acute agitation, tremor, impending or acute delirium tremens and hallucinosis.

FDA label, Indications and Usage

What it is

DESCRIPTION Each 5 mL of Diazepam Oral Solution contains: diazepam USP ....................................................... 5 mg

FDA label, Description section

Boxed warning

RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL REACTIONS Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate.

FDA label
How to read this page. FAERS is a spontaneous-reporting system: counts are not incidence rates and a signal is not proof of causation. Each reaction below is run through an automated screen — is the term in the FDA label (known), in the indications (the disease being treated), an administrative/coding term, or none of these (unlabeled)? That screen is mechanical text matching, not a causality assessment. The 30 hand-written Bradford Hill assessments are on the causality assessment page. Not medical advice.

Causality screen of the 40 strongest signals

Labeled — boxed warning 1Labeled adverse reaction 2Labeled (related wording) 2Likely indication confounding 2Reporting / coding artifact 5Lab value / disease marker 3Not in label — unassessed 25
What the badges mean

Strongest disproportionality signals

Flagged terms (PRR ≥ 2, χ² ≥ 4, n ≥ 10), ranked by PRR; infinite PRRs (no comparator reports) excluded. The EBGM column is a second, shrinkage-based estimate (MGPS) with its 5th percentile EB05 and the BCPNN IC025; a pair flagged by PRR alone is marked PRR-only and should be read as fragile. The strata column recomputes the PRR on serious reports only (and, for the 300 most-reported drugs, adjusted for age band), and flags pairs whose reports are unusually skewed by sex or come mostly from consumers. Each row also shows the PRR against the other drugs of the same FDA class, which removes most confounding by the condition being treated, and a calibrated p-value: on validation, known non-causes average an ROR of about 2, so significance is judged against that empirical null (✓ = p < 0.05 after calibration). 1,187 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.

