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Candesartan Cilexetil side effects: what 26,144 FDA adverse event reports show

Candesartan Cilexetil · 1,212 reaction terms · 135,455 drug–reaction co-reports · data 2026-09-14
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Drug class

Angiotensin ii receptor blocker (arb)

FDA label, Indications wording

Who reports

26,144 reports · 88% serious · 2,426 with death outcome · 57% female

openFDA FAERS counts, all years, deduplication not applied

Used for

Candesartan cilexetil is an angiotensin II receptor blocker (ARB) indicated for: • Treatment of hypertension in adults and children 1 to < 17 years of age, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions (1.1) .

FDA label, Indications and Usage

What it is

Candesartan cilexetil, a prodrug, is hydrolyzed to candesartan during absorption from the gastrointestinal tract. Candesartan is a selective AT 1 subtype angiotensin II receptor antagonist. Ca.

FDA label, Description section

Boxed warning

FETAL TOXICITY • When pregnancy is detected, discontinue candesartan cilexetil as soon as possible [see Warnings and Precautions ( 5.1 ) and Use in Specific Populations ( 8.1 )]. • Drugs that act directly on the reni.

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 adverse reaction 1Labeled (related wording) 2Likely indication confounding 2Lab value / disease marker 4Not in label — unassessed 31
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). 1,172 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
Vascular anastomotic haemorrhage236,060.9
1,819.9–20,185.0ROR 6,066.2 · calibrated p 6e-17 ✓
441.8 EB05 310.1 · IC025 +4.8
3/3 methods agree
Not in label — unassessedserious n=23 · ♀ 0% (drug 57%)not reported in cached trials
Neurologic neglect syndrome159319.0
265.5–383.4ROR 321.0 · calibrated p 7e-12 ✓
221.5 EB05 194.1 · IC025 +6.8
3/3 methods agree
Not in label — unassessedserious n=159 · ♀ 100% (drug 57%) · 92% cliniciannot reported in cached trials
Cardiospasm155309.4
257.1–372.4ROR 311.3 · calibrated p 1e-11 ✓
216.7 EB05 189.6 · IC025 +6.8
3/3 methods agree
Likely indication confounding
shares a disease stem with the indications wording
serious n=155not reported in cached trials
Vena cava injury23279.7
173.9–450.0ROR 280.0 · calibrated p 2e-10 ✓
176.7 EB05 124.0 · IC025 +4.6
3/3 methods agree
Not in label — unassessedserious n=23 · ♀ 0% (drug 57%)not reported in cached trials
Immunisation101244.2
195.4–305.1ROR 245.1 · calibrated p 1e-10 ✓
180.5 EB05 152.8 · IC025 +6.3
3/3 methods agree
Not in label — unassessedserious n=101not reported in cached trials
Pulmonary vasculitis122241.1
196.9–295.2ROR 242.2 · calibrated p 1e-10 ✓
179.8 EB05 154.6 · IC025 +6.4
3/3 methods agree
Not in label — unassessedserious n=122 · ♀ 0% (drug 57%)not reported in cached trials
Palmoplantar keratoderma152215.0
179.8–257.1ROR 216.2 · calibrated p 3e-10 ✓
165.7 EB05 144.8 · IC025 +6.5
3/3 methods agree
Not in label — unassessedserious n=152not reported in cached trials
Carotid artery thrombosis160185.2
156.0–219.9ROR 186.3 · calibrated p 9e-10 ✓
