Ondansetron for Mild to moderate pain
Adult dosing has a median of 4 mg across 11 published protocols, with the middle half between 4 and 4.
Doses far off from what other protocols give are likely misreads, so they are left out until checked. How that works.
Adultmg
| min | p25 | median | p75 | max |
|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 |
Values in mg. One value per source (that source's median), so a document listing a medication five times still gets one vote.
Routes
- IV 25%
- IV/IM 17%
- IV/IO/IM 17%
- IM/ODT 8%
- IV/IM/ODT 8%
- IV/IO 8%
- IV/IO/IM/PO 8%
- PO 8%
United States EMS Protocol Census, n=11 protocols from 8 named agencies / 7 states, updated Oct 2026
Pediatric, weight-basedmg/kg
| min | p25 | median | p75 | max |
|---|---|---|---|---|
| 0.1 | 0.1 | 0.1 | 0.1375 | 0.15 |
Values in mg/kg. One value per source (that source's median), so a document listing a medication five times still gets one vote.
Routes
- IV 33%
- IV/IO 33%
- IV/IM 17%
- IV/IO/IM/PO 17%
United States EMS Protocol Census, n=6 protocols from 5 named agencies / 5 states, updated Oct 2026
Pediatricmg
Below 5 sources, so no distribution is published for this group — only the counts above.
Routes
- IV/IO 50%
- PO 50%
United States EMS Protocol Census, n=1 protocols from 1 named agencies / 1 states, updated Oct 2026
Named agencies with a page8
Agencies whose protocols are a public record are named here. Their own doses are on their own pages; this list carries no values.