---
type: "Bill"
title: "Medical prescriptions-off-label purposes."
description: "2025/Summaries/HB0164.pdf"
jurisdiction: "us/states/wy"
legislature: "Wyoming Legislature"
session: "2025"
identifier: "HB 164"
citation: "Wyoming HB 164 (2025)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Brown, G"]
version_count: 10
action_count: 23
vote_count: 5
first_action: "2025-01-14T00:19:12+00:00"
last_action: "2025-03-19T15:38:19+00:00"
source: "openstates"
source_identifier: "ocd-bill/e4dca2d8-a71c-4bb5-9ab0-edbabd53295a"
source_url: "https://wyoleg.gov/Legislation/2025/HB0164"
source_hash: "428646ab72cefb4682b48225023e98a05f8d09c349b0dba29e20884071856ec3"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-wy"]
---

# Wyoming HB 164 (2025) — Medical prescriptions-off-label purposes.

2025/Summaries/HB0164.pdf

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://wyoleg.gov/2025/Introduced/HB0164.pdf)
2. **Amendment HB0164H3001 (3rd reading) - Representative Campbell, E (Failed)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164H3001.pdf)
3. **Amendment HB0164H3002 (3rd reading) - Representative Singh (Failed)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164H3002.pdf)
4. **Amendment HB0164H3003 (3rd reading) - Representative Clouston (Adopted)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164H3003.pdf)
5. **Amendment HB0164HS001 (Standing Committee) - House Labor, Health and Social Services Committee (Adopted)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164HS001.pdf)
6. **Amendment HB0164HW001 (Committee of the Whole) - Representative Chestek (Failed)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164HW001.pdf)
7. **Amendment HB0164HW002 (Committee of the Whole) - Representative Clouston (Failed)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164HW002.pdf)
8. **Amendment HB0164S2001 (2nd reading) - Senator Brennan (Withdrawn)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164S2001.pdf)
9. **Amendment HB0164SS001 (Standing Committee) - Senate Labor, Health and Social Services Committee (Adopted)** (committee substitute) — [source](https://wyoleg.gov/2025/Amends/HB0164SS001.pdf)
10. **Enrolled** (enrolled) — [source](https://wyoleg.gov/2025/Enroll/HB0164.pdf)

## Votes

- S10 - Labor:Recommend Amend and Do Pass 3-2-0-0-0 — **3–2** (pass) · upper
- H 3rd Reading:Passed 42-15-5-0-0 — **42–15** (pass) · lower
- H Concur:Passed 54-7-1-0-0 — **54–7** (pass) · lower
- H10 - Labor:Recommend Amend and Do Pass 7-1-1-0-0 — **7–1** (pass) · lower
- S 3rd Reading:Passed 22-9-0-0-0 — **22–9** (pass) · upper

## Sponsors

- Brown, G — primary (person)
- Allemand — cosponsor (person)
- Guggenmos — cosponsor (person)
- Haroldson — cosponsor (person)
- Hutchings — cosponsor (person)
- Ide — cosponsor (person)
- Johnson — cosponsor (person)
- Kelly — cosponsor (person)
- Lien — cosponsor (person)
- Lucas — cosponsor (person)
- Neiman — cosponsor (person)
- Ottman — cosponsor (person)
- Pendergraft — cosponsor (person)
- Schmid — cosponsor (person)
- Strock — cosponsor (person)
- Wasserburger — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-03-19T15:38:19+00:00** Assigned Chapter Number 164 `became-law`
- **2025-03-19T15:38:02+00:00** Governor Signed HEA No. 0074 `executive-signature`
- **2025-03-05T22:16:31+00:00** S President Signed HEA No. 0074
- **2025-03-05T21:22:26+00:00** H Speaker Signed HEA No. 0074
- **2025-03-05T19:06:07+00:00** Assigned Number HEA No. 0074
- **2025-03-05T18:06:34+00:00** H Concur:Passed 54-7-1-0-0
- **2025-03-05T15:35:57+00:00** H Received for Concurrence
- **2025-03-05T00:00:02+00:00** S 3rd Reading:Passed 22-9-0-0-0 `passage, reading-3`
- **2025-03-03T18:09:24+00:00** S 2nd Reading:Passed `reading-2`
- **2025-02-28T17:43:08+00:00** S 2nd Reading:Laid Back
- **2025-02-28T02:35:52+00:00** S COW:Passed `committee-passage-favorable`
- **2025-02-27T17:33:34+00:00** S Placed on General File
- **2025-02-27T17:33:27+00:00** S10 - Labor:Recommend Amend and Do Pass 3-2-0-0-0 `committee-passage-favorable`
- **2025-02-10T19:34:04+00:00** S Introduced and Referred to S10 - Labor `introduction, referral-committee`
- **2025-02-04T15:19:29+00:00** S Received for Introduction `filing`
- **2025-02-03T19:01:53+00:00** H 3rd Reading:Passed 42-15-5-0-0 `passage, reading-3`
- **2025-01-31T17:27:31+00:00** H 2nd Reading:Passed `reading-2`
- **2025-01-31T01:18:46+00:00** H COW:Passed `committee-passage-favorable`
- **2025-01-28T00:15:53+00:00** H Placed on General File
- **2025-01-28T00:15:39+00:00** H10 - Labor:Recommend Amend and Do Pass 7-1-1-0-0 `committee-passage-favorable`
- **2025-01-21T17:53:10+00:00** H Introduced and Referred to H10 - Labor `introduction, referral-committee`
- **2025-01-14T16:23:50+00:00** H Received for Introduction `filing`
- **2025-01-14T00:19:12+00:00** Bill Number Assigned `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e4dca2d8-a71c-4bb5-9ab0-edbabd53295a`. Confidence: reported (aggregated from official Wyoming legislature records).