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Salbutamol (albuterol) withdrawal and detection times for horses

Salbutamol (albuterol) is a bronchodilator, also sold as Salbutamol. Below: how 7 show and racing governing bodies list it, every published detection time for the dose and route studied, and the document and page each value comes from.USEF: Permitted with conditionsFEI: Controlled Medication, detection time 96 h (4 days)HISA/HIWU: detection time 72 h (3 days)named in the rules of 21 state racing commissions

Published detection times for Salbutamol

Each row is one study the governing body published: its own dose, route and formulation. A different dose or route was not studied, and the body says so.

Body and documentDose and route studiedFormulationHorsesDetection time
USEF (US Equestrian)
2026 (last revised 1 Dec 2025; amendments effect… p. 11
dose not stated in the row168 h (7 days)
plasma / urine
FEI
2024 (16 December 2024) p. 2
0.5mg (5 actuations) q.i.d, · inhaledVentolin696 h (4 days)
HISA / HIWU
Last updated on December 8th, 2023 p. 2
5 x 100 μg actuations per dose for 2 days dosed every 4 hours72 h (3 days)
urine
HISA / HIWU
080624 p. 3
5 x 100 μg actuations per dose for 2 days dosed every 4 hours72 h (3 days)
urine
IFHA / EHSLC
Undated PDF p. 3
5 x 100µg actuations per dose for 2 days at 4 hourly dosing during the day · inhaledVentolin Evohaler® Allen & Hansburys672 h (3 days)
urine
RMTC (advisory)
Updated September 30, 2024 p. 3
5 x 100 µg actuations per dose for 2 days dosed every 4 hours Inhalation · inhaled72 h (3 days)

How each rulebook lists Salbutamol

Transcribed from the governing bodies' own documents. Each entry links to the document and quotes the row it came from.

USEF (US Equestrian)

2026 USEF Guidelines & Rules for Drugs and Medications (with 27 Jul 2026 Guidelines Update) p. 9 · 2026 (last revised 1 Dec 2025; amendments effective 27 Jul 2026, published 10 Aug 2026)
Permitted with conditions
  • Listed as: Potentially Permitted with Medication Report Form (MRF) according to GR411 · Timing: not within 24 h (1 day) of competition · Medication report form: required
  • Listed as: How Long Drugs Remain Detectable · Detection time: 168 h (7 days) for the dose studied · Medication report form: required
“Potentially Permitted with Medication Report Form (MRF) according to GR411: ... albuterol (Salbutamol®)” — source p. 9

FEI

2026 Equine Prohibited Substances List p. 2 · 2026 (effective 1 January 2026)
Controlled medication
  • Listed as: Controlled Medication
“CONTROLLED Albuterol (Salbutamol) Bronchodilator” — source p. 2
FEI List of Detection Times p. 2 · 2024 (16 December 2024)
Controlled medication
  • Listed as: Controlled Medication · Detection time: 96 h (4 days) for 0.5mg (5 actuations) q.i.d, · Routes: inhaled
“SALBUTAMOL3 (also known as albuterol) Ventolin 0.5mg (5 actuations) q.i.d, inhaled 6 96 (4d)” — source p. 2

From 2027-01-01: 2027 Equine Prohibited Substances List p. 2 lists it as Controlled Medication.

Equestrian Canada

Controlled medication
  • Listed as: Prohibited substance
  • Listed as: Emergency use exception (acute respiratory ailment) · Routes: inhaled · Medication report form: required
“Salbutamol /Albuterol” — source p. 11

AQHA

Controlled medication
  • Listed as: Prohibited (VIO401)
“VIO401.6 Albuterol” — source p. 44

HISA / HIWU

Controlled medication
  • Listed as: Controlled Medication Substance · Screening limit: 0.5 ng/mL in urine · Detection time: 72 h (3 days) for 5 x 100 μg actuations per dose for 2 days dosed every 4 hours
“Albuterol1 (Salbutamol) ... 5 x 100 μg actuations per dose for 2 days dosed every 4 hours ... 72 hours ... 0.5 ng/mL in urine” — source p. 3
HISA Prohibited Substances List: Controlled Medications p. 2 · Last updated on December 8th, 2023
Controlled medication
  • Listed as: S7 Controlled Medication Substances · Screening limit: 0.5 ng/mL in urine · Detection time: 72 h (3 days) for 5 x 100 μg actuations per dose for 2 days dosed every 4 hours
“Albuterol (Salbutamol) ... 72 hours: 5 x 100 μg actuations per dose for 2 days dosed every 4 hours. ... 0.5 ng/mL in urine” — source p. 2
HISA Prohibited List (Rule Series 4000), Anti-Doping and Medication Control Program p. 2 · Rule 4000 Series as published in the Federal Register 88 FR 5070 (Jan 26 2023, doc 2023-00957); FTC-approved Mar 27 2023; in force May 22 2023; current posted version on hisaus.org/regulations
Banned / prohibited
  • Listed as: S3 Beta-2 Agonists · Routes: other
“(a) inhaled beta-2 agonists (e.g., albuterol, salbutamol) when prescribed by a Veterinarian” — source p. 2