147.6 EB05 129.4 · IC025 +6.4
3/3 methods agree
Not in label — unassessedserious n=160 · ♀ 100% (drug 57%) · 92% cliniciannot reported in cached trials
Total lung capacity abnormal70180.8
139.5–234.4ROR 181.3 · calibrated p 2e-9 ✓
141.7 EB05 116.0 · IC025 +5.8
3/3 methods agree
Not in label — unassessedserious n=70 · ♀ 0% (drug 57%)not reported in cached trials
Renal cyst haemorrhage35152.0
105.9–218.2ROR 152.2 · calibrated p 1e-8 ✓
119.5 EB05 89.8 · IC025 +5.0
3/3 methods agree
Not in label — unassessedserious n=35 · ♀ 0% (drug 57%)not reported in cached trials
Capillaritis40140.5
100.4–196.7ROR 140.8 · calibrated p 2e-8 ✓
113.2 EB05 86.7 · IC025 +5.1
3/3 methods agree
Not in label — unassessedserious n=40 · ♀ 0% (drug 57%)not reported in cached trials
Adjustment disorder159111.3
94.3–131.4ROR 112.0 · calibrated p 6e-8 ✓
96.6 EB05 84.6 · IC025 +6.0
3/3 methods agree
Not in label — unassessedserious n=158 · ♀ 100% (drug 57%) · 91% cliniciannot reported in cached trials
Spirometry abnormal68105.0
81.6–135.2ROR 105.3 · calibrated p 1e-7 ✓
90.5 EB05 73.8 · IC025 +5.4
3/3 methods agree
Lab value / disease markerserious n=68 · ♀ 0% (drug 57%)not reported in cached trials
Mite allergy6590.9
70.4–117.5ROR 91.2 · calibrated p 3e-7 ✓
79.8 EB05 64.8 · IC025 +5.2
3/3 methods agree
Not in label — unassessedserious n=65 · ♀ 0% (drug 57%)not reported in cached trials
Antineutrophil cytoplasmic antibody positive5768.1
51.9–89.2ROR 68.2 · calibrated p 3e-6 ✓
61.5 EB05 49.2 · IC025 +4.9
3/3 methods agree
Lab value / disease markerserious n=57 · ♀ 0% (drug 57%)not reported in cached trials
Neuritis11967.2
55.7–81.0ROR 67.5 · calibrated p 2e-6 ✓
61.4 EB05 52.7 · IC025 +5.3
3/3 methods agree
Not in label — unassessedserious n=119 · ♀ 0% (drug 57%)not reported in cached trials
Blood growth hormone increased4366.0
48.4–90.1ROR 66.1 · calibrated p 4e-6 ✓
59.5 EB05 46.0 · IC025 +4.7
3/3 methods agree
Lab value / disease markerserious n=43 · ♀ 0% (drug 57%)not reported in cached trials
Mycotic allergy6465.9
51.1–85.0ROR 66.0 · calibrated p 3e-6 ✓
59.9 EB05 48.5 · IC025 +5.0
3/3 methods agree
Not in label — unassessedserious n=64 · ♀ 0% (drug 57%)not reported in cached trials
Atrial tachycardia15664.0
54.4–75.3ROR 64.4 · calibrated p 3e-6 ✓
58.9 EB05 51.5 · IC025 +5.4
3/3 methods agree
Not in label — unassessedserious n=156not reported in cached trials
Intraductal papillary mucinous neoplasm2162.2
39.9–96.9ROR 62.2 · calibrated p 9e-6 ✓
55.0 EB05 37.9 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=21not reported in cached trials
Vascular compression2261.0
39.6–94.1ROR 61.1 · calibrated p 9e-6 ✓
54.2 EB05 37.7 · IC025 +3.9
3/3 methods agree
Likely indication confounding
shares a disease stem with the indications wording
serious n=22 · ♀ 0% (drug 57%)not reported in cached trials
Dust allergy6860.8
47.5–77.8ROR 61.0 · calibrated p 5e-6 ✓
55.7 EB05 45.5 · IC025 +4.9
3/3 methods agree
Not in label — unassessedserious n=68 · ♀ 0% (drug 57%)not reported in cached trials
Pruritus genital16159.5
50.7–69.8ROR 59.9 · calibrated p 5e-6 ✓
55.1 EB05 48.3 · IC025 +5.3
3/3 methods agree
