Drug
Papaverine Hydrochloride
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 | Blood Calcium Decreased | 15 | 281.9 | 332.1 | signal |
| 2 | Orthostatic Hypotension | 15 | 182.2 | 214.6 | signal |
| 3 | Sedation | 15 | 121.9 | 143.5 | signal |
| 4 | Drug Abuse | 15 | 38.0 | 44.6 | signal |