Show:
ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Rhesus incompatibility68298.7
208.6–427.7ROR 298.9 · calibrated p 4e-11 ✓
126.8 EB05 103.4 · IC025 +5.7
3/3 methods agree
Not in label — unassessedserious n=68no trial arm names this drug
Total lung capacity increased106150.5
117.9–192.1ROR 150.6 · calibrated p 7e-9 ✓
90.3 EB05 76.8 · IC025 +5.7
3/3 methods agree
Not in label — unassessedserious n=106 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Congenital nystagmus79141.5
107.0–187.1ROR 141.6 · calibrated p 1e-8 ✓
86.6 EB05 71.7 · IC025 +5.5
3/3 methods agree
Not in label — unassessedserious n=79 · 100% clinicianno trial arm names this drug
Visceral congestion13992.7
76.2–112.8ROR 92.9 · calibrated p 3e-7 ✓
66.0 EB05 57.3 · IC025 +5.5
3/3 methods agree
Not in label — unassessedserious n=139 · ♀ 0% (drug 56%) · 100% clinicianno trial arm names this drug
Myoglobin urine present6481.4
61.3–108.2ROR 81.5 · calibrated p 8e-7 ✓
59.6 EB05 48.3 · IC025 +5.0
3/3 methods agree
Lab value / disease markerserious n=63 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Vital capacity decreased10471.0
57.0–88.4ROR 71.1 · calibrated p 2e-6 ✓
54.1 EB05 45.9 · IC025 +5.1
3/3 methods agree
Not in label — unassessedserious n=104 · ♀ 100% (drug 56%)no trial arm names this drug
Substance use disorder66465.2
59.8–71.0ROR 65.7 · calibrated p 2e-6 ✓
51.1 EB05 47.9 · IC025 +5.5
3/3 methods agree
Labeled adverse reaction
exact term
serious n=664 · ♀ 30% (drug 56%) · 100% clinicianno trial arm names this drug
Asthma-chronic obstructive pulmonary disease overlap syndrome10861.9
50.1–76.6ROR 62.0 · calibrated p 4e-6 ✓
48.7 EB05 41.5 · IC025 +5.0
3/3 methods agree
Not in label — unassessedserious n=106 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Reversible airways obstruction10459.9
48.3–74.3ROR 60.0 · calibrated p 5e-6 ✓
47.5 EB05 40.3 · IC025 +5.0
3/3 methods agree
Not in label — unassessedserious n=104 · ♀ 100% (drug 56%)no trial arm names this drug
Stiff person syndrome6151.8
39.3–68.4ROR 51.9 · calibrated p 2e-5 ✓
42.1 EB05 33.9 · IC025 +4.6
3/3 methods agree
Not in label — unassessedserious n=59 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Bradypnoea37638.5
34.5–42.9ROR 38.7 · calibrated p 7e-5 ✓
33.1 EB05 30.4 · IC025 +4.8
3/3 methods agree
Not in label — unassessedserious n=376 · 100% clinicianno trial arm names this drug
Exposure via father18538.5
32.9–44.9ROR 38.5 · calibrated p 7e-5 ✓
33.0 EB05 29.2 · IC025 +4.7
3/3 methods agree
Reporting / coding artifactserious n=185 · 100% clinicianno trial arm names this drug
Multiple drug therapy9637.7
30.4–46.8ROR 37.7 · calibrated p 9e-5 ✓
32.4 EB05 27.3 · IC025 +4.5
3/3 methods agree
Reporting / coding artifactserious n=96 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Sputum culture positive11136.8
30.1–44.9ROR 36.8 · calibrated p 1e-4 ✓
31.7 EB05 27.1 · IC025 +4.5
3/3 methods agree
Lab value / disease markerserious n=111 · ♀ 100% (drug 56%)no trial arm names this drug
Multiple drug overdose accidental6135.8
27.3–46.8ROR 35.8 · calibrated p 1e-4 ✓
30.9 EB05 24.9 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=61 · ♀ 0% (drug 56%) · 100% clinicianno trial arm names this drug
Victim of chemical submission7132.5
25.4–41.7ROR 32.6 · calibrated p 2e-4 ✓
28.5 EB05 23.3 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=71 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Victim of crime13329.9
25.0–35.8ROR 29.9 · calibrated p 3e-4 ✓
26.5 EB05 22.9 · IC025 +4.3
3/3 methods agree
Not in label — unassessedserious n=133 · ♀ 78% (drug 56%) · 100% clinicianno trial arm names this drug
Drug use disorder91729.4
27.5–31.5ROR 29.7 · calibrated p 3e-4 ✓
26.2 EB05 24.8 · IC025 +4.6
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious PRR 18.4 · ♀ 32% (drug 56%) · 97% clinicianno trial arm names this drug
Miosis79726.3
24.4–28.2ROR 26.5 · calibrated p 5e-4 ✓
23.7 EB05 22.3 · IC025 +4.4
3/3 methods agree
