Escitslopram side effects: what 57,813 FDA adverse event reports show
Drug class
Selective serotonin reuptake inhibitor (ssri)
Brand names
Escitalopram
Who reports
57,813 reports · 80% serious · 6,033 with death outcome · 65% female
Used for
Escitalopram tablets are indicated for the treatment of: major depressive disorder (MDD) in adults and pediatric patients 12 years of age and older. generalized anxiety disorder (GAD) in adults. Additional pediatric use information is approved for AbbVie Inc.'s LEXAPRO (escitalopram) tablets. However, due to AbbVie Inc.'s marketing exclusivity rights, this drug product is not labeled with that information.
What it is
Escitalopram tablets USP contains escitalopram a selective serotonin reuptake inhibitor (SSRI), present as escitalopram oxalate salt. Escitalopram is the pure S-enantiomer (single isomer) of the racemic bicyclic phthalane derivative citalopram.
Boxed warning
SUICIDAL THOUGHTS AND BEHAVIORS WARNING: SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning. Increased risk of suicidal thoughts and behavior in pediatric and young adult patients taking antidepressants.
Causality screen of the 40 strongest signals
What the badges mean
- Labeled — boxed warning The term (or its clinical synonym) appears in the FDA boxed warning: causality is regulator-recognised and considered serious.
- Labeled adverse reaction The exact term appears in the label's warnings or adverse-reactions sections: a known, expected effect. The FAERS signal confirms the label rather than discovering anything.
- Labeled (related wording) The label describes this effect under different wording (e.g. 'neutropenia' for 'neutrophil count decreased'). Treated as known.
- Lab value / disease marker A laboratory result, investigation or disease-activity marker (antibody positive, CRP abnormal, swollen joint count) not described in the label. These usually mirror the monitored disease or testing protocol rather than a drug effect; not screened further.
- Not in label — unassessed Not found in the label text, not an artifact pattern. This is a genuine candidate for a formal causality assessment (Bradford Hill / WHO-UMC); it has NOT had one here.
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). 1,165 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.
| Reaction | Reports | PRR 95% CI · ROR · χ²/p | EBGM EB05 · IC025 | Label screen | Serious-only & strata | Trial cross-check |
|---|---|---|---|---|---|---|
| Total lung capacity abnormal | 98 | 125.8 99.9–158.4ROR 126.0 · calibrated p 3e-8 ✓ | 91.7 EB05 77.4 · IC025 +5.7 3/3 methods agree | Not in label — unassessed | serious n=97 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Spirometry abnormal | 130 | 103.1 84.8–125.3ROR 103.3 · calibrated p 1e-7 ✓ | 79.3 EB05 68.5 · IC025 +5.7 3/3 methods agree | Lab value / disease marker | serious n=130 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Pulmonary vasculitis | 113 | 98.6 80.1–121.4ROR 98.8 · calibrated p 2e-7 ✓ | 76.5 EB05 65.4 · IC025 +5.5 3/3 methods agree | Not in label — unassessed | serious n=113 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Capillaritis | 53 | 89.2 66.0–120.5ROR 89.3 · calibrated p 5e-7 ✓ | 69.8 EB05 55.4 · IC025 +5.0 3/3 methods agree | Not in label — unassessed | serious n=53 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
