Sumatriptan and Naproxen side effects: what 1,423 FDA adverse event reports show
Drug class
Serotonin-1b and Serotonin-1d Receptor Agonist
Label matched
Sumatriptan (Tosymra)
Who reports
1,423 reports · 33% serious · 24 with death outcome · 88% female
Used for
TOSYMRA is indicated for the acute treatment of migraine with or without aura in adults. TOSYMRA is a serotonin (5-HT 1B/1D ) receptor agonist (triptan) indicated for the acute treatment of migraine with or without aura in adults ( 1 ) Limitations of U.
What it is
TOSYMRA contains sumatriptan, a selective 5-HT 1B/1D receptor agonist. Sumatriptan is chemically designated as 1-[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]- N -methylmethanesulfonamide, and it has the following structure:
Boxed warning
None in the current label
Causality screen of the 22 strongest signals
What the badges mean
- 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.
- Likely indication confounding The term appears in the label's indications: reports probably describe the disease being treated (or its progression), not a drug effect. Classic confounding by indication.
- 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.
- 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. 8 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 |
|---|---|---|---|---|---|---|
| Muscle tightness | 18 | 16.4 10.4–26.0ROR 16.6 · χ² 246 / p 1e-55 | 15.9 EB05 10.2 · IC025 +2.7 3/3 methods agree | Not in label — unassessed | serious PRR 6.2 | no trial data cached |
| Throat tightness | 28 | 15.3 10.6–22.1ROR 15.6 · χ² 360 / p 1e-80 | 15.0 EB05 10.6 · IC025 +3.0 3/3 methods agree | Labeled (related wording) related wording | serious PRR 8.3 · 92% consumer | no trial data cached |
| Migraine | 93 | 14.5 11.9–17.6ROR 15.4 · χ² 1,158 / p 5e-254 | 14.4 EB05 12.1 · IC025 +3.4 3/3 methods agree | Likely indication confounding term in indications; also in warnings | serious PRR 19.8 · 76% consumer | no trial data cached |
| Gallbladder disorder | 11 | 9.1 5.0–16.3ROR 9.1 · χ² 71 / p 2e-17 | 7.3 EB05 4.1 · IC025 +1.7 3/3 methods agree | Not in label — unassessed | serious PRR 15.9 | no trial data cached |
| Foot fracture | 11 | 8.5 4.7–15.4ROR 8.6 · χ² 66 / p 2e-16 | 6.8 EB05 3.9 · IC025 +1.7 3/3 methods agree | Not in label — unassessed | serious PRR 14.6 | no trial data cached |
| Nephropathy | 5 | 7.9 3.3–18.9ROR 7.9 · χ² 23 / p 6e-7 | 5.1 EB05 2.3 · IC025 +0.7 3/3 methods agree | Not in label — unassessed | serious PRR 14.7 | no trial data cached |
| Pain in jaw | 14 | 7.3 4.3–12.3ROR 7.4 · χ² 70 / p 3e-17 | 6.1 EB05 3.8 · IC025 +1.7 3/3 methods agree | Labeled (related wording) related wording | serious PRR 3.0 | no trial data cached |
| Drug administration error | 15 | 7.1 4.3–11.8ROR 7.2 · χ² 73 / p 7e-18 | 6.0 EB05 3.8 · IC025 +1.7 3/3 methods agree | Reporting / coding artifact | serious PRR 2.5 | no trial data cached |
| Serotonin syndrome | 9 | 6.9 3.6–13.3ROR 7.0 · χ² 40 / p 1e-10 | 5.4 EB05 3.0 · IC025 +1.3 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 12.3 | no trial data cached |
