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Drug side effects

ertapenem Side Effects

The reactions most often reported to the FDA for ertapenem (also sold as Invanz), with demographics, serious outcomes, and reporting trends.

Data updated 2026-05-15

3,848
FAERS reports

Data from the FDA Adverse Event Reporting System (FAERS), 2004 to 2025. A FAERS report records a temporal association, not proof of cause. See our methodology for how figures are compiled and de-duplicated.

The most commonly reported side effects of ertapenem come from 3,848 reports to the FDA, broken down here by frequency, patient demographics, and serious outcomes.

This page analyzes 3,848 reports to the FDA Adverse Event Reporting System (FAERS) for ertapenem (Invanz): the reactions reported most often, who reported them, serious outcomes such as hospitalization, and year-over-year trends. A FAERS report does not prove the drug caused the effect, and report volume tracks how widely a drug is used, not how likely an effect is for any one person. Educational information, not medical advice.

Total Reports

3,848

Reports Mentioning Death

339

8.8% of reports — not proof the medicine caused the death

Hospitalizations

1,953

50.8% of reports

Top Indication

Product Used For Unknown Indication

Most Reported Adverse Reactions

MACULAR DEGENERATION
768
PYREXIA
358
NAUSEA
293
PAIN
284
WEIGHT DECREASED
248
MALAISE
231
ANAEMIA
223
THERAPEUTIC PRODUCT EFFECT INCOMPLETE
221
CHRONIC SINUSITIS
213
PARAESTHESIA ORAL
212
INFUSION RELATED REACTION
208
ABDOMINAL PAIN
203
DYSPEPSIA
193
PROCEDURAL PAIN
192
HEADACHE
186
CONSTIPATION
181
CONFUSIONAL STATE
175
ERYTHEMA
175

Who Reports Side Effects

Gender Distribution

Female 1,799 (52%)
Male 1,632 (47%)
Unknown 41

Age Distribution

0-17 72 (3%)
18-44 435 (16%)
45-64 851 (31%)
65-74 747 (27%)
75+ 662 (24%)

Reporting Trend by Year

2004 2025

Reactions in Death Reports

Top reactions reported in 339 reports where death was an outcome. These are voluntarily reported and do not establish causation.

Reaction Reports
DEATH 57
SEPSIS 31
INFECTION 25
SEPTIC SHOCK 24
MULTIPLE ORGAN DYSFUNCTION SYNDROME 22
ANAEMIA 21
CARDIAC ARREST 21
BONE MARROW FAILURE 20
HYPOTENSION 20
PYREXIA 20
HYPOXIA 17
RESPIRATORY FAILURE 17
CARDIAC FAILURE 16
THROMBOCYTOPENIA 16
DRUG RESISTANCE 15
DYSPNOEA 14
NEUTROPENIA 14
PATHOGEN RESISTANCE 14

Reactions in Hospitalization Reports

Top reactions in 1,953 reports where hospitalization was an outcome.

Reaction Reports
PYREXIA 319
NAUSEA 261
PAIN 242
WEIGHT DECREASED 233
MACULAR DEGENERATION 230
MALAISE 217
THERAPEUTIC PRODUCT EFFECT INCOMPLETE 211
CHRONIC SINUSITIS 210
ANAEMIA 209
PARAESTHESIA ORAL 209
INFUSION RELATED REACTION 199
ABDOMINAL PAIN 192
DYSPEPSIA 190
PROCEDURAL PAIN 189
CONSTIPATION 177
HEADACHE 175
ERYTHEMA 170
COLITIS 168

Compare ertapenem vs amikacin →

What the FAERS Data Reveals About ertapenem Side Effects

The FDA Adverse Event Reporting System (FAERS) contains 3,848 voluntary reports linked to ertapenem and its brand equivalents (Invanz), spanning 2004 through 2025. Of those, 339 (8.8%) listed death as an outcome and 1,953 (50.8%) 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, 52% were female and 47% male; age distribution skews toward 45-64, with 851 reports in that bracket. The single most reported reaction is macular degeneration with 768 submissions, followed by pyrexia and nausea.

How to read these numbers

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.