| Mite allergy | 120 | 84.0 68.8–102.4ROR 84.1 · calibrated p 5e-7 ✓ | 67.5 EB05 57.9 · IC025 +5.4 3/3 methods agree | Labeled (related wording) related wording | serious n=120 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Genital anaesthesia | 49 | 81.3 59.6–110.9ROR 81.4 · calibrated p 9e-7 ✓ | 64.8 EB05 51.0 · IC025 +4.8 3/3 methods agree | Not in label — unassessed | serious n=49 · ♀ 0% (drug 65%) · 100% consumer | no trial arm names this drug |
| Steroid dependence | 138 | 70.3 58.5–84.3ROR 70.4 · calibrated p 2e-6 ✓ | 58.4 EB05 50.7 · IC025 +5.3 3/3 methods agree | Not in label — unassessed | serious n=138 · ♀ 21% (drug 65%) · 100% clinician | no trial arm names this drug |
| Amaurosis fugax | 167 | 67.0 56.8–79.1ROR 67.2 · calibrated p 2e-6 ✓ | 56.3 EB05 49.4 · IC025 +5.3 3/3 methods agree | Not in label — unassessed | serious n=167 · 100% clinician | no trial arm names this drug |
| Catarrh | 131 | 62.6 52.0–75.3ROR 62.7 · calibrated p 4e-6 ✓ | 53.0 EB05 45.8 · IC025 +5.2 3/3 methods agree | Not in label — unassessed | serious n=131 · ♀ 24% (drug 65%) · 100% clinician | no trial arm names this drug |
| Mycotic allergy | 118 | 59.0 48.5–71.6ROR 59.1 · calibrated p 6e-6 ✓ | 50.4 EB05 43.2 · IC025 +5.1 3/3 methods agree | Not in label — unassessed | serious n=117 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Rapid eye movement sleep behaviour disorder | 50 | 51.9 38.6–69.8ROR 51.9 · calibrated p 2e-5 ✓ | 44.7 EB05 35.2 · IC025 +4.5 3/3 methods agree | Not in label — unassessed | serious n=48 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
| Dust allergy | 118 | 50.5 41.6–61.2ROR 50.6 · calibrated p 1e-5 ✓ | 44.1 EB05 37.8 · IC025 +4.9 3/3 methods agree | Not in label — unassessed | serious n=118 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Antineutrophil cytoplasmic antibody positive | 78 | 43.4 34.3–54.9ROR 43.5 · calibrated p 4e-5 ✓ | 38.5 EB05 31.8 · IC025 +4.6 3/3 methods agree | Lab value / disease marker | serious n=78 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
| Conjunctivitis allergic | 136 | 37.1 31.1–44.3ROR 37.2 · calibrated p 9e-5 ✓ | 33.6 EB05 29.1 · IC025 +4.6 3/3 methods agree | Not in label — unassessed | serious n=136 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Autoscopy | 45 | 33.2 24.4–45.0ROR 33.2 · calibrated p 2e-4 ✓ | 30.1 EB05 23.4 · IC025 +4.0 3/3 methods agree | Not in label — unassessed | serious n=44 · ♀ 0% (drug 65%) · 100% consumer | no trial arm names this drug |
| Burns second degree | 136 | 30.5 25.6–36.3ROR 30.6 · calibrated p 3e-4 ✓ | 28.1 EB05 24.3 · IC025 +4.4 3/3 methods agree | Not in label — unassessed | serious n=136 · ♀ 23% (drug 65%) · 100% clinician | no trial arm names this drug |
| Reversible cerebral vasoconstriction syndrome | 149 | 29.7 25.2–35.1ROR 29.8 · calibrated p 3e-4 ✓ | 27.4 EB05 23.9 · IC025 +4.4 3/3 methods agree | Not in label — unassessed | serious n=149 · 100% clinician | no trial arm names this drug |
| Neuritis | 106 | 26.8 22.0–32.6ROR 26.8 · calibrated p 5e-4 ✓ | 24.9 EB05 21.1 · IC025 +4.2 3/3 methods agree | Not in label — unassessed | serious n=106 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Resting tremor | 40 | 23.8 17.2–32.7ROR 23.8 · calibrated p 0.001 ✓ | 22.1 EB05 16.9 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=37 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
