Indication

Promethazine for Nausea / vomiting

1,335 under review37 sources35 named agencies15 statesas of 2026-09-20

Adult dosing has a median of 12.5 mg across 37 published protocols, with the middle half between 12.5 and 18.75.

37sources

35named agencies

15states

77entries

35named here

1,335 rows are under review across the census and excluded from every number on this page. How that works.

Adultmg

37sources

35named agencies

15states

55entries

0kept as written

min	p25	median	p75	max
6.25	12.5	12.5	18.75	25

Values in mg. One value per source (that source's median), so a document listing a drug five times still gets one vote.

Routes

IM 29%
IV 29%
IV/IM 18%
IM/PO 7%
IV/IO/IM/PO 6%
IV/IM/PR 4%
IV/IO 4%
IV/IO/IM 2%
PO 2%

United States EMS Protocol Census, n=37 protocols from 35 named agencies / 15 states, updated Sep 2026

Pediatric, weight-basedmg/kg

10sources

8named agencies

7states

20entries

0kept as written

min	p25	median	p75	max
0.25	0.25	0.25	0.4688	0.5

Values in mg/kg. One value per source (that source's median), so a document listing a drug five times still gets one vote.

Routes

IM 45%
IV 20%
IV/IM/PR 10%
IV/IO 10%
IM/PO 5%
IV/IO/IM/PO 5%
PO 5%

United States EMS Protocol Census, n=10 protocols from 8 named agencies / 7 states, updated Sep 2026

Adult, weight-basedmg/kg

1sources

1named agencies

1states

1entries

0kept as written

Below 5 sources, so no distribution is published for this group — only the counts above.

Routes

IV/IO 100%

United States EMS Protocol Census, n=1 protocols from 1 named agencies / 1 states, updated Sep 2026

Pediatricmg

1sources

1named agencies

1states

1entries

0kept as written

Below 5 sources, so no distribution is published for this group — only the counts above.

Routes

IV/IM 100%

United States EMS Protocol Census, n=1 protocols from 1 named agencies / 1 states, updated Sep 2026

Named agencies

Agencies whose protocols are a public record are named here. Their own doses are on their own pages; this list carries no values.