Ibuprofen vs Diclofenac 1%: side effects in FDA adverse event reports
At a glance
| Ibuprofen | Diclofenac 1% | |
|---|---|---|
| Drug class | Nonsteroidal Anti-inflammatory Drug | – |
| Brand names | – | Diclofenac Sodium |
| FAERS reports | 269,923 | 35,508 |
| Serious | 65% | 78% |
| Death outcome | 18,300 | 6,889 |
| Boxed warning | Yes Cardiovascular Thrombotic Events • Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including | No |
Signals both drugs share
| Reaction | Ibuprofen | Diclofenac 1% | Label screen (A / B) |
|---|---|---|---|
| Glossodynia | 3,142 · PRR 12.6 | 5,736 · PRR 204.3 | Labeled (related wording) / No label text to screen |
| Duodenal ulcer perforation | 2,987 · PRR 53.0 | 3,741 · PRR 620.8 | Labeled — boxed warning / No label text to screen |
| Sleep disorder due to general medical condition, insomnia type | 2,296 · PRR 42.8 | 1,762 · PRR 223.1 | Labeled (related wording) / No label text to screen |
| Pemphigus | 2,949 · PRR 23.9 | 5,732 · PRR 509.9 | Not in label — unassessed / No label text to screen |
| Hand deformity | 2,887 · PRR 21.8 | 5,238 · PRR 397.0 | Not in label — unassessed / No label text to screen |
| Synovitis | 3,270 · PRR 17.0 | 4,593 · PRR 202.1 | Not in label — unassessed / No label text to screen |
| Pericarditis | 3,201 · PRR 18.3 | 4,482 · PRR 217.9 | Not in label — unassessed / No label text to screen |
| Helicobacter infection | 2,915 · PRR 30.8 | 3,696 · PRR 337.7 | Not in label — unassessed / No label text to screen |
| Folliculitis | 2,946 · PRR 30.7 | 3,101 · PRR 254.3 | Not in label — unassessed / No label text to screen |
| Muscle injury | 3,029 · PRR 45.2 | 2,608 · PRR 276.2 | Not in label — unassessed / No label text to screen |
| Rheumatic fever | 1,329 · PRR 33.7 | 2,767 · PRR 1,041.7 | Likely indication confounding / No label text to screen |
| Lip dry | 1,115 · PRR 10.9 | 1,679 · PRR 136.3 | Not in label — unassessed / No label text to screen |
| Facet joint syndrome | 827 · PRR 27.4 | 1,628 · PRR 638.1 | Not in label — unassessed / No label text to screen |
| Deep vein thrombosis postoperative | 865 · PRR 61.1 | 1,238 · PRR 1,031.6 | Not in label — unassessed / No label text to screen |
| Peripheral venous disease | 770 · PRR 18.4 | 1,265 · PRR 274.9 | Not in label — unassessed / No label text to screen |
| Adjustment disorder with depressed mood | 747 · PRR 45.4 | 942 · PRR 522.8 | Not in label — unassessed / No label text to screen |
| Dislocation of vertebra | 675 · PRR 33.6 | 944 · PRR 438.6 | Not in label — unassessed / No label text to screen |
| Lupus vulgaris | 461 · PRR 48.8 | 840 · PRR 1,458.5 | Not in label — unassessed / No label text to screen |
| Retinitis | 383 · PRR 22.9 | 718 · PRR 449.1 | Not in label — unassessed / No label text to screen |
| Porphyria acute | 228 · PRR 15.2 | 320 · PRR 178.5 | Not in label — unassessed / No label text to screen |
Labeled signals distinctive to Ibuprofen
- Fixed eruption — n=228, PRR 11.9 Labeled (related wording)
- Gastric ulcer perforation — n=216, PRR 15.8 Labeled — boxed warning
Labeled signals distinctive to Diclofenac 1%
- None stood out among the strongest labeled signals.
Common questions
Which has more reported side effects, Ibuprofen or Diclofenac 1%?
Ibuprofen has 269,923 FAERS reports and Diclofenac 1% 35,508. More reports does not mean more dangerous: volume follows how widely and how long a drug has been used, prescription vs over-the-counter status, and publicity. The seriousness share (65% vs 78%) is a better like-for-like signal of the kind of problems reported.
Which side effects do Ibuprofen and Diclofenac 1% share?
Both drugs carry disproportionality signals for glossodynia, duodenal ulcer perforation, sleep disorder due to general medical condition, insomnia type, pemphigus, hand deformity. Shared signals often reflect a shared drug class or the condition both are used for.
Is Ibuprofen or Diclofenac 1% safer?
FAERS cannot answer that: it has no denominator and no comparator. Use this page to see which risks are already on each label and which signals are unlabeled, then check the prescribing information and your clinician for your situation.
Sources: openFDA FAERS pair statistics (OpenPV build 2026-09-14), FDA labels via openFDA, openFDA count queries for seriousness and deaths. Pair chosen because it is a commonly searched comparison. Generated 2026-10-08.