| Serotonin syndrome | 1,171 | 23.6 22.3–25.0ROR 24.1 · calibrated p 8e-4 ✓ | 22.2 EB05 21.1 · IC025 +4.4 3/3 methods agree | Labeled — boxed warning exact term | serious PRR 16.1 | no trial arm names this drug |
| Pseudomonal bacteraemia | 48 | 22.0 16.4–29.4ROR 22.0 · calibrated p 0.002 ✓ | 20.6 EB05 16.1 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=48 · ♀ 100% (drug 65%) | no trial arm names this drug |
| Oromandibular dystonia | 41 | 21.8 15.9–29.9ROR 21.8 · calibrated p 0.002 ✓ | 20.4 EB05 15.7 · IC025 +3.5 3/3 methods agree | Not in label — unassessed | serious n=41 · 100% clinician | no trial arm names this drug |
| Physical deconditioning | 138 | 21.1 17.8–25.0ROR 21.1 · calibrated p 0.002 ✓ | 19.9 EB05 17.3 · IC025 +3.9 3/3 methods agree | Not in label — unassessed | serious n=138 | no trial arm names this drug |
| Eosinophilic granulomatosis with polyangiitis | 106 | 20.0 16.5–24.4ROR 20.1 · calibrated p 0.002 ✓ | 19.0 EB05 16.1 · IC025 +3.8 3/3 methods agree | Not in label — unassessed | serious n=106 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Genital hypoaesthesia | 50 | 18.9 14.3–25.2ROR 19.0 · calibrated p 0.003 ✓ | 17.9 EB05 14.1 · IC025 +3.5 3/3 methods agree | Labeled (related wording) related wording | serious n=49 · ♀ 0% (drug 65%) · 100% consumer | no trial arm names this drug |
| Intrusive thoughts | 55 | 18.5 14.1–24.3ROR 18.6 · calibrated p 0.003 ✓ | 17.6 EB05 14.0 · IC025 +3.5 3/3 methods agree | Not in label — unassessed | serious n=54 | no trial arm names this drug |
| Agitation neonatal | 43 | 17.1 12.6–23.2ROR 17.1 · calibrated p 0.005 ✓ | 16.2 EB05 12.4 · IC025 +3.3 3/3 methods agree | Not in label — unassessed | serious n=43 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Suspected suicide | 210 | 16.7 14.5–19.1ROR 16.7 · calibrated p 0.005 ✓ | 15.9 EB05 14.2 · IC025 +3.7 3/3 methods agree | Labeled (related wording) related wording | serious n=210 · 100% clinician | no trial arm names this drug |
| Respiratory disorder neonatal | 70 | 16.6 13.1–21.1ROR 16.7 · calibrated p 0.005 ✓ | 15.9 EB05 12.9 · IC025 +3.5 3/3 methods agree | Not in label — unassessed | serious n=70 | no trial arm names this drug |
| Clonus | 120 | 16.6 13.8–19.9ROR 16.6 · calibrated p 0.005 ✓ | 15.8 EB05 13.6 · IC025 +3.6 3/3 methods agree | Labeled adverse reaction exact term | serious n=119 · 100% clinician | no trial arm names this drug |
| Normochromic normocytic anaemia | 131 | 16.5 13.9–19.7ROR 16.5 · calibrated p 0.005 ✓ | 15.8 EB05 13.6 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=131 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Respiratory symptom | 120 | 16.2 13.5–19.4ROR 16.2 · calibrated p 0.005 ✓ | 15.5 EB05 13.3 · IC025 +3.6 3/3 methods agree | Labeled (related wording) related wording | serious n=118 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Hypopnoea | 146 | 15.9 13.5–18.8ROR 16.0 · calibrated p 0.006 ✓ | 15.3 EB05 13.3 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=144 · ♀ 29% (drug 65%) · 90% clinician | no trial arm names this drug |
| Sleep terror | 171 | 15.3 13.2–17.9ROR 15.4 · calibrated p 0.007 ✓ | 14.7 EB05 12.9 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=166 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Small for dates baby | 200 | 15.1 13.1–17.4ROR 15.2 · calibrated p 0.007 ✓ | 14.5 EB05 12.9 · IC025 +3.6 3/3 methods agree | Not in label — unassessed | serious n=199 | no trial arm names this drug |
