Combating Illicit Xylazine Act (S. 545)
IntroducedLatest Action
Placed on Senate Legislative Calendar under General Orders. Calendar No. 372.
4/15/2026 • Senate
Summary
Combating Illicit Xylazine Act
This bill regulates xylazine under the Controlled Substances Act (CSA).
Xylazine, also known as tranq, is a nonopioid sedative and pain reliever that is approved for use in animals. Recently, the Drug Enforcement Administration (DEA) has reported an increase in trafficking of fentanyl mixed with xylazine.
This bill adds xylazine, including its salts, isomers, and salts of isomers, to schedule III of the CSA. Schedule III controlled substances, including anabolic steroids, buprenorphine, and ketamine, have less potential for abuse than a schedule I or II substance, have a currently accepted medical use, and have low or moderate risk of dependence if abused.
Under the bill, manufacturing, distributing, or dispensing xylazine, or possessing with intent to manufacture, distribute, or dispense xylazine for illicit use is subject to criminal penalties under the CSA. The bill also requires xylazine transactions to be tracked in the drug reporting system maintained by the DEA.
The bill exempts from registration under the CSA persons and entities that possess xylazine (1) lawfully dispensed by a veterinarian or pharmacy and (2) for an animal or for use in certain animal-control or wildlife programs.
The bill also exempts xylazine manufacturers from the CSA's physical security requirements.
Finally, the bill requires the DEA, in coordination with the Department of Health and Human Services (HHS), to provide Congress with a report on how the agencies previously determined whether xylazine should be a controlled substance, including the full text of HHS's recommendations to the DEA for scheduling xylazine.
Reported to Senate • 4/15/2026
Topics & Subjects
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Related Federal Spending
Sponsor & Cosponsors (36)
Party Breakdown
Sponsor
Cosponsors (35)
Bill Journey
Originated in the Senate
Introduced
February 12, 2025
Committee Review
March 26, 2026
Committee on the Judiciary. Ordered to be reported with an amendment in the nature of a substitute favorably.
Floor Debate
Passed Chamber
Other Chamber
President
Enacted into Law
Text Versions (2)
Related Bills (1)
Details
Sources and method
· Congress.gov, CRS, USAspending, FEC, LDA · Record updated Sep 16, 2026
- Congress.govLibrary of CongressStatus, actions, sponsors, cosponsors, committees and textRecord updated Sep 16, 2026 · Loaded Oct 30, 2026, 11:42 PM ET
- CRS bill summaryCongressional Research Service, via Congress.govOfficial summarySummary of the “Reported to Senate” version, Apr 15, 2026 · Loaded Oct 30, 2026, 11:42 PM ET
- USAspending.govU.S. Department of the TreasuryRelated Federal Spending section
- FEC filingsFederal Election CommissionFunding & Lobbying section
- Lobbying disclosures (LDA)Secretary of the Senate and Clerk of the HouseFunding & Lobbying section
All sources: Public domain (17 U.S.C. § 105) · Method: Data sources → · Campaign finance →
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