Drug
Glycerol Phenylbutyrate
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 | Gastroenteritis Viral | 27 | 23.1 | 23.5 | signal |
| 2 | Hypophagia | 28 | 17.1 | 17.4 | signal |
| 3 | Lethargy | 40 | 10.7 | 11.0 | signal |
| 4 | Pharyngitis Streptococcal | 7 | 10.0 | 10.0 | signal |
| 5 | Viral Infection | 21 | 9.8 | 9.9 | signal |
| 6 | Mental Status Changes | 17 | 9.4 | 9.6 | signal |
| 7 | Retching | 12 | 8.7 | 8.8 | signal |
| 8 | Brain Oedema | 7 | 8.6 | 8.6 | signal |
| 9 | Metabolic Acidosis | 16 | 7.8 | 7.9 | signal |
| 10 | Product Taste Abnormal | 6 | 6.9 | 6.9 | signal |
| 11 | Irritability | 25 | 6.4 | 6.5 | signal |
| 12 | Abnormal Behaviour | 15 | 5.8 | 5.9 | signal |
| 13 | Increased Appetite | 7 | 5.8 | 5.8 | signal |
| 14 | Status Epilepticus | 4 | 5.5 | 5.5 | signal |
| 15 | Product Odour Abnormal | 3 | 4.5 | 4.5 | signal |
| 16 | Aggression | 12 | 3.7 | 3.7 | signal |
| 17 | Drug Dose Omission | 27 | 2.5 | 2.5 | signal |
| 18 | Menstruation Irregular | 4 | 2.3 | 2.3 | no signal |
| 19 | Accidental Exposure To Product | 14 | 2.2 | 2.2 | signal |
| 20 | Myelosuppression | 4 | 1.8 | 1.8 | no signal |