Parasite control is an ongoing battle. SAFE-GUARD (fenbendazole) is ready.

When it comes to deworming cattle, choose SAFE-GUARD to help get the most from your herd. SAFE-GUARD features broad-spectrum protection against the most concerning internal parasites, including OstertagiaCooperia and more.

Deworm in the fall for a strong spring.

Fall deworming can have a profound impact on herd health and performance, especially for cow-calf operations. Cattle free from parasites over the winter will have better feed intake, improved average daily gain and milk production, as well as a positive immune response to vaccines and diseases.1,2

It’s especially important that pregnant cows are dewormed in the fall. This helps ensure more nutrients go toward fetal development and keeping the cow in good body condition, which impacts her ability to raise a healthy calf.1


Deworm when cattle are moved off pasture at the end of the grazing season or after the first killing frost in areas where cattle remain on pasture year-round.

Deworming cattle to stay ahead of profit-eating parasites.

The signs of a severe parasite infection are easy to spot. But it’s important to keep an eye out for the less severe signs that can indicate the start of a problem, so you can take swift action.


Pile of cattle feed

Reduced feed intake


Increased incidence of disease


Decreased reproductive performance

Milk production

Lower milk production

SAFE-GUARD is a fast-acting dewormer that goes straight to the gut, killing worms where they live.

Keep cattle protected in the pasture.

Parasites shed by cattle last season are often the source of infection for cattle this season. Cleaning up your pasture starts with deworming cattle to remove worms and stop egg shedding back onto the grass.

Internal parasite lifecyle - 90% of parasites are in the pasture


  1. Cattle ingest infective larvae (L3)
  2. Immature worms move to the gut where they mature; adult worms lay eggs
  3. Eggs pass through feces back onto the grass where they become larvae and continue to mature (L1, L2)
  4. Infective larvae (L3) are mobile and move away from manure pats to grass to be consumed
SAFE-GUARD blocks and pellets

Deworming cattle without reworking cattle.

SAFE-GUARD is the only dewormer available in feed formulations that can be added directly to feeders or administered in the pasture for convenient deworming between spring and fall treatments. It builds up bite-by-bite, so even cattle that ingest small amounts over a few feedings still quickly build to a dose that is lethal to internal parasites.

A veterinarian’s take.

Parasites can significantly weigh down your herd. Louisiana veterinarian Dr. Paul Whittington explains how they impact animal health and performance.

The SAFE-GUARD Guarantee.

One way you can check that your parasite management program is working is through a fecal egg count reduction test (FECRT). A FECRT will not only tell you which parasites you’re dealing with, but also if they’re responding to your program. With Safe-Guard, you can expect to see a 90% reduction in fecal egg count after just 14 days.1

Deworming Cattle: Schedule and Time Matter

When it comes to deworming cattle, schedule based on your operation type and location, as well as the parasite life cycle. Doing so reduces the parasite burden both in your herd and on the pasture.

Select your operation type to see the recommended guidelines.

Cow/calf operation


Stocker operation


Dairy operation


Nail the timing of your treatments with
SAFE-GUARD’s simple scheduling tool.

Determine how much of your preferred
formulation you’ll need to effectively treat your
herd with the SAFE-GUARD dosage calculator.

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