MID-VOLUME · HOSP-HEAVY
memantine Side Effects
memantine (also sold as Namenda) sits MID-VOLUME #290 of 524 by FAERS report count. Lead signal: HOSP-HEAVY - 41.0% mention hospitalization (5,255 reports). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 12,807
- FAERS reports
FDA Adverse Event Reporting System extract for memantine. Stamp set WATCHLIST · DEATH-HEAVY · HOSP-HEAVY. How figures are compiled.
memantine: 41.0% mention hospitalization (5,255 reports). Death stamp DEATH-HEAVY; volume band MID-VOLUME #290 of 524 by FAERS report count.
Mid-book FAERS page for memantine (Namenda) (12,807 reports). Signature HOSP-HEAVY. Dominant age band on file: 75+. Educational reference only.
Counts from the openFDA FAERS extract (2004–2025). Stamps WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
FALL leads 937 of 12,807 reports
Who reports · age peak 75+ (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 75+ (5,631 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (1,934 reports, 15.1%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| DEATH | 849 |
| PNEUMONIA | 118 |
| FALL | 107 |
| HALLUCINATION | 79 |
| PARKINSON^S DISEASE | 77 |
| CONDITION AGGRAVATED | 74 |
| CONFUSIONAL STATE | 72 |
| TOXICITY TO VARIOUS AGENTS | 68 |
| ASTHENIA | 67 |
| DEMENTIA | 67 |
| URINARY TRACT INFECTION | 64 |
| DYSPHAGIA | 63 |
| SEPSIS | 63 |
| COMPLETED SUICIDE | 54 |
| PNEUMONIA ASPIRATION | 50 |
| FATIGUE | 49 |
| DYSPNOEA | 48 |
| GENERAL PHYSICAL HEALTH DETERIORATION | 46 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (5,255, 41.0% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| FALL | 607 |
| CONFUSIONAL STATE | 330 |
| URINARY TRACT INFECTION | 299 |
| PNEUMONIA | 255 |
| ASTHENIA | 246 |
| FATIGUE | 243 |
| NAUSEA | 188 |
| DRUG INTERACTION | 187 |
| SOMNOLENCE | 180 |
| DEHYDRATION | 176 |
| VOMITING | 176 |
| DELIRIUM | 159 |
| CONDITION AGGRAVATED | 157 |
| HYPOTENSION | 157 |
| AGITATION | 156 |
| DIARRHOEA | 156 |
| DYSPNOEA | 154 |
| BRADYCARDIA | 153 |
How to read memantine FAERS figures (WATCHLIST · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 12,807 voluntary reports linked to memantine (Namenda), 2004-2025. Death is listed on 1,934 (15.1%). Hospitalization appears on 5,255 (41.0%). Top co-reported indication: Product Used For Unknown Indication.
Mid-volume extract - treat DEATH-HEAVY · HOSP-HEAVY as signal-detection rates next to 41.0% mention hospitalization (5,255 reports).
Read with memantine
Peers ranked by ABS(total_reports), then an ABS(death_share) pole; guide hop follows DEATH-HEAVY · HOSP-HEAVY stamps.
ABS(total_reports) peer at 12,794 FAERS cases (Δ 13 lighter vs memantine); DEATH-HEAVY · HOSP-HEAVY · MALE-LED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 12,855 FAERS cases (Δ 48 heavier vs memantine); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 12,758 FAERS cases (Δ 49 lighter vs memantine); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 12,726 FAERS cases (Δ 81 lighter vs memantine); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 47.0 pp vs memantine's DEATH-HEAVY): CASELOAD · HOSP-MID.
memantine stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload WATCHLIST and the label guide.