Not in label — unassessedserious PRR 16.9 · ♀ 31% (drug 56%) · 97% clinicianno trial arm names this drug
Poisoning deliberate90625.5
23.8–27.3ROR 25.7 · calibrated p 6e-4 ✓
23.1 EB05 21.8 · IC025 +4.4
3/3 methods agree
Not in label — unassessedserious PRR 15.6 · 97% clinicianno trial arm names this drug
Accidental death17324.3
20.8–28.4ROR 24.4 · calibrated p 8e-4 ✓
22.1 EB05 19.4 · IC025 +4.1
3/3 methods agree
Not in label — unassessedserious n=173 · 100% clinicianno trial arm names this drug
Agoraphobia12724.2
20.1–29.0ROR 24.2 · calibrated p 9e-4 ✓
21.9 EB05 18.9 · IC025 +4.1
3/3 methods agree
Not in label — unassessedserious n=124no trial arm names this drug
Coma scale abnormal26123.7
20.9–26.9ROR 23.8 · calibrated p 9e-4 ✓
21.6 EB05 19.5 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=261no trial arm names this drug
Sedation complication22323.1
20.2–26.5ROR 23.2 · calibrated p 0.001 ✓
21.1 EB05 18.9 · IC025 +4.1
3/3 methods agree
Reporting / coding artifactserious n=218no trial arm names this drug
Poisoning1,07922.1
20.8–23.5ROR 22.3 · calibrated p 0.001 ✓
20.3 EB05 19.3 · IC025 +4.2
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 13.9 · 97% clinicianno trial arm names this drug
Bronchial secretion retention10822.1
18.1–26.9ROR 22.1 · calibrated p 0.001 ✓
20.2 EB05 17.2 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=108 · ♀ 100% (drug 56%)no trial arm names this drug
Cogwheel rigidity9022.1
17.8–27.4ROR 22.1 · calibrated p 0.001 ✓
20.2 EB05 16.9 · IC025 +3.8
3/3 methods agree
Not in label — unassessedserious n=90 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Multiple drug overdose40920.9
18.9–23.1ROR 21.0 · calibrated p 0.002 ✓
19.2 EB05 17.7 · IC025 +4.1
3/3 methods agree
Not in label — unassessedserious n=409 · 100% clinicianno trial arm names this drug
Substance abuse65320.6
19.0–22.3ROR 20.7 · calibrated p 0.002 ✓
19.0 EB05 17.8 · IC025 +4.1
3/3 methods agree
Reporting / coding artifactserious PRR 14.1 · ♀ 28% (drug 56%)no trial arm names this drug
Respiratory depression91018.9
17.7–20.2ROR 19.1 · calibrated p 0.002 ✓
17.6 EB05 16.6 · IC025 +4.0
3/3 methods agree
Labeled — boxed warning
exact term
age-adj. PRR 13.8 · serious PRR 11.8 · 92% clinicianno trial arm names this drug
Drug abuse6,13818.7
18.2–19.2ROR 20.0 · calibrated p 0.002 ✓
17.4 EB05 17.0 · IC025 +4.1
3/3 methods agree
Reporting / coding artifactage-adj. PRR 13.8 · serious PRR 11.9 · 93% clinicianno trial arm names this drug
Psychogenic seizure6618.2
14.2–23.4ROR 18.2 · calibrated p 0.003 ✓
16.8 EB05 13.7 · IC025 +3.5
3/3 methods agree
Not in label — unassessedserious n=64 · ♀ 100% (drug 56%)no trial arm names this drug
Hypomania26318.1
16.0–20.6ROR 18.2 · calibrated p 0.003 ✓
16.9 EB05 15.2 · IC025 +3.8
3/3 methods agree
Not in label — unassessedserious n=261 · ♀ 90% (drug 56%)no trial arm names this drug
Gastric ph decreased6816.7
13.1–21.4ROR 16.7 · calibrated p 0.005 ✓
15.6 EB05 12.6 · IC025 +3.4
3/3 methods agree
Lab value / disease markerserious n=67 · ♀ 100% (drug 56%) · 100% clinicianno trial arm names this drug
Neuroleptic malignant syndrome72815.4
14.3–16.6ROR 15.5 · calibrated p 0.006 ✓
14.5 EB05 13.6 · IC025 +3.7
3/3 methods agree
Not in label — unassessedage-adj. PRR 12.2 · serious PRR 9.8 · 92% clinicianno trial arm names this drug
Drug withdrawal convulsions10815.2
12.5–18.5ROR 15.2 · calibrated p 0.007 ✓
14.3 EB05 12.1 · IC025 +3.4
3/3 methods agree
Likely indication confounding
shares a disease stem with the indications wording
serious n=108 · 100% clinicianno trial arm names this drug
Chronic kidney disease-mineral and bone disorder6214.4
11.2–18.7ROR 14.4 · calibrated p 0.009 ✓
13.5 EB05 10.8 · IC025 +3.2
3/3 methods agree
Not in label — unassessedserious n=62 · ♀ 0% (drug 56%)no trial arm names this drug
Accidental poisoning7714.3
11.3–18.0ROR 14.3 · calibrated p 0.009 ✓
13.4 EB05 11.0 · IC025 +3.3
3/3 methods agree
Not in label — unassessedserious n=77 · ♀ 0% (drug 56%) · 100% clinicianno trial arm names this drug

