MID-VOLUME · SEX-BALANCED
guaifenesin Side Effects
guaifenesin (also sold as Mucinex) sits MID-VOLUME #194 of 524 by FAERS report count. Lead signal: SEX-BALANCED - 63% of sex-coded reports are female (17,337 F / 10,064 M). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 29,404
- FAERS reports
FDA Adverse Event Reporting System extract for guaifenesin. Stamp set CASELOAD · DEATH-HEAVY · HOSP-MID. How figures are compiled.
guaifenesin reporting skew - 63% of sex-coded reports are female (17,337 F / 10,064 M). Volume band MID-VOLUME #194 of 524 by FAERS report count; caseload CASELOAD.
Mid-book FAERS page for guaifenesin (Mucinex) (29,404 reports). Signature SEX-BALANCED. Dominant age band on file: 45-64. Educational reference only.
Counts from the openFDA FAERS extract (1998–2025). Stamps CASELOAD · DEATH-HEAVY · HOSP-MID · SEX-BALANCED.
DYSPNOEA leads 2,178 of 29,404 reports
Who reports · age peak 45-64 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 45-64 (5,618 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (2,163 reports, 7.4%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| DEATH | 915 |
| PNEUMONIA | 265 |
| DYSPNOEA | 204 |
| RESPIRATORY FAILURE | 179 |
| CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 139 |
| ASTHENIA | 136 |
| CARDIAC FAILURE CONGESTIVE | 119 |
| FATIGUE | 119 |
| SEPSIS | 112 |
| HYPOTENSION | 108 |
| NAUSEA | 106 |
| RENAL FAILURE | 105 |
| FALL | 103 |
| CARDIAC ARREST | 99 |
| ACUTE KIDNEY INJURY | 96 |
| DIARRHOEA | 94 |
| PAIN | 92 |
| COUGH | 87 |
| ANAEMIA | 86 |
| VOMITING | 83 |
Reactions in Hospitalization Reports
Hospitalization mid-share (7,581, 25.8%). Co-reported reactions:
| Reaction | Reports |
|---|---|
| PNEUMONIA | 1,320 |
| DYSPNOEA | 1,044 |
| NAUSEA | 618 |
| FATIGUE | 592 |
| FALL | 557 |
| PAIN | 543 |
| COUGH | 525 |
| DIARRHOEA | 518 |
| ASTHENIA | 476 |
| CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 446 |
| VOMITING | 418 |
| HEADACHE | 409 |
| DIZZINESS | 408 |
| PYREXIA | 406 |
| URINARY TRACT INFECTION | 402 |
| WEIGHT DECREASED | 370 |
| MALAISE | 348 |
| ANAEMIA | 334 |
| CARDIAC FAILURE CONGESTIVE | 328 |
| HYPOTENSION | 326 |
How to read guaifenesin FAERS figures (CASELOAD · DEATH-HEAVY · HOSP-MID)
FAERS holds 29,404 voluntary reports linked to guaifenesin (Mucinex), 1998-2025. Death is listed on 2,163 (7.4%). Hospitalization appears on 7,581 (25.8%). Top co-reported indication: Product Used For Unknown Indication.
Mid-volume extract - treat DEATH-HEAVY · HOSP-MID as signal-detection rates next to 63% of sex-coded reports are female (17,337 F / 10,064 M).
Read with guaifenesin
Peers ranked by ABS(total_reports), then an ABS(death_share) pole; guide hop follows DEATH-HEAVY · HOSP-MID stamps.
ABS(total_reports) peer at 29,380 FAERS cases (Δ 24 lighter vs guaifenesin); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's CASELOAD · DEATH-HEAVY · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 29,554 FAERS cases (Δ 150 heavier vs guaifenesin); DEATH-MARKED · HOSP-HEAVY · SEX-BALANCED vs this page's CASELOAD · DEATH-HEAVY · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 29,813 FAERS cases (Δ 409 heavier vs guaifenesin); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's CASELOAD · DEATH-HEAVY · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 29,874 FAERS cases (Δ 470 heavier vs guaifenesin); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's CASELOAD · DEATH-HEAVY · HOSP-MID · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 54.8 pp vs guaifenesin's DEATH-HEAVY): CASELOAD · HOSP-MID.
guaifenesin stamps DEATH-HEAVY · HOSP-MID; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload CASELOAD and the label guide.