Not in label — unassessedserious n=159not reported in cached trials
Personality disorder16453.2
45.4–62.3ROR 53.5 · calibrated p 1e-5 ✓
49.6 EB05 43.6 · IC025 +5.2
3/3 methods agree
Not in label — unassessedserious n=164 · ♀ 100% (drug 57%) · 91% cliniciannot reported in cached trials
Overlap syndrome3745.4
32.6–63.2ROR 45.5 · calibrated p 4e-5 ✓
42.1 EB05 31.9 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=37 · ♀ 100% (drug 57%) · 100% cliniciannot reported in cached trials
Eosinophilic granulomatosis with polyangiitis10041.8
34.2–51.0ROR 41.9 · calibrated p 5e-5 ✓
39.4 EB05 33.4 · IC025 +4.7
3/3 methods agree
Not in label — unassessedserious n=100 · ♀ 0% (drug 57%)not reported in cached trials
Carotid artery occlusion17941.2
35.5–47.9ROR 41.5 · calibrated p 5e-5 ✓
39.1 EB05 34.5 · IC025 +4.9
3/3 methods agree
Not in label — unassessedserious n=179not reported in cached trials
Bronchopulmonary aspergillosis allergic4440.4
29.8–54.7ROR 40.5 · calibrated p 7e-5 ✓
37.9 EB05 29.4 · IC025 +4.3
3/3 methods agree
Not in label — unassessedserious n=44 · ♀ 100% (drug 57%)not reported in cached trials
Conjunctivitis allergic7040.3
31.7–51.2ROR 40.4 · calibrated p 6e-5 ✓
38.0 EB05 31.1 · IC025 +4.5
3/3 methods agree
Not in label — unassessedserious n=70 · ♀ 0% (drug 57%)not reported in cached trials
Delayed graft function3035.5
24.6–51.2ROR 35.5 · calibrated p 2e-4 ✓
33.4 EB05 24.5 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=30 · ♀ 0% (drug 57%)not reported in cached trials
Catarrh3734.8
25.0–48.3ROR 34.8 · calibrated p 2e-4 ✓
32.8 EB05 24.9 · IC025 +4.0
3/3 methods agree
Not in label — unassessedserious n=37 · ♀ 0% (drug 57%) · 100% cliniciannot reported in cached trials
Forced expiratory volume decreased11734.5
28.7–41.5ROR 34.6 · calibrated p 1e-4 ✓
32.9 EB05 28.2 · IC025 +4.6
3/3 methods agree
Lab value / disease markerserious n=117not reported in cached trials
Renal artery stenosis5734.4
26.4–44.8ROR 34.4 · calibrated p 2e-4 ✓
32.7 EB05 26.1 · IC025 +4.2
3/3 methods agree
Labeled adverse reaction
exact term
serious n=57NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil (serious AE)
Steroid dependence3332.4
22.9–45.8ROR 32.4 · calibrated p 3e-4 ✓
30.6 EB05 22.8 · IC025 +3.8
3/3 methods agree
Not in label — unassessedserious n=33 · ♀ 0% (drug 57%) · 100% cliniciannot reported in cached trials
Carotid arteriosclerosis3830.9
22.3–42.7ROR 30.9 · calibrated p 3e-4 ✓
29.4 EB05 22.3 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=38 · ♀ 0% (drug 57%)not reported in cached trials
Sleep terror15330.2
25.7–35.5ROR 30.4 · calibrated p 3e-4 ✓
29.1 EB05 25.4 · IC025 +4.5
3/3 methods agree
Not in label — unassessedserious n=153not reported in cached trials
Arterial occlusive disease28029.4
26.2–33.2ROR 29.8 · calibrated p 3e-4 ✓
28.4 EB05 25.7 · IC025 +4.6
3/3 methods agree
Not in label — unassessedserious PRR 19.4 · ♀ 81% (drug 57%)not reported in cached trials
Gangrene20227.6
24.0–31.7ROR 27.8 · calibrated p 4e-4 ✓
26.6 EB05 23.7 · IC025 +4.4
3/3 methods agree
Not in label — unassessedserious n=202 · ♀ 100% (drug 57%) · 91% cliniciannot reported in cached trials

