Fenofibric Acid side effects: what 775 FDA adverse event reports show
Drug class
Peroxisome Proliferator Receptor alpha Agonist
Who reports
775 reports · 58% serious · 76 with death outcome · 45% female
Used for
Fenofibric acid delayed-release capsules are indicated as adjunctive therapy to diet: to reduce triglyceride (TG) levels in adults with severe hypertriglyceridemia (TG greater than or equal to 500 mg/dL). to reduce elevated low-density lipoprotein cholesterol (LDL-C) in adults with primary hyperlipidemia when use of recommended LDL-C lowering therapy is not possible.
What it is
Fenofibric acid is a peroxisome proliferator-activated receptor (PPAR) alpha agonist available as delayed release capsules for oral administration. Each delayed release capsule contains choline fenofibrate, equivalent to 45 mg or 135 mg of fenofibric acid.
Boxed warning
None in the current label
Causality screen of the 8 strongest signals
What the badges mean
- Labeled (related wording) The label describes this effect under different wording (e.g. 'neutropenia' for 'neutrophil count decreased'). Treated as known.
- Reporting / coding artifact An administrative, monitoring or exposure term (product issue, off-label use, 'test normal', overdose...). Not a biological reaction; a high PRR here reflects how reports are coded.
- 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.
- Outcome field, not a reaction Death is a report outcome, not a reaction term. It is dominated by the underlying illness; see the seriousness profile and the boxed warning instead.
- 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 flags pairs whose reports are unusually skewed by sex or come mostly from consumers rather than clinicians. 7 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 |
|---|---|---|---|---|---|---|
| Blood triglycerides increased | 19 | 29.0 18.6–45.2ROR 29.7 · χ² 486 / p 6e-108 | 28.2 EB05 19.1 · IC025 +3.3 3/3 methods agree | Labeled (related wording) related wording | serious PRR 35.9 | no trial data cached |
| Nephropathy | 5 | 14.4 6.0–34.5ROR 14.5 · χ² 50 / p 9e-13 | 9.9 EB05 3.5 · IC025 +1.1 3/3 methods agree | Not in label — unassessed | serious PRR 12.2 | no trial data cached |
| Tendonitis | 8 | 13.9 7.0–27.7ROR 14.0 · χ² 83 / p 3e-20 | 11.4 EB05 5.1 · IC025 +1.8 3/3 methods agree | Not in label — unassessed | serious PRR 6.6 | no trial data cached |
| Upper gastrointestinal haemorrhage | 7 | 11.2 5.4–23.4ROR 11.3 · χ² 55 / p 5e-14 | 8.2 EB05 3.7 · IC025 +1.4 3/3 methods agree | Not in label — unassessed | serious PRR 11.2 | no trial data cached |
| Prostatic specific antigen increased | 5 | 9.8 4.1–23.4ROR 9.8 · χ² 31 / p 1e-8 | 6.2 EB05 2.6 · IC025 +0.9 3/3 methods agree | Lab value / disease marker | serious PRR 12.8 | no trial data cached |
| Product physical issue | 6 | 8.1 3.7–18.1ROR 8.2 · χ² 31 / p 1e-8 | 5.5 EB05 2.6 · IC025 +1.0 3/3 methods agree | Reporting / coding artifact | – | no trial data cached |
| Blood glucose decreased | 13 | 7.3 4.3–12.5ROR 7.4 · χ² 65 / p 5e-16 | 6.0 EB05 3.7 · IC025 +1.6 3/3 methods agree | Lab value / disease marker | serious PRR 11.5 | no trial data cached |
| Completed suicide (death by suicide) | 19 | 6.1 3.9–9.5ROR 6.2 · χ² 76 / p 1e-18 | 5.4 EB05 3.6 · IC025 +1.7 3/3 methods agree | Outcome field, not a reaction | serious PRR 6.1 | no trial data cached |
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 |
|---|---|---|---|---|---|---|
| Completed suicide (death by suicide) | 19 | 6.1 3.9–9.5ROR 6.2 · χ² 76 / p 1e-18 | 5.4 EB05 3.6 · IC025 +1.7 3/3 methods agree | Outcome field, not a reaction | serious PRR 6.1 | no trial data cached |
| Blood triglycerides increased | 19 | 29.0 18.6–45.2ROR 29.7 · χ² 486 / p 6e-108 | 28.2 EB05 19.1 · IC025 +3.3 3/3 methods agree | Labeled (related wording) related wording | serious PRR 35.9 | no trial data cached |
