Find the right cattle dewormer for your herd.

When it comes to controlling parasites, choosing the right cattle dewormer can help you get the most from your herd. That’s why Merck Animal Health offers a variety of options, available in a variety of formulations.

Goes straight to the gut, killing parasites where they live.

Powered by fenbendazole, SAFE-GUARD (fenbendazole) dewormer features broad-spectrum protection against the most concerning parasites. It’s available in a variety of options, including drench and feed formulations, so you can deworm when and how you want – at the chute, with feed or in the pasture.

Put your cattle dewormer to the test.

After deworming, you should see a 90%+ reduction in fecal egg counts. But how do you know? A Fecal Egg Count Reduction Test, or FECRT, is a diagnostic tool with the ability to tell you just that. This video walks through the step-by-step process of how to conduct an accurate FECRT.

IMPORTANT SAFETY INFORMATION FOR SAFE-GUARD CATTLE PRODUCTS: Do not use in beef calves less than 2 months old, dairy calves and veal calves. A withdrawal period has not been established for this product in pre-ruminating calves. Additionally, the following meat withdrawal and milk discard times should be observed:
SAFE-GUARD Paste: Cattle must not be slaughtered for 8 days. For dairy cattle, the milk discard time is 96 hours.
SAFE-GUARD Suspension: Cattle must not be slaughtered for 8 days.
SAFE-GUARD EN-PRO-AL Type C Medicated Block: Cattle must not be slaughtered for 11 days.
SAFE-GUARD 20% Protein Type C Medicated Block: Cattle must not be slaughtered for 16 days.
SAFE-GUARD medicated feed products (pellets, cubes, free-choice mineral, or free-choice liquid): Cattle must not be slaughtered for 13 days.

Browse the complete Merck Animal Health parasite control lineup.

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