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.

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.


Reduced feed intake

Increased incidence of disease

Decreased reproductive performance

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.


  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

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.

Fighting resistance by doubling down.

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

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.




Unsure when to deworm your herd?

Questioning how much you will need? Use the treatment schedule and dosage calculator to create your customized cattle deworming plan.


SAFE-GUARD Paste and Suspension: cattle must not be slaughtered within 8 days following last treatment; Mineral and medicated feed products: 13 days; EN-PRO-AL Molasses Block: 11 days; Protein Block: 16 days; For dairy cattle, the milk discard time is zero hours. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal. For complete information, refer to the product label.