Many veterinarians advise rotating different deworming “chemical classes” during different times of the year. There are three classes of dewormers available today: macrocyclic lactone, pyrimidine and benzimidazole. All of these contain several drugs within them. Additionally, there is a drug called praziquantel that doesn’t fall into any of the above classes. It was introduced a few years ago to treat tapeworms and is typically combined with a drug from the macrocyclic lactone class.
Your veterinarian can advise you on which chemical classes and which drugs to use, and when to use them. Remember that different product names don’t necessarily mean different chemicals. There are many products that contain the same active ingredients. If your veterinarian recommends rotating between the different classes, it’s important that you follow the program to ensure the best protection against parasites for your horse.
The downloadable chart provides a breakdown of the many equine dewormers on the market today. Each product is broken down by chemical class, drug (active ingredient) and manufacturer. Keep this chart handy when talking to your veterinarian about your horse’s deworming program.
Print out a chart to keep track of your horse’s deworming schedule.
Back to New Thinking on Deworming.
good article
helpful article, printed off the chart to help me remember which one to buy.
I refer to this chart quite often. Great to have it and good article!!
It's often what you can’t see that leads to trouble, and that’s definitely the case…
When you think of the term “companion horse,” one that is versatile with the ability…
Equine ulcers are a significant concern for many horse owners. Ulcers can affect all types…
Making difficult care decisions for a horse that has been closer to us than many…
It's often what you can’t see that leads to trouble, and that’s definitely the case with white line disease. Understanding…
Welcome to Horse Illustrated’s weekly installment of the Right Horse Adoptable Horse of the Week, offered in partnership with the…
Two hours’ drive from Budapest in the picturesque Bükk National Park lies Szilvásvárad, a beautiful little village that is home…
During the height of the pandemic and racial tension around the U.S., two boys struggling with ADHD found healing through…
When you think of the term “companion horse,” one that is versatile with the ability to fill a variety of…
Each year, hurricanes, wildfires, and severe storms force thousands across the country to evacuate their homes. When preparing for a…