Clinical concept groups

MedDRA splits one clinical problem across several terms (e.g. "neutropenia", "neutrophil count decreased", "agranulocytosis"), which dilutes term-level signals. These rows count reports with any term in a concept group (an exact union, not a sum), compared with all other drugs. Groups are hand-built and listed in the methods.

ConceptReportsPRR 95% CIReading
Suicidality8,0528.07.8–8.2signal
Extrapyramidal1,8214.14.0–4.3signal
Seizure3,0403.73.6–3.8signal
Rhabdomyolysis / myopathy1,2113.63.4–3.8signal
Dependence / withdrawal3,5852.92.8–3.0signal
Depression2,9712.52.4–2.6signal
Hyponatraemia8112.42.2–2.6signal
Severe cutaneous reaction7152.32.1–2.5signal
Arrhythmia / qt1,6272.01.9–2.1raised
Fall / fracture2,9941.91.8–1.9raised
Kidney injury3,4721.81.7–1.9raised
Liver injury1,8621.51.4–1.5raised
Serious infection4,6491.41.4–1.5raised
Venous thromboembolism1,1241.21.2–1.3raised
Hypoglycaemia4871.21.1–1.3raised
Pancreatitis4011.21.1–1.3raised

Trial evidence (ClinicalTrials.gov)

No completed trial with posted adverse-event results was found on ClinicalTrials.gov for Diazepam (Concentrate) (searched DIAZEPAM (CONCENTRATE).

Most frequently reported reactions

By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.

ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Toxicity to various agents8,87113.2
12.9–13.4ROR 14.5 · calibrated p 0.008 ✓
12.5 EB05 12.3 · IC025 +3.6
3/3 methods agree
Not in label — unassessedage-adj. PRR 10.8 · serious PRR 8.6no trial arm names this drug
Drug abuse6,13818.7
18.2–19.2ROR 20.0 · calibrated p 0.002 ✓
17.4 EB05 17.0 · IC025 +4.1
3/3 methods agree
Reporting / coding artifactage-adj. PRR 13.8 · serious PRR 11.9 · 93% clinicianno trial arm names this drug
Drug ineffective (drug did not work)4,9660.9
0.9–0.9ROR 0.9 · calibrated p 0.235
0.9 EB05 0.9 · IC025 -0.2
PRR-only: not supported by EBGM or IC
Reporting / coding artifactage-adj. PRR 0.9 · serious PRR 1.2no trial arm names this drug
Nausea4,1451.2
1.2–1.3ROR 1.3 · calibrated p 0.479
1.2 EB05 1.2 · IC025 +0.3Labeled adverse reaction
exact term
age-adj. PRR 1.1 · serious PRR 1.3no trial arm names this drug
Completed suicide (death by suicide)3,83911.3
10.9–11.6ROR 11.8 · calibrated p 0.018 ✓
10.8 EB05 10.5 · IC025 +3.4
3/3 methods agree
Outcome field, not a reaction
boxed warning mentions mortality
age-adj. PRR 7.8 · serious PRR 7.3 · 96% clinicianno trial arm names this drug
Drug interaction3,7755.8
5.6–5.9ROR 6.0 · calibrated p 0.152
5.6 EB05 5.5 · IC025 +2.4
3/3 methods agree
Reporting / coding artifactage-adj. PRR 4.9 · serious PRR 4.2no trial arm names this drug
Fatigue (tiredness)3,7691.2
1.1–1.2ROR 1.2 · calibrated p 0.411
1.1 EB05 1.1 · IC025 +0.1Labeled adverse reaction
exact term
age-adj. PRR 0.9 · serious PRR 1.1no trial arm names this drug
Somnolence (drowsiness)3,5604.3
4.1–4.4ROR 4.4 · calibrated p 0.312
4.2 EB05 4.1 · IC025 +2.0
3/3 methods agree
Labeled — boxed warning
synonym match
age-adj. PRR 3.9 · serious PRR 4.4no trial arm names this drug
Off label use (used outside approved label)3,4800.9
0.9–1.0ROR 0.9 · calibrated p 0.273
1.0 EB05 0.9 · IC025 -0.1
PRR-only: not supported by EBGM or IC
Reporting / coding artifactage-adj. PRR 0.9 · serious PRR 1.0no trial arm names this drug
Anxiety3,3612.8
2.7–2.9ROR 2.9 · calibrated p 0.665
2.8 EB05 2.7 · IC025 +1.4
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
age-adj. PRR 2.4 · serious PRR 2.5no trial arm names this drug
Death3,3340.9
0.9–0.9ROR 0.9 · calibrated p 0.251
0.9 EB05 0.9 · IC025 -0.2
PRR-only: not supported by EBGM or IC
Outcome field, not a reaction
boxed warning mentions mortality
age-adj. PRR 1.3 · serious PRR 0.6no trial arm names this drug
Headache3,2351.2
1.2–1.3ROR 1.2 · calibrated p 0.463
1.2 EB05 1.2 · IC025 +0.2Labeled adverse reaction
exact term
age-adj. PRR 1.0 · serious PRR 1.3no trial arm names this drug
Pain3,2071.2
1.2–1.3ROR 1.2 · calibrated p 0.471
1.2 EB05 1.2 · IC025 +0.2Not in label — unassessedage-adj. PRR 1.1 · serious PRR 1.1no trial arm names this drug
Overdose3,1923.5
3.4–3.7ROR 3.6 · calibrated p 0.455
3.5 EB05 3.4 · IC025 +1.7
3/3 methods agree
Reporting / coding artifactage-adj. PRR 4.3 · serious PRR 2.9no trial arm names this drug
Vomiting3,0691.6
1.5–1.6ROR 1.6 · calibrated p 0.690
1.6 EB05 1.5 · IC025 +0.6Not in label — unassessedage-adj. PRR 1.3 · serious PRR 1.4no trial arm names this drug