ARCI

Controlled medication
  • Listed as: Class 3, Penalty B
“Albuterol (Salbutamol) Proventil, Ventolin 3 B” — source p. 11
ARCI Controlled Therapeutic Medication Schedule for Horses p. 1 · Version 4.2.1 (Revised December 2020); policies from Model Rules Version 15 (August 2026)
Permitted up to a threshold
  • Listed as: Controlled Therapeutic Medication · Dose in the rule: 720 micrograms total dose intra-nasal only2. Based upon dosing up to 4 times per day · Screening limit: 1 nanogram per milliliter of urine1 · Routes: other
“Albuterol | 1 nanogram per milliliter of urine1 | 72 hours” — source p. 1

IFHA / EHSLC

Controlled medication
  • Listed as: Legitimate therapeutic substance controlled by International Screening Limit · Detection time: 72 h (3 days) for 5 x 100µg actuations per dose for 2 days at 4 hourly dosing during the day · Routes: inhaled
“Salbutamol Ventolin Evohaler® Allen & Hansburys 5 x 100µg actuations per dose for 2 days at 4 hourly dosing during the day Inhaled via a pMDI through a spacer into nostrils (6) 72 ‡” — source p. 3

State racing commissions

Salbutamol is named in the medication rules, threshold schedules or withdrawal guidance of 21 state racing commissions: Arizona, California, Colorado, Florida, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Minnesota, Nebraska, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Texas, Washington, West Virginia. Most states publish thresholds (concentrations), not times, and several adopt the ARCI schedule by reference. ShowSafe Pro Racing layers each state's rules over HISA or ARCI the way that state applies them, for all 32 states with live pari-mutuel racing.

Detection time is not withdrawal time

A published detection time tells you how long Salbutamol stayed detectable in a handful of horses given one dose by one route. It does not tell you when your horse is clear: a bigger dose, a different route, repeated doses, a joint injection or a slower horse all push the real figure out, and every governing body says to add a safety margin set by your veterinarian. Here is how to read the rulebook.

ShowSafe Pro takes the doses already logged for your horse, matches each one to the published row for that dose and route, adds the margin your vet set, and flags anything the studies never covered as Unknown, ask your vet instead of guessing. Every answer shows the document, page and line it came from, for every rulebook the show runs under.

A detection time is the approximate period a drug or its metabolite stayed detectable in the horses studied, at the dose and route studied. It is not a withdrawal time. No governing body publishes withdrawal times for you; your veterinarian sets the safety margin for your horse. Nothing on this page is a veterinary ruling or a promise that a horse will test clean. Rules change; the document, version and page behind every value are linked so you can check the current text.

Questions about Salbutamol

Is Salbutamol allowed at USEF shows?

The 2026 USEF Guidelines & Rules for Drugs and Medications (with 27 Jul 2026 Guidelines Update) list Salbutamol as "Potentially Permitted with Medication Report Form (MRF) according to GR411". Not within 24 h (1 day) of competition. (Page 9.)

What is the FEI detection time for Salbutamol?

The FEI List of Detection Times gives 96 h (4 days) for 0.5mg (5 actuations) q.i.d, inhaled (Ventolin). On the 2026 FEI Equine Prohibited Substances List Salbutamol is a Controlled Medication. The FEI states that a detection time is not a withdrawal time; the treating veterinarian adds a safety margin.

How long before a race can a horse have Salbutamol under HISA?

HIWU's published detection time for Salbutamol is 72 h (3 days) for 5 x 100 μg actuations per dose for 2 days dosed every 4 hours, screening limit 0.5 ng/mL in urine. A detection time is not a withdrawal time; HISA leaves the safety margin to your veterinarian.

Does a published detection time mean my horse will test clean?

No. It is the approximate time Salbutamol stayed detectable in the horses studied, at that dose and route. Your horse, dose, route and number of doses may differ. Every governing body tells you to add a safety margin set by your veterinarian, and none publishes a withdrawal time. ShowSafe Pro applies the published row for the dose and route you actually gave, adds your vet's margin, and says 'Unknown' when the studies do not cover what you gave.

Other bronchodilator medications

Ventipulmin (clenbuterol), Terbutaline (terbutaline)

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