Dexamethasone vs Methylprednisolone: side effects in FDA adverse event reports
At a glance
| Dexamethasone | Methylprednisolone | |
|---|---|---|
| Drug class | Corticosteroid | Corticosteroid |
| Brand names | – | – |
| FAERS reports | 294,871 | 137,404 |
| Serious | 84% | 90% |
| Death outcome | 47,727 | 23,035 |
| Boxed warning | No | No |
Signals both drugs share
| Reaction | Dexamethasone | Methylprednisolone | Label screen (A / B) |
|---|---|---|---|
| Secondary immunodeficiency | 260 · PRR 19.6 | 274 · PRR 45.3 | Labeled (related wording) / Labeled (related wording) |
| Mucormycosis | 409 · PRR 13.3 | 435 · PRR 30.9 | Not in label — unassessed / Not in label — unassessed |
| Strongyloidiasis | 245 · PRR 12.5 | 285 · PRR 32.4 | Not in label — unassessed / Not in label — unassessed |
| Mycobacterium chelonae infection | 143 · PRR 16.9 | 215 · PRR 62.8 | Not in label — unassessed / Not in label — unassessed |
Labeled signals distinctive to Dexamethasone
- None stood out among the strongest labeled signals.
Labeled signals distinctive to Methylprednisolone
- Graft versus host disease in gastrointestinal tract — n=419, PRR 37.3 Labeled (related wording)
- Steroid diabetes — n=320, PRR 42.7 Labeled (related wording)
Common questions
Which has more reported side effects, Dexamethasone or Methylprednisolone?
Dexamethasone has 294,871 FAERS reports and Methylprednisolone 137,404. More reports does not mean more dangerous: volume follows how widely and how long a drug has been used, prescription vs over-the-counter status, and publicity. The seriousness share (84% vs 90%) is a better like-for-like signal of the kind of problems reported.
Which side effects do Dexamethasone and Methylprednisolone share?
Both drugs carry disproportionality signals for secondary immunodeficiency, mucormycosis, strongyloidiasis, mycobacterium chelonae infection. Shared signals often reflect a shared drug class or the condition both are used for.
Is Dexamethasone or Methylprednisolone safer?
FAERS cannot answer that: it has no denominator and no comparator. Use this page to see which risks are already on each label and which signals are unlabeled, then check the prescribing information and your clinician for your situation.
Sources: openFDA FAERS pair statistics (OpenPV build 2026-09-14), FDA labels via openFDA, openFDA count queries for seriousness and deaths. Pair chosen because it is a commonly searched comparison. Generated 2026-10-08.