| Fibromyalgia | 11 | 6.7 3.7–12.0ROR 6.7 · χ² 48 / p 3e-12 | 5.4 EB05 3.2 · IC025 +1.4 3/3 methods agree | Not in label — unassessed | serious PRR 8.4 | no trial data cached |
| Product physical issue | 9 | 6.7 3.5–12.8ROR 6.7 · χ² 38 / p 4e-10 | 5.2 EB05 2.9 · IC025 +1.2 3/3 methods agree | Reporting / coding artifact | serious n=2 | no trial data cached |
| Pharyngeal oedema | 7 | 6.6 3.2–13.9ROR 6.7 · χ² 28 / p 6e-8 | 4.9 EB05 2.5 · IC025 +1.0 3/3 methods agree | Not in label — unassessed | serious PRR 4.4 | no trial data cached |
| Sensory disturbance | 7 | 6.4 3.1–13.4ROR 6.4 · χ² 27 / p 1e-7 | 4.7 EB05 2.5 · IC025 +0.9 3/3 methods agree | Not in label — unassessed | serious PRR 2.5 | no trial data cached |
| Application site irritation | 5 | 5.9 2.5–14.2ROR 5.9 · χ² 16 / p 3e-5 | 4.1 EB05 1.9 · IC025 +0.5 | Labeled (related wording) related wording | serious n=3 | no trial data cached |
| Drug effect decreased | 19 | 5.1 3.3–8.0ROR 5.2 · χ² 59 / p 7e-15 | 4.6 EB05 3.1 · IC025 +1.4 3/3 methods agree | Reporting / coding artifact | serious PRR 8.2 | no trial data cached |
| Impaired work ability | 7 | 4.8 2.3–10.1ROR 4.8 · χ² 18 / p 1e-5 | 3.8 EB05 2.0 · IC025 +0.6 3/3 methods agree | Not in label — unassessed | serious PRR 3.1 | no trial data cached |
| Therapeutic response unexpected | 14 | 4.6 2.7–7.7ROR 4.6 · χ² 36 / p 1e-9 | 4.0 EB05 2.6 · IC025 +1.1 3/3 methods agree | Reporting / coding artifact | serious PRR 13.5 | no trial data cached |
| Wrong technique in drug usage process | 11 | 4.4 2.4–7.9ROR 4.4 · χ² 26 / p 2e-7 | 3.8 EB05 2.3 · IC025 +0.9 3/3 methods agree | Reporting / coding artifact | serious PRR 7.0 | no trial data cached |
| Application site erythema | 7 | 3.9 1.9–8.2ROR 3.9 · χ² 12 / p 2e-4 | 3.2 EB05 1.7 · IC025 +0.4 | Labeled (related wording) related wording | serious n=4 | no trial data cached |
| Injection site urticaria | 6 | 3.7 1.6–8.1ROR 3.7 · χ² 9 / p 0.001 | 3.0 EB05 1.5 · IC025 +0.2 | Not in label — unassessed | serious n=2 | no trial data cached |
| Drug effect incomplete | 7 | 2.8 1.3–5.9ROR 2.8 · χ² 6 / p 0.006 | 2.5 EB05 1.3 · IC025 +0.0 | Reporting / coding artifact | serious PRR 11.1 | no trial data cached |
| Multiple sclerosis | 8 | 2.5 1.2–4.9ROR 2.5 · χ² 6 / p 0.009 | 2.3 EB05 1.3 · IC025 -0.0 PRR-only: not supported by EBGM or IC | Not in label — unassessed | serious PRR 4.0 | 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 |
|---|---|---|---|---|---|---|
| Migraine | 93 | 14.5 11.9–17.6ROR 15.4 · χ² 1,158 / p 5e-254 | 14.4 EB05 12.1 · IC025 +3.4 3/3 methods agree | Likely indication confounding term in indications; also in warnings | serious PRR 19.8 · 76% consumer | no trial data cached |
| Throat tightness | 28 | 15.3 10.6–22.1ROR 15.6 · χ² 360 / p 1e-80 | 15.0 EB05 10.6 · IC025 +3.0 3/3 methods agree | Labeled (related wording) related wording | serious PRR 8.3 · 92% consumer | no trial data cached |
| Drug effect decreased | 19 | 5.1 3.3–8.0ROR 5.2 · χ² 59 / p 7e-15 | 4.6 EB05 3.1 · IC025 +1.4 3/3 methods agree | Reporting / coding artifact | serious PRR 8.2 | no trial data cached |