Unlabeled candidate signals

These flagged terms were not found in the FDA label text and do not match an artifact pattern. They are the pairs that would merit a structured assessment (temporality, dose-response, biological plausibility, consistency across databases, trial or cohort evidence). The screen has not done that; string-matching misses label wording, and a strong PRR can still be stimulated reporting, co-medication, or the disease itself.

✓ A hand-written Bradford Hill causality assessment exists for this drug: Diazepam ↔ Drug Abuse.

Want to assess one of these properly? The runbook describes the Bradford Hill / trial-evidence workflow used on the assessment page, and handoff_top1000_signals.csv lists the strongest unassessed pairs across all drugs.

Common questions

What are the most reported side effects of Diazepam (Concentrate)?

In FDA FAERS, the most frequently co-reported reaction terms for Diazepam (Concentrate) are toxicity to various agents, nausea, fatigue, somnolence, anxiety, headache. These are report counts, not rates: FAERS has no denominator, reporting is voluntary and uneven, and a term can be reported because of the illness being treated rather than the drug.

Does Diazepam (Concentrate) have an FDA boxed warning?

Yes. The current FDA label carries a boxed warning: RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL REACTIONS Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate.

Do FAERS signals prove that Diazepam (Concentrate) causes these side effects?

No. A disproportionality signal (PRR, ROR) means a reaction is reported more often with this drug than with others in the database. That can reflect a real effect, but also the disease being treated, stimulated reporting after news or litigation, co-medications, or how reports are coded. Causality needs temporality, dose-response, biological plausibility, consistency across data sources and, ideally, trial or cohort evidence. This page screens each term against the FDA label and ClinicalTrials.gov results; it does not establish causation.

Sources & methods

Page generated 2026-10-14. Label and PubChem text are retrieved automatically and may lag the current label; always check the current prescribing information. OpenPV is a beta research tool of the Open Source Medicine Foundation.