MID-VOLUME · HOSP-HEAVY
theophylline Side Effects
theophylline (also sold as Theo-24, Elixophyllin) sits MID-VOLUME #299 of 524 by FAERS report count. Lead signal: HOSP-HEAVY - 43.6% mention hospitalization (5,109 reports). Demographics and serious-outcome tables follow.
Data updated 2026-05-15
- 11,723
- FAERS reports
FDA Adverse Event Reporting System extract for theophylline. Stamp set WATCHLIST · DEATH-HEAVY · HOSP-HEAVY. How figures are compiled.
theophylline: 43.6% mention hospitalization (5,109 reports). Death stamp DEATH-HEAVY; volume band MID-VOLUME #299 of 524 by FAERS report count.
Mid-book FAERS page for theophylline (Theo-24) (11,723 reports). Signature HOSP-HEAVY. Dominant age band on file: 45-64. Educational reference only.
Counts from the openFDA FAERS extract (1995–2025). Stamps WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
DYSPNOEA leads 2,273 of 11,723 reports
Who reports · age peak 45-64 (SEX-BALANCED)
Sex coding · SEX-BALANCED
Age peak 45-64 (2,683 reports)
FAERS filings rising toward 2025
Reactions in Death Reports
Death-mentioned subset is HEAVY here (1,708 reports, 14.6%). Top co-reported reactions in that subset - voluntary, not causal.
| Reaction | Reports |
|---|---|
| DEATH | 351 |
| CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 200 |
| DYSPNOEA | 185 |
| TOXICITY TO VARIOUS AGENTS | 152 |
| PNEUMONIA | 141 |
| RESPIRATORY FAILURE | 124 |
| COMPLETED SUICIDE | 105 |
| VOMITING | 105 |
| CONDITION AGGRAVATED | 104 |
| ANAEMIA | 103 |
| NAUSEA | 102 |
| SEPSIS | 100 |
| SOMNOLENCE | 88 |
| CARDIAC ARREST | 85 |
| DRUG INTERACTION | 83 |
| ABDOMINAL DISTENSION | 79 |
| GENERAL PHYSICAL HEALTH DETERIORATION | 78 |
| ABDOMINAL PAIN | 76 |
Reactions in Hospitalization Reports
Hospitalization is HEAVY (5,109, 43.6% of the book). Top reactions in those rows:
| Reaction | Reports |
|---|---|
| DYSPNOEA | 1,026 |
| ASTHMA | 850 |
| PNEUMONIA | 595 |
| CHRONIC OBSTRUCTIVE PULMONARY DISEASE | 497 |
| WHEEZING | 477 |
| COUGH | 407 |
| VOMITING | 383 |
| NAUSEA | 379 |
| THERAPEUTIC PRODUCT EFFECT INCOMPLETE | 316 |
| CONDITION AGGRAVATED | 302 |
| HYPERTENSION | 289 |
| FATIGUE | 276 |
| ANXIETY | 271 |
| PRODUCTIVE COUGH | 268 |
| ATRIAL FIBRILLATION | 261 |
| PYREXIA | 257 |
| DIZZINESS | 255 |
| DRUG INTERACTION | 237 |
How to read theophylline FAERS figures (WATCHLIST · DEATH-HEAVY · HOSP-HEAVY)
FAERS holds 11,723 voluntary reports linked to theophylline (Theo-24, Elixophyllin), 1995-2025. Death is listed on 1,708 (14.6%). Hospitalization appears on 5,109 (43.6%). Top co-reported indication: Asthma.
Mid-volume extract - treat DEATH-HEAVY · HOSP-HEAVY as signal-detection rates next to 43.6% mention hospitalization (5,109 reports).
Read with theophylline
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 11,724 FAERS cases (Δ 1 heavier vs theophylline); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,690 FAERS cases (Δ 33 lighter vs theophylline); DEATH-MARKED · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,539 FAERS cases (Δ 184 lighter vs theophylline); DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(total_reports) peer at 11,382 FAERS cases (Δ 341 lighter vs theophylline); DEATH-HEAVY · HOSP-MID · SEX-BALANCED vs this page's WATCHLIST · DEATH-HEAVY · HOSP-HEAVY · SEX-BALANCED.
ABS(death_share) pole at 62.1% death-mentioned reports (Δ 47.5 pp vs theophylline's DEATH-HEAVY): CASELOAD · HOSP-MID.
theophylline stamps DEATH-HEAVY · HOSP-HEAVY; FAERS outcome shares are signal-detection rates, not incidence. Read them next to caseload WATCHLIST and the label guide.