| Muscle tightness | 18 | 16.4 10.4–26.0ROR 16.6 · χ² 246 / p 1e-55 | 15.9 EB05 10.2 · IC025 +2.7 3/3 methods agree | Not in label — unassessed | serious PRR 6.2 | no trial data cached |
| Drug administration error | 15 | 7.1 4.3–11.8ROR 7.2 · χ² 73 / p 7e-18 | 6.0 EB05 3.8 · IC025 +1.7 3/3 methods agree | Reporting / coding artifact | serious PRR 2.5 | no trial data cached |
| Therapeutic response unexpected | 14 | 4.6 2.7–7.7ROR 4.6 · χ² 36 / p 1e-9 | 4.0 EB05 2.6 · IC025 +1.1 3/3 methods agree | Reporting / coding artifact | serious PRR 13.5 | no trial data cached |
| Pain in jaw | 14 | 7.3 4.3–12.3ROR 7.4 · χ² 70 / p 3e-17 | 6.1 EB05 3.8 · IC025 +1.7 3/3 methods agree | Labeled (related wording) related wording | serious PRR 3.0 | no trial data cached |
| Wrong technique in drug usage process | 11 | 4.4 2.4–7.9ROR 4.4 · χ² 26 / p 2e-7 | 3.8 EB05 2.3 · IC025 +0.9 3/3 methods agree | Reporting / coding artifact | serious PRR 7.0 | no trial data cached |
| Fibromyalgia | 11 | 6.7 3.7–12.0ROR 6.7 · χ² 48 / p 3e-12 | 5.4 EB05 3.2 · IC025 +1.4 3/3 methods agree | Not in label — unassessed | serious PRR 8.4 | no trial data cached |
| Foot fracture | 11 | 8.5 4.7–15.4ROR 8.6 · χ² 66 / p 2e-16 | 6.8 EB05 3.9 · IC025 +1.7 3/3 methods agree | Not in label — unassessed | serious PRR 14.6 | no trial data cached |
| Gallbladder disorder | 11 | 9.1 5.0–16.3ROR 9.1 · χ² 71 / p 2e-17 | 7.3 EB05 4.1 · IC025 +1.7 3/3 methods agree | Not in label — unassessed | serious PRR 15.9 | no trial data cached |
| Completed suicide (death by suicide) | 10 | 1.8 0.9–3.3ROR 1.8 · χ² 3 / p 0.056 | 1.7 EB05 1.0 · IC025 -0.3 PRR-only: not supported by EBGM or IC | Outcome field, not a reaction | serious PRR 3.1 | no trial data cached |
| Injection site bruising | 10 | 1.9 1.0–3.5ROR 1.9 · χ² 3 / p 0.036 | 1.8 EB05 1.1 · IC025 -0.2 PRR-only: not supported by EBGM or IC | Not in label — unassessed | serious PRR 4.0 | no trial data cached |
| Product physical issue | 9 | 6.7 3.5–12.8ROR 6.7 · χ² 38 / p 4e-10 | 5.2 EB05 2.9 · IC025 +1.2 3/3 methods agree | Reporting / coding artifact | serious n=2 | no trial data cached |
| Serotonin syndrome | 9 | 6.9 3.6–13.3ROR 7.0 · χ² 40 / p 1e-10 | 5.4 EB05 3.0 · IC025 +1.3 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 12.3 | 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.
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 Sumatriptan and Naproxen?
In FDA FAERS, the most frequently co-reported reaction terms for Sumatriptan and Naproxen are migraine, throat tightness, muscle tightness, pain in jaw, fibromyalgia, foot fracture. 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 Sumatriptan and Naproxen have an FDA boxed warning?
No. The FDA label retrieved for Sumatriptan and Naproxen has no boxed warning; see the label's Warnings and Precautions for the recognised risks.
Do FAERS signals prove that Sumatriptan and Naproxen 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 015a5cf9-f246-48bc-b91e-cd730a53d8aa, effective 20241118; matched on
openfda.generic_name.exact:"SUMATRIPTAN") - 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, 30 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.