| Blood glucose decreased | 13 | 7.3 4.3–12.5ROR 7.4 · χ² 65 / p 5e-16 | 6.0 EB05 3.7 · IC025 +1.6 3/3 methods agree | Lab value / disease marker | serious PRR 11.5 | no trial data cached |
| Tendonitis | 8 | 13.9 7.0–27.7ROR 14.0 · χ² 83 / p 3e-20 | 11.4 EB05 5.1 · IC025 +1.8 3/3 methods agree | Not in label — unassessed | serious PRR 6.6 | no trial data cached |
| Upper gastrointestinal haemorrhage | 7 | 11.2 5.4–23.4ROR 11.3 · χ² 55 / p 5e-14 | 8.2 EB05 3.7 · IC025 +1.4 3/3 methods agree | Not in label — unassessed | serious PRR 11.2 | no trial data cached |
| Product physical issue | 6 | 8.1 3.7–18.1ROR 8.2 · χ² 31 / p 1e-8 | 5.5 EB05 2.6 · IC025 +1.0 3/3 methods agree | Reporting / coding artifact | – | no trial data cached |
| Prostatic specific antigen increased | 5 | 9.8 4.1–23.4ROR 9.8 · χ² 31 / p 1e-8 | 6.2 EB05 2.6 · IC025 +0.9 3/3 methods agree | Lab value / disease marker | serious PRR 12.8 | no trial data cached |
| Nephropathy | 5 | 14.4 6.0–34.5ROR 14.5 · χ² 50 / p 9e-13 | 9.9 EB05 3.5 · IC025 +1.1 3/3 methods agree | Not in label — unassessed | serious PRR 12.2 | no trial data cached |
| Wrong technique in drug usage process | 4 | 2.9 1.1–7.8ROR 2.9 · χ² 3 / p 0.034 | 2.4 EB05 1.1 · IC025 -0.5 PRR-only: not supported by EBGM or IC | Reporting / coding artifact | serious PRR 2.4 | no trial data cached |
| Blindness unilateral | 4 | 7.7 2.9–20.4ROR 7.7 · χ² 17 / p 2e-5 | 4.6 EB05 1.9 · IC025 +0.4 | Not in label — unassessed | serious PRR 7.9 | no trial data cached |
| Impaired driving ability | 4 | 9.5 3.6–25.2ROR 9.5 · χ² 23 / p 1e-6 | 5.5 EB05 2.2 · IC025 +0.5 3/3 methods agree | Not in label — unassessed | serious PRR 9.5 | no trial data cached |
| Product taste abnormal | 3 | 6.0 1.9–18.7ROR 6.0 · χ² 8 / p 0.002 | 3.6 EB05 1.4 · IC025 -0.3 PRR-only: not supported by EBGM or IC | Reporting / coding artifact | – | no trial data cached |
| Sexual dysfunction | 3 | 6.9 2.2–21.5ROR 7.0 · χ² 10 / p 8e-4 | 3.9 EB05 1.5 · IC025 -0.2 PRR-only: not supported by EBGM or IC | Not in label — unassessed | serious PRR 6.9 | no trial data cached |
| Internal haemorrhage | 3 | 7.1 2.3–21.9ROR 7.1 · χ² 10 / p 7e-4 | 3.9 EB05 1.5 · IC025 -0.1 PRR-only: not supported by EBGM or IC | Not in label — unassessed | serious PRR 7.2 | no trial data cached |
| Bipolar disorder | 3 | 7.4 2.4–22.9ROR 7.4 · χ² 11 / p 5e-4 | 4.1 EB05 1.5 · IC025 -0.1 PRR-only: not supported by EBGM or IC | Not in label — unassessed | serious PRR 8.4 | no trial data cached |
Unlabeled candidate signals
Every screened signal with n ≥ 20 was either labeled, an indication term, or an artifact pattern — no unlabeled candidate stood out in the top signals.
✓ A hand-written Bradford Hill causality assessment exists for this drug: Zoledronic acid (bisphosphonates) ↔ Osteonecrosis of the jaw.
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 Fenofibric Acid?
In FDA FAERS, the most frequently co-reported reaction terms for Fenofibric Acid are blood triglycerides increased, blood glucose decreased, tendonitis, upper gastrointestinal haemorrhage, prostatic specific antigen increased, nephropathy. 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 Fenofibric Acid have an FDA boxed warning?
No. The FDA label retrieved for Fenofibric Acid has no boxed warning; see the label's Warnings and Precautions for the recognised risks.
Do FAERS signals prove that Fenofibric Acid 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 9ad201de-fa62-4c49-bc61-ee09b9ba434c, effective 20250802; matched on
openfda.generic_name.exact:"FENOFIBRIC ACID") - 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, 15 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
Page generated 2026-10-08. 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.