LOW-VOLUME · HOSP-MID
colesevelam Side Effects
colesevelam (also sold as Welchol) is a LOW-VOLUME FAERS extract #489 of 524 by FAERS report count. Still opens on HOSP-MID: 29.1% mention hospitalization (277 reports).
Data updated 2026-05-15
- 952
- FAERS reports
Thinner FAERS book - still a temporal association ledger, not proof of cause. Methodology.
colesevelam: 29.1% mention hospitalization (277 reports). Death stamp DEATH-MARKED; volume band LOW-VOLUME #489 of 524 by FAERS report count.
Thinner FAERS extract for colesevelam (Welchol) (952 reports #489 of 524 by FAERS report count). 29.1% mention hospitalization (277 reports). Sparse books still carry named reaction rows when present; not medical advice.
Counts from the openFDA FAERS extract (2006–2025). Stamps SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
DIARRHOEA leads 121 of 952 reports
Who reports · age peak 45-64 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 45-64 (230 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death appears on 32 reports (3.4% - MARKED). Reactions below co-occur in those rows only.
| Reaction | Reports |
|---|---|
| DEATH | 10 |
| ASTHENIA | 4 |
| DIARRHOEA | 4 |
| FATIGUE | 4 |
| ACUTE KIDNEY INJURY | 3 |
| ANAEMIA | 3 |
| DEHYDRATION | 3 |
| DEPRESSION | 3 |
| DISEASE RECURRENCE | 3 |
| DYSPNOEA | 3 |
| GASTROINTESTINAL HAEMORRHAGE | 3 |
| HYPOTENSION | 3 |
| MYOCARDIAL INFARCTION | 3 |
| RENAL FAILURE | 3 |
| SEPSIS | 3 |
| VOLVULUS | 3 |
| ABDOMINAL PAIN | 2 |
| ATRIAL FIBRILLATION | 2 |
| CHRONIC KIDNEY DISEASE | 2 |
| CRYSTAL DEPOSIT INTESTINE | 2 |
Reactions in Hospitalization Reports
Hospitalization mid-share (277, 29.1%). Co-reported reactions:
| Reaction | Reports |
|---|---|
| DIARRHOEA | 32 |
| ABDOMINAL PAIN | 28 |
| NAUSEA | 23 |
| PNEUMONIA | 19 |
| WEIGHT DECREASED | 18 |
| ASTHENIA | 14 |
| FATIGUE | 14 |
| VOMITING | 14 |
| CROHN^S DISEASE | 13 |
| DRUG INTERACTION | 13 |
| DEHYDRATION | 12 |
| FALL | 12 |
| BILE ACID MALABSORPTION | 11 |
| CEREBROVASCULAR ACCIDENT | 11 |
| DYSPNOEA | 11 |
| PAIN | 11 |
| CLOSTRIDIUM DIFFICILE COLITIS | 10 |
| FUNCTIONAL GASTROINTESTINAL DISORDER | 10 |
How to read colesevelam FAERS figures (SIGNAL · DEATH-MARKED · HOSP-MID)
FAERS holds 952 voluntary reports linked to colesevelam (Welchol), 2006-2025. Death is listed on 32 (3.4%). Hospitalization appears on 277 (29.1%). Top co-reported indication: Product Used For Unknown Indication.
Sparse extract - named reactions and SEX-BALANCED skew still differ by drug; not a complete safety profile.
Read with colesevelam
Peers ranked by ABS(total_reports), then an ABS(death_share) pole; guide hop follows DEATH-MARKED · HOSP-MID stamps.
ABS(total_reports) peer at 923 FAERS cases (Δ 29 lighter vs colesevelam); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 911 FAERS cases (Δ 41 lighter vs colesevelam); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 905 FAERS cases (Δ 47 lighter vs colesevelam); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(total_reports) peer at 896 FAERS cases (Δ 56 lighter vs colesevelam); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's SIGNAL · DEATH-MARKED · HOSP-MID · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 58.7 pp vs colesevelam's DEATH-MARKED): CASELOAD · HOSP-MID.
colesevelam stamps SIGNAL · SEX-BALANCED; class peers and methodology beat restating the same FAERS caveats on every effects URL.