Trial evidence (ClinicalTrials.gov)

✓ Trial adverse-event data found on ClinicalTrials.gov

Largest completed trials with posted results that list Candesartan Cilexetil as a study intervention. The right-hand column of the signal table shows whether each FAERS term was also recorded in these trials, with a real denominator (1 of 40 signal terms matched).

Caveats: trial populations, doses and follow-up differ from the reporting population; AE terms are sponsor-coded and matched here by wording; absence from a trial list means the term was not reported above the sponsor's frequency threshold, not that it cannot occur.

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
Dyspnoea (shortness of breath)1,7242.4
2.3–2.6ROR 2.6 · calibrated p 0.791
2.4 EB05 2.3 · IC025 +1.2
3/3 methods agree
Not in label — unassessedserious PRR 2.1NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil
Fatigue (tiredness)1,7111.8
1.7–1.9ROR 1.8 · calibrated p 0.843
1.8 EB05 1.7 · IC025 +0.7Not in label — unassessedserious PRR 2.0not reported in cached trials
Nausea1,6491.7
1.6–1.8ROR 1.7 · calibrated p 0.784
1.7 EB05 1.6 · IC025 +0.7Not in label — unassessedserious PRR 1.9NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil (serious AE)
Headache1,5902.0
1.9–2.1ROR 2.1 · calibrated p 0.999
2.0 EB05 2.0 · IC025 +0.9Labeled adverse reaction
exact term
serious PRR 2.4NCT02166697: 9/13,804 (0.1%) on Candesartan Cilexetil
Drug ineffective (drug did not work)1,5741.0
0.9–1.0ROR 1.0 · calibrated p 0.278
1.0 EB05 0.9 · IC025 -0.1
PRR-only: not supported by EBGM or IC
Reporting / coding artifactserious PRR 1.5not reported in cached trials
Dizziness1,4912.4
2.3–2.5ROR 2.5 · calibrated p 0.817
2.4 EB05 2.3 · IC025 +1.2
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 2.4NCT02211638: 41/17,130 (0.2%) on Candesartan Cilexetil
Diarrhoea (diarrhea)1,3611.7
1.6–1.8ROR 1.7 · calibrated p 0.792
1.7 EB05 1.6 · IC025 +0.7Labeled — boxed warning
exact term
serious PRR 1.8NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil
Malaise (feeling unwell)1,3562.5
2.4–2.6ROR 2.6 · calibrated p 0.788
2.5 EB05 2.4 · IC025 +1.2
3/3 methods agree
Not in label — unassessedserious PRR 2.4NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil
Off label use (used outside approved label)1,2831.2
1.1–1.3ROR 1.2 · calibrated p 0.437
1.2 EB05 1.1 · IC025 +0.2Reporting / coding artifactserious PRR 1.3not reported in cached trials
Fall1,2783.1
2.9–3.3ROR 3.2 · calibrated p 0.565
3.1 EB05 2.9 · IC025 +1.5
3/3 methods agree
Not in label — unassessedserious PRR 2.3NCT02166697: 2/13,804 (0.0%) on Candesartan Cilexetil (serious AE)
Pain1,2041.6
1.5–1.7ROR 1.6 · calibrated p 0.705
1.6 EB05 1.5 · IC025 +0.6Labeled adverse reaction
exact term
serious PRR 1.5NCT02211638: 1/17,130 (0.0%) on Candesartan Cilexetil (serious AE)
Vomiting1,1462.0
1.9–2.1ROR 2.0 · calibrated p 0.948
2.0 EB05 1.9 · IC025 +0.9Labeled — boxed warning
exact term
serious PRR 1.8NCT02211638: 1/17,130 (0.0%) on Candesartan Cilexetil (serious AE)
Blood pressure increased1,1466.0
5.7–6.4ROR 6.3 · calibrated p 0.134
6.0 EB05 5.7 · IC025 +2.5
3/3 methods agree
Labeled — boxed warning
synonym match
serious PRR 5.0NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil (serious AE)
Hypertension (high blood pressure)1,1294.3
4.1–4.5ROR 4.4 · calibrated p 0.306
4.3 EB05 4.1 · IC025 +2.0
3/3 methods agree
Labeled — boxed warning
exact term
serious PRR 3.0NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil (serious AE)
Asthenia (weakness)1,0752.3
2.2–2.4ROR 2.4 · calibrated p 0.879
2.3 EB05 2.2 · IC025 +1.1
3/3 methods agree
Not in label — unassessedserious PRR 1.9NCT02166697: 1/13,804 (0.0%) on Candesartan Cilexetil

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.

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 Candesartan Cilexetil?

In FDA FAERS, the most frequently co-reported reaction terms for Candesartan Cilexetil are dyspnoea, fatigue, nausea, headache, dizziness, diarrhoea. 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 Candesartan Cilexetil have an FDA boxed warning?

Yes. The current FDA label carries a boxed warning: FETAL TOXICITY • When pregnancy is detected, discontinue candesartan cilexetil as soon as possible [see Warnings and Precautions ( 5.1 ) and Use in Specific Populations ( 8.1 )]. • Drugs that act directly on the reni.

Do FAERS signals prove that Candesartan Cilexetil 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.