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quinapril Side Effects

Also known as: Accupril

Analysis of 6,775 adverse event reports submitted to the FDA from 2004 to 2025.

Total Reports

6,775

Death-Related

545

8.0% of reports

Hospitalizations

2,126

31.4% of reports

Top Indication

Product Used For Unknown Indication

Most Reported Adverse Reactions

DRUG INEFFECTIVE
465
FALL
420
NAUSEA
407
DYSPNOEA
404
PAIN
385
DIARRHOEA
350
FATIGUE
345
HYPOTENSION
293
CONSTIPATION
284
DIZZINESS
264
ASTHENIA
252
MALAISE
217
VOMITING
217
BALANCE DISORDER
216
HEADACHE
215
OFF LABEL USE
208
NO ADVERSE EVENT
205
RECALLED PRODUCT ADMINISTERED
203
PAIN IN EXTREMITY
202
WEIGHT DECREASED
201

Who Reports Side Effects

Gender Distribution

Female 3,286 (53%)
Male 2,961 (47%)
Unknown 7

Age Distribution

0-17 30 (1%)
18-44 133 (3%)
45-64 1,469 (34%)
65-74 1,360 (31%)
75+ 1,329 (31%)

Reporting Trend by Year

2004 2025

Reactions in Death Reports

Top reactions reported in 545 reports where death was an outcome. These are voluntarily reported and do not establish causation.

Reaction Reports
DEATH 188
PNEUMONIA 51
DYSPNOEA 48
NAUSEA 39
ACUTE KIDNEY INJURY 38
FATIGUE 36
SEPSIS 36
RENAL FAILURE 34
CARDIAC FAILURE 33
ARRHYTHMIA 32
PAIN IN EXTREMITY 30
VOMITING 29
ASTHENIA 28
PAIN 27
DIARRHOEA 26
RENAL IMPAIRMENT 26
CARDIAC ARREST 25
PYREXIA 25
RESPIRATORY FAILURE 25
CEREBROVASCULAR ACCIDENT 24

Reactions in Hospitalization Reports

Top reactions in 2,126 reports where hospitalization was an outcome.

Reaction Reports
FALL 300
HYPOTENSION 239
PAIN 219
CONSTIPATION 204
BALANCE DISORDER 183
COGNITIVE DISORDER 183
ORTHOSTATIC HYPOTENSION 181
DYSPNOEA 177
SEDATION COMPLICATION 169
TOXICITY TO VARIOUS AGENTS 167
SEDATION 166
DEPRESSED LEVEL OF CONSCIOUSNESS 148
BLOOD CALCIUM DECREASED 147
CREATININE RENAL CLEARANCE DECREASED 142
NAUSEA 138
MOBILITY DECREASED 136
FATIGUE 125
ASTHENIA 120
PNEUMONIA 115
VOMITING 104

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What the FAERS Data Reveals About quinapril Side Effects

The FDA Adverse Event Reporting System (FAERS) contains 6,775 voluntary reports linked to quinapril and its brand equivalents (Accupril), spanning 2004 through 2025. Of those, 545 (8.0%) listed death as an outcome and 2,126 (31.4%) involved hospitalization. The most common indication reported alongside adverse events was Product Used For Unknown Indication.

Demographic breakdowns help contextualize who is being exposed to the drug. Of reports with known sex, 53% were female and 47% male; age distribution skews toward 45-64, with 1,469 reports in that bracket. The single most reported reaction is drug ineffective with 465 submissions, followed by fall and nausea.

FAERS is a signal-detection tool, not a scorecard. Reports are voluntary, and a single case may list multiple suspect drugs, so numbers above should not be read as incidence rates or per-patient risk. Widely prescribed drugs naturally accumulate more reports than niche therapies even when individual risk is low. These aggregates are useful for spotting patterns that merit further pharmacovigilance, not for choosing between medications. This page is for educational reference only and is not medical advice — speak with a licensed clinician about any side-effect concerns.