Diagnosis Prior to Treatment Critical to EPM Recovery

Many diseases cause signs similar to EPM, but won’t respond to EPM treatment. Ensure you treat for the right condition.

No account yet? Register


Equine protozoal myeloencephalitis (EPM) is one of the most feared diseases among many horse owners. So feared, that owners might be tempted to request their veterinarian treat their horse for EPM without proper diagnostic measures. While early treatment is critical to stopping the disease from causing further nerve damage, ensuring the horse does, in fact, have EPM is equally as critical. If the horse does not have that condition, an EPM treatment product will not be effective in treating the animal’s ailment.

Amy Johnson, DVM, Dipl. ACVIM, assistant professor of large animal medicine and neurology at the University of Pennsylvania School of Veterinary Medicine’s New Bolton Center, says treating for EPM without a diagnosis can cost owners both time and money.

“Many diseases can cause signs similar to EPM, but will not respond to EPM treatment,” she explains. “If the horse is treated for EPM, but actually has another disease, the owners have not only wasted their money, but also time that could have been better used pursuing the true cause of the horse’s problem.”

Steve Reed, DVM, Dipl. ACVIM, internal medicine veterinarian at Rood and Riddle Equine Hospital in Lexington, Kentucky, agrees

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.


Written by:

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:

Which skin issue do you battle most frequently with your horse?
239 votes · 239 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!