A herd carrying a heavy parasite load rarely looks sick right away — it just gains weight slower, milks lighter, and costs more to feed. Safe-Guard Dewormer Suspension, a 10% fenbendazole formula from Merck Animal Health, is labeled for beef cattle, dairy cattle, and goats and has been a Valley Vet Supply staple since the company started serving producers in 1985. It's available over the counter, no prescription required, and dosed as a straightforward oral drench.
Parasites This Suspension Targets
In cattle, Safe-Guard controls stomach worms like Haemonchus placei and Ostertagia ostertagi, intestinal worms including Cooperia and Nematodirus species, and lungworm (Dictyocaulus viviparus) — while the goat label instead covers parasites such as Haemonchus contortus and Trichostrongylus colubriformis. Goats get coverage against Haemonchus contortus and Trichostrongylus colubriformis instead. The label dose for cattle runs 2.3 ml per 100 lbs body weight as a single oral drench, and it can be given straight or mixed into feed or water. Weigh animals before treating rather than eyeballing it; underdosing is how resistance builds in a herd over time. Fenbendazole's safety profile is well established across cattle classes, and Safe-Guard is one of the few dewormers labeled for use in lactating dairy cattle, not just dry stock.
Cattle vs. Goat Dosing
- Cattle: 2.3 ml per 100 lbs body weight, single oral drench
- Goats: dosing and repeat-treatment intervals differ — check the label before treating
- Safe for breeding bulls, pregnant cows, and lactating dairy cattle per label directions
- Cattle and goat parasite targets are not identical, so treat each species on its own schedule
More Ways to Deworm the Herd
For producers who prefer a paste over a drench, Safe-Guard Dewormer Paste for Beef and Dairy Cattle delivers the same fenbendazole for individual treatment, and Safe-Guard 0.5% Feed Grade Dewormer works well for top-dressing feed across a larger group. Goat-only operations should also look at Goat Care 2X Goat Dewormer.
For the full lineup, shop Cattle Dewormers or Wormers for Goat & Sheep.
FAQs
What's the dose for cattle? 2.3 ml per 100 lbs body weight, given as a single oral drench. Weigh animals first so the dose is accurate rather than estimated.
Can I use Safe-Guard Suspension in dairy cattle? Yes — it's one of the few dewormers labeled for dairy cattle, including animals currently in lactation, which sets it apart from many alternatives.
How does the suspension differ from Safe-Guard Paste or Pellets? All three use fenbendazole as the active ingredient but suit different jobs: suspension is built for drenching, paste for treating one animal at a time, and pellets for top-dressing feed across a group.
