Levalbuterol Tested as Heaves Treatment

Levalbuterol is an effective bronchodilator but has a relatively short duration of action, researchers found.
Share
Favorite
Close

No account yet? Register

ADVERTISEMENT

Anyone who’s ever managed a horse with a breathing problem knows how heartbreaking it can be to watch the animal struggle to breathe. Equine recurrent airway obstruction (RAO, also known as heaves or equine asthma) is a respiratory disease similar to asthma in humans.

Moldy hay, dust, or other allergens are known triggers of RAO, and the best way to treat the problem long-term is through proper environmental management and with medical intervention when necessary. Veterinarians commonly prescribe the bronchodilator albuterol to affected horses; the aerosol form acts within about 5 minutes to relax the airway’s smooth muscles and open the breathing passage. However, the effects typically only last about 60 minutes.

Levalbuterol is a molecule that is part of the chemical make-up of albuterol and is responsible for its bronchodilatory effects. Physicians use levalbuterol in human medicine. It has a longer duration of action compared to albuterol, but its effects are not well-understood in horses. As such, Laurent Couëtil, DVM, PhD, Dipl. ACVIM, and colleagues at Purdue University sought to determine if levalbuterol had better or longer lasting effects compared to albuterol in horses.

The researchers employed nine horses that each received treatment with albuterol or levalbuterol via nebulizer. The magnitude of bronchodilation was the same between the two treatments. The effects lasted 60 minutes with albuterol and 120 minutes with levalbuterol

Create a free account with TheHorse.com to view this content.

TheHorse.com is home to thousands of free articles about horse health care. In order to access some of our exclusive free content, you must be signed into TheHorse.com.

Start your free account today!

Already have an account?
and continue reading.

Share

Written by:

Nettie Liburt, MS, PhD, PAS, is an equine nutritionist based on Long Island, New York. She is a graduate of Rutgers University, where she studied equine exercise physiology and nutrition. Liburt is a member of the Equine Science Society.

Related Articles

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from TheHorse.com

Sponsored Content

Weekly Poll

sponsored by:

Has your veterinarian used SAA testing for your horse(s)?
101 votes · 101 answers

Readers’ Most Popular

Sign In

Don’t have an account? Register for a FREE account here.

Need to update your account?

You need to be logged in to fill out this form

Create a free account with TheHorse.com!