Deworming & Internal Parasites


Residency Endowment Aims to Keep Equine Vets at Michigan State

August 14, 2009

Robert and Kay Ritchie have a vision: a steady stream of veterinary students in residency positions studying equine medicine at Michigan State University's College of Veterinary Medicine (MSU CVM). When their residency training is through, these... Read More


Equine Dewormers: Use Care When Choosing Products

August 13, 2009

When confronted by shelves and shelves of dewormers, many horse owners can be confused about their choices--and the issue of equine parasite resistance adds even greater confusion.... Read More


Research in Horses Shows Parasite that Causes Babesiosis Can Be Eliminated

August 07, 2009

Many countries in the world outside of the United States are home to the parasite Babesia caballi, which can cause illness or death in horses. Some infected horses might recover and become inapparent carriers of the parasite.

According... Read More


EPM: Is DMSO the Cure for Treatment Issues?

August 03, 2009

New research on treating horses with equine protozoal myeloencephalitis (EPM) has found dissolving toltrazuril sulfone, commercially known as ponazuril, in dimethylsulfoxide (DMSO) instead of water prior to oral administration in horses increase... Read More


International Parasite Survey: Still Time to Weigh In

July 23, 2009

Horse owners around the world are being asked to participate in an online questionnaire to help researchers better assess the issues of parasite control and anthelmintic (dewormer) resistance. The study is part of a collaborative effort between... Read More


Equine Tapeworms Prevalent in Western States, Study Shows

July 21, 2009

New data shows tapeworm prevalence on West Coast farms as 17.3% in California, 36.5% in Oregon and 25.3% in Washington. A 2003 study in equine parasitology by Craig Reinemeyer, DVM, PhD, of East Tennessee Clinical Research, uncovered the high... Read More


Parasite Resistance Live Q&A on

July 14, 2009

Have questions about parasite resistance and how to manage it on your farm?

On Tuesday, July 14, at 8 p.m. EDT, will host a live question and answer session with Martin... Read More


Detecting Tapeworms, Reducing Resistance through 'Diagnostic Deworming'

July 12, 2009

Diagnostic deworming of horses with anti-tapeworm drugs could play an important role in reducing resistance to antiparasitic drugs, report veterinarians from Japan and North America.

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Parasite Resistance in Horses: Share Your Thoughts

July 07, 2009

Horse owners still have an opportunity to let their opinions on parasite control and resistance be known. Researchers have organized an international survey to better assess the issues of parasite control and dewormer resistance. Read More


Study: Tablet Form of Dewormer as Effective as Gel

June 22, 2009

A new tablet dewormer was deemed as safe and effective against large strongyle infections in horses as the gel formulation of the same drug, according to a controlled study recently published in Parasitology Research.

"Large... Read More

Article en Español: Aparición de Huevecillos de Pequeños Estróngilos

June 02, 2009

This is one of a series of articles translated as part of our partnership with A Caballo, an equine publication based in Mexico, and Jorge Murga, DVM. Keep an eye... Read More


Will the Worms Win? Part 2: Resistance

May 01, 2009

Managing internal parasites in the face of dewormer resistance.

Anthelmintic resistance is a growing problem the world over. While we might not see "super worms" ravaging our equine companions, there is a pressing need to... Read More


Deworming Your Horse

April 16, 2009

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Will the Worms Win? (Part 1)

April 01, 2009

Common intestinal parasites and why they are problematic .

Intestinal parasites, or "worms," have been problematic since the domestication of horses. In this first section of a two-part series, we’ll review the... Read More


Competent Horse Care

April 01, 2009

Timely deworming, immunizations, and farrier work are only part of the equation. Ongoing observation is required to ensure your horse is properly fed and cared for.... Read More


Zimectrin Products Offer New Satisfaction Guarantee

March 19, 2009

Horse owners can hold their parasite control to a higher standard--their own approval. Now, all Zimecterin (ivermectin) Brand Products are backed by a satisfaction guarantee, helping to ensure the highest standard of parasite control.

"Hors... Read More


Acquired Scoliosis in Equids, AAEP 2008

March 17, 2009

Scoliosis, a curvature of the spine, is most often attributed to congenital vertebral malformations, possibly associated with malposition of the fetus in the uterus. However, researchers have linked cases of acquired scoliosis presented at Cornell... Read More