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Posted: 09/08/2022
Herd of red Angus cattle standing behind a fence together

Are You Ready for Fall Deworming?

Prevention management is key when it comes to internal parasites in cattle. While there are ways to limit exposure to various worms, lice, mites, flies and grubs, fall deworming gives the animals a healthy head start into the winter. More importantly, it avoids reduced performance in cattle. Get the full lowdown on deworming – including strategies, products and other insights – right here from PBS Animal Health.

Strategies for Deworming Cattle

Make the most of your time with cattle in the chute this fall. Many producers plan to deworm when they check for pregnancy. But also check those calves – with less mature immune systems, calves less than a year old are more susceptible to worm loads compared to older cattle. If left untreated, the calves don’t perform as well (even if you can’t tell by simply looking at them).
Pasture management is another important part of the deworming equation. Avoid overcrowding to keep animals away from manure where larvae congregate. Larvae also tend to stay close to the ground, so overgrazing your herd is another way they might pick up more of the larvae.

Types of Cattle Dewormers

Farmer deworming cattle

Handlers can drench/apply dewormer to each individual animal in a few different ways:

  • Injection (syringe in neck or shoulders)
  • Oral (feed-incorporated pellets, paste, etc.)
  • Pour On (direct application to the skin/back-spraying)

Not sure which product is right for your operation? Check out the PBS Animal Health Cattle Dewormer Comparison Chart. Our chart categorizes the various application methods and helps you quickly compare active ingredients, targeted parasites, kinds of cattle, dosage and any withdrawal. When you’re ready to order, simply click on the name to go directly to the product page.

Customers' Favorite Deworming Products

Avoid chemically-resistant worm populations by employing a mix of products with varying active ingredients. Consider these customer favorites in your deworming rotation this fall. As always, consult your veterinarian as needed.

Cydectin pour-On


Cydectin is the industry's #1 selling pour-on deworming brand. Its active ingredient, moxidectin, controls 33 parasite species and stages while remaining dung beetle and earthworm friendly. Moxidectin has a different chemical structure that delivers greater potency and persistence on parasites. It’s all because it’s stored in the cow’s fat tissue for longer than active ingredients found in other products. We stock Cydectin in 500 ml up to 10 liters and it’s received nothing but 5-star reviews on our website.

Eprinex Pour-On


Looking for a product that kills more species and stages of parasites than any other brand? Turn to Eprinex Cattle Pour-On Dewormer. There’s no meat or slaughter withdrawal, and no milk discard or milk withholding period. Eprinex delivers a weatherproof formula that works on long, wet hair coats so you can treat cattle in any weather condition. Get it in sizes from 250 ml up to 10 liters.

Dectomax Pour-On


Prefer deworming with injections? Try Dectomax, a cattle and swine dewormer that’s available in 100 ml up to 500 ml bottles. Dectomax may be suitable for use on Organic Farms (check with your certifier). According to a Zoetis study, preweaned calves treated with Dectomax Injectable before they went to summer pasture gained 28 pounds more than untreated calves (p = .05) by the time they were weaned. It’s also available in a pour-on formula.

Eprizero Pour-On


For broad-spectrum parasite treatment, turn to Eprizero Pour-On for Beef and Dairy Cattle. Much like Eprinex, this pour-on is weatherproof with zero withdrawal and milk discard. Protect your herd with Eprizero in 2.5- to 20-liter bottles.

Stock Up on Dewormers from PBS Animal Health

We know internal parasites can lead to production problems, but they don’t have to. Find a deworming regimen that works for you right here at PBS Animal Health. We’ve got a variety of cattle dewormers available in many applications and active ingredients. Have questions? Give our Customer Care team a call at +1 (800) 321-0235 and they’ll be happy to help.

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