The label is the law. Rates and restrictions below are taken from the product labels listed under Sources. Your product's own label governs; read it before you mix or apply. Mixing calculator · Disclaimer
- Active ingredient
- Chlorophacinone
- Chemical class
- Anticoagulant. The note to physicians and veterinarians says swallowed bait may reduce the clotting ability of blood and cause bleeding.[1]
- Mode of action
- Anticoagulant: lowers the blood's ability to clot, countered with vitamin K1; rodenticides have no IRAC insecticide group[1]
- Signal word
- Rozol Pellets: Caution[1]
Restricted Use status: pellets versus tracking powder
The Rozol Pellets label carries no Restricted Use statement, though it bars selling the bait in containers under 4 pounds. Optional label wording adds meadow voles, pack rats and other wild rodents, except in California.[1]
Rozol Tracking Powder, a 0.2% chlorophacinone dust for indoor use and burrows leading into buildings, is different. It is a Restricted Use Pesticide due to high acute toxicity, sold only to certified applicators or people under their direct supervision, with the signal word WARNING.[2]
Where it is used
Every outdoor above-ground placement must be in a bait station. Use tamper-resistant stations wherever children, pets, non-target mammals or birds might get to the pellets.[1]
Never broadcast the pellets, and don't put them near or inside ventilation duct openings or on food or feed crops.[1]
Good spots are along walls, by gnawed holes, in corners and concealed places, between floors and walls, and beside burrows. Take away as much other food as possible.[1]
Swap out spoiled or contaminated bait right away. Wearing waterproof gloves, pick up dead rodents and leftover bait, and repeat treatment if rodents return.[1]
Products and registrations
| Product | Registrant | EPA Reg. No. | Active % | Formulation | Signal word |
|---|---|---|---|---|---|
| Rozol Pellets[1] | Liphatech, Inc. | 7173-151 | 0.005% | paraffinized pellet bait | Caution |
Label rates
| Product | Use | Pests | Rate |
|---|---|---|---|
| Rozol Pellets | In and within 100 feet of homes, farm and commercial buildings; active rat burrows | Norway rats and roof rats | 4–16 oz bait per placement[1] Usually 15 to 30 feet apart. Keep a constant supply of fresh bait for 10 days or until rat signs stop. In confirmed burrows, place bait at least 6 inches inside. |
| Rozol Pellets | In and within 100 feet of homes and other buildings | House mice | 0.25–2 oz bait per placement[1] A quarter to half ounce per spot, usually 8 to 12 feet apart; up to 2 ounces where mouse activity is very high. Keep it stocked for 15 days or until mice are gone. |
Safety and environmental hazards
People
Signal word CAUTION: harmful if swallowed, absorbed through the skin or inhaled, so avoid breathing the dust. Handlers wear long pants, shoes, socks and waterproof gloves. Vitamin K1 is the treatment the label gives doctors.[1]
Pets
Call a veterinarian at once if an animal eats bait. The label warns that dogs, cats and other predators or scavengers might be poisoned by feeding on animals that ate it.[1]
Bees and pollinators
No bee hazard appears on the label; its warnings concern mammals and birds.[1]
Fish and water
The label calls it extremely toxic to mammals and birds. Don't apply it to water, to areas with surface water, or below the mean high water mark, and don't contaminate water with equipment rinsate.[1]
Common questions
- Is chlorophacinone a restricted use pesticide?
- It depends on the product. The Rozol Pellets label has no Restricted Use statement, while the Rozol Tracking Powder label says Restricted Use Pesticide, for certified applicators only.[1][2]
- How long do I leave Rozol Pellets out?
- Keep fresh bait available for 10 days for rats and 15 days for house mice, or until signs of activity stop.[1]
- Can Rozol Pellets go in rat burrows?
- Yes, for confirmed Norway or roof rat infestations, placed at least 6 inches into active burrows, even beyond 100 feet from buildings.[1]
Sources
- U.S. EPA Pesticide Product Label System, “Rozol Pellets label, EPA Reg. No. 7173-151 (EPA-stamped, Dec. 14, 2020).” www3.epa.gov/pesticides/chem_search/ppls/007173-00151-20201214.pdf (accessed 2026-10-06)
- U.S. EPA Pesticide Product Label System, “Rozol Tracking Powder label, EPA Reg. No. 7173-113 (EPA-stamped, Dec. 13, 2016).” www3.epa.gov/pesticides/chem_search/ppls/007173-00113-20161213.pdf (accessed 2026-10-06)