Drug
Nitrofurantoin Macrocrystals
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 | Skin Haemorrhage | 9 | 21.1 | 21.4 | signal |
| 2 | Cystitis | 17 | 18.0 | 18.4 | signal |
| 3 | Hepatic Encephalopathy | 4 | 14.5 | 14.6 | signal |
| 4 | Muscle Spasticity | 5 | 13.6 | 13.7 | signal |
| 5 | Sopor | 3 | 7.6 | 7.6 | signal |
| 6 | Multiple Sclerosis Relapse | 11 | 5.4 | 5.5 | signal |
| 7 | Multiple Sclerosis | 7 | 4.9 | 5.0 | signal |