Drug
Phenobarbital Sodium
Important: Reactions below are the flagged terms from this drug’s
FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate
disproportionality in spontaneous reporting, not causation.
Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.
| Reaction | Co-reports (a) | PRR | ROR | Signal | |
|---|---|---|---|---|---|
| 1 | Status Epilepticus | 21 | 97.0 | 102.3 | signal |
| 2 | Epilepsy | 27 | 46.2 | 49.4 | signal |
| 3 | Neutrophil Count Increased | 8 | 40.6 | 41.4 | signal |
| 4 | Pallor | 18 | 34.4 | 36.0 | signal |
| 5 | Drug Resistance | 15 | 30.5 | 31.6 | signal |
| 6 | Seizure | 67 | 30.5 | 36.4 | signal |
| 7 | Drug Reaction With Eosinophilia And Systemic Symptoms | 9 | 18.4 | 18.8 | signal |
| 8 | Drug Level Decreased | 3 | 15.3 | 15.4 | signal |
| 9 | Respiratory Depression | 3 | 12.8 | 12.9 | signal |
| 10 | Product Complaint | 4 | 8.4 | 8.4 | signal |
| 11 | Abortion Spontaneous | 6 | 7.8 | 7.9 | signal |