| Sleep talking | 67 | 14.8 11.6–18.9ROR 14.8 · calibrated p 0.008 ✓ | 14.1 EB05 11.4 · IC025 +3.3 3/3 methods agree | Not in label — unassessed | serious n=65 · ♀ 0% (drug 65%) | no trial arm names this drug |
| Reduced facial expression | 39 | 14.7 10.6–20.2ROR 14.7 · calibrated p 0.009 ✓ | 13.9 EB05 10.4 · IC025 +3.1 3/3 methods agree | Not in label — unassessed | serious n=38 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
| Hyperreflexia | 135 | 14.5 12.2–17.2ROR 14.5 · calibrated p 0.008 ✓ | 13.9 EB05 12.0 · IC025 +3.5 3/3 methods agree | Labeled adverse reaction exact term | serious n=134 · 100% clinician | no trial arm names this drug |
| Electrocardiogram qrs complex prolonged | 194 | 14.3 12.4–16.5ROR 14.3 · calibrated p 0.009 ✓ | 13.7 EB05 12.2 · IC025 +3.5 3/3 methods agree | Lab value / disease marker | serious n=194 · 100% clinician | no trial arm names this drug |
| Alcohol poisoning | 97 | 13.7 11.2–16.8ROR 13.7 · calibrated p 0.011 ✓ | 13.2 EB05 11.1 · IC025 +3.3 3/3 methods agree | Not in label — unassessed | serious n=96 · ♀ 0% (drug 65%) · 100% clinician | no trial arm names this drug |
Trial evidence (ClinicalTrials.gov)
Most frequently reported reactions
By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.
| Reaction | Reports | PRR 95% CI · ROR · χ²/p | EBGM EB05 · IC025 | Label screen | Serious-only & strata | Trial cross-check |
|---|---|---|---|---|---|---|
| Drug ineffective (drug did not work) | 3,850 | 1.1 1.0–1.1ROR 1.1 · calibrated p 0.349 | 1.1 EB05 1.0 · IC025 +0.0 | Reporting / coding artifact | serious PRR 1.5 | no trial arm names this drug |
| Fatigue (tiredness) | 3,531 | 1.7 1.6–1.7ROR 1.7 · calibrated p 0.765 | 1.6 EB05 1.6 · IC025 +0.7 | Labeled adverse reaction exact term | serious PRR 1.6 | no trial arm names this drug |
| Nausea | 3,360 | 1.5 1.5–1.6ROR 1.6 · calibrated p 0.694 | 1.5 EB05 1.5 · IC025 +0.6 | Labeled adverse reaction exact term | serious PRR 1.6 | no trial arm names this drug |
| Off label use (used outside approved label) | 3,132 | 1.3 1.3–1.4ROR 1.3 · calibrated p 0.527 | 1.3 EB05 1.3 · IC025 +0.3 | Reporting / coding artifact | serious PRR 1.4 | no trial arm names this drug |
| Diarrhoea (diarrhea) | 2,854 | 1.6 1.6–1.7ROR 1.6 · calibrated p 0.734 | 1.6 EB05 1.6 · IC025 +0.6 | Labeled adverse reaction exact term | serious PRR 1.5 | no trial arm names this drug |
| Headache | 2,684 | 1.6 1.5–1.6ROR 1.6 · calibrated p 0.696 | 1.6 EB05 1.5 · IC025 +0.6 | Labeled adverse reaction exact term | serious PRR 1.8 | no trial arm names this drug |
| Drug interaction | 2,585 | 6.0 5.8–6.2ROR 6.2 · calibrated p 0.136 | 5.9 EB05 5.7 · IC025 +2.5 3/3 methods agree | Reporting / coding artifact | serious PRR 4.6 | no trial arm names this drug |
| Anxiety | 2,447 | 3.1 3.0–3.3ROR 3.2 · calibrated p 0.558 | 3.1 EB05 3.0 · IC025 +1.6 3/3 methods agree | Likely indication confounding term in indications; also in warnings | serious PRR 2.8 | no trial arm names this drug |
| Fall | 2,438 | 2.7 2.6–2.8ROR 2.7 · calibrated p 0.715 | 2.7 EB05 2.6 · IC025 +1.3 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 2.1 | no trial arm names this drug |
| Dizziness | 2,387 | 1.7 1.7–1.8ROR 1.8 · calibrated p 0.814 | 1.7 EB05 1.7 · IC025 +0.7 | Labeled adverse reaction exact term | serious PRR 1.8 | no trial arm names this drug |
| Depression | 2,190 | 3.5 3.4–3.6ROR 3.6 · calibrated p 0.461 | 3.5 EB05 3.4 · IC025 +1.7 3/3 methods agree | Labeled — boxed warning synonym match | serious PRR 3.0 | no trial arm names this drug |
| Vomiting | 2,099 | 1.6 1.6–1.7ROR 1.7 · calibrated p 0.738 | 1.6 EB05 1.6 · IC025 +0.6 | Labeled adverse reaction exact term | serious PRR 1.5 | no trial arm names this drug |
| Condition aggravated | 2,058 | 2.5 2.4–2.6ROR 2.5 · calibrated p 0.798 | 2.5 EB05 2.4 · IC025 +1.2 3/3 methods agree | Reporting / coding artifact | serious PRR 2.4 | no trial arm names this drug |
| Dyspnoea (shortness of breath) | 2,040 | 1.3 1.3–1.4ROR 1.3 · calibrated p 0.522 | 1.3 EB05 1.3 · IC025 +0.3 | Labeled adverse reaction exact term | serious PRR 1.1 | no trial arm names this drug |
| Somnolence (drowsiness) | 1,952 | 3.5 3.4–3.7ROR 3.6 · calibrated p 0.453 | 3.5 EB05 3.4 · IC025 +1.7 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 3.8 | no 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.
- Total lung capacity abnormal — n=98, PRR 125.8
- Pulmonary vasculitis — n=113, PRR 98.6
- Capillaritis — n=53, PRR 89.2
- Genital anaesthesia — n=49, PRR 81.3
- Steroid dependence — n=138, PRR 70.3
- Amaurosis fugax — n=167, PRR 67.0
- Catarrh — n=131, PRR 62.6
- Mycotic allergy — n=118, PRR 59.0
- Rapid eye movement sleep behaviour disorder — n=50, PRR 51.9
- Dust allergy — n=118, PRR 50.5
✓ A hand-written Bradford Hill causality assessment exists for this drug: Escitslopram ↔ Suicidal Ideation.
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 Escitslopram?
In FDA FAERS, the most frequently co-reported reaction terms for Escitslopram are fatigue, nausea, diarrhoea, headache, anxiety, fall. 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 Escitslopram have an FDA boxed warning?
Yes. The current FDA label carries a boxed warning: SUICIDAL THOUGHTS AND BEHAVIORS WARNING: SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning. Increased risk of suicidal thoughts and behavior in pediatric and young adult patients taking antidepressants.
Do FAERS signals prove that Escitslopram 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
- FDA label via openFDA (set ID 41f7392a-1f5c-4542-9c5c-f9e109851381, effective 20231218; matched on
openfda.generic_name.exact:"ESCITSLOPRAM") - Bayesian shrinkage measures computed offline over all 1,317,300 cached pairs: BCPNN information component (IC, with Norén closed-form IC025) and MGPS empirical-Bayes geometric mean (EBGM, EB05) with a two-component gamma prior fitted by maximum marginal likelihood (α₁=0.57, β₁=0.02, α₂=1.42, β₂=0.70, w=0.17); unstratified
- FAERS pair statistics from the OpenPV build of 2026-09-14 (openFDA
count=aggregation, fieldpatient.drug.openfda.generic_name.exact, 1,205 reaction terms, min 3 co-reports); PRR/ROR with 95% CI, chi-square with Yates correction - Serious-only and stratified counts (serious:1, patient.patientsex, primarysource.qualification) from openFDA count queries; serious-only PRR uses the drug serious report total and the term global serious total (N_serious=11,882,979); strata shown only when n ≥ 20
- Seriousness and sex counts from openFDA
count=serious,patient.patientsex,seriousnessdeath - ClinicalTrials.gov API v2 (query
ESCITSLOPRAM, results-bearing studies sorted by enrollment)
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.