🔒 Licensed Only Active: brodifacoum (0.005%)

Brodifacoum — Final Blox, Talon, Havoc

Brodifacoum is the most potent anticoagulant rodenticide. Active ingredient in Final Blox, Talon, and Havoc. Complete guide with safety warnings and proper bait station use.

Rodenticide Anticoagulant mechanism of action diagram

How rodenticide anticoagulant works — illustrated mechanism of action

⚖️ Educational use only. PestControlBasics.com is not a licensed PCO. The label is the law under FIFRA. Always read your complete product label before mixing or applying. Full disclaimer → | ⚗️ Mixing Calculator →

🏷️ Brand Names — Same Active Ingredient

⚠️ Don't buy duplicates. All products below contain brodifacoum (0.005%) as the active ingredient. Buying two different brands is buying the same pesticide twice — they differ only in price, concentration, and formulation type.
Final Blox
Bell Labs · Bait block · 0.005% brodifacoum
Professional
Talon-G SAME ACTIVE INGREDIENT
Syngenta · Pellet bait · 0.005% brodifacoum
Professional
Havoc SAME ACTIVE INGREDIENT
Liphatech · Bait block · 0.005% brodifacoum
Professional
Motomco Tomcat (some formulations) SAME ACTIVE INGREDIENT
Motomco · Bait block · 0.005% brodifacoum
Consumer (some)
Ditrac (diphacinone) — NOT same
Bell Labs · 1st gen rodenticide · 0.005% diphacinone
Professional

🎯 Target Pests

✓Norway Rat✓Roof Rat✓House Mouse✓Resistance-problem rodents

🔬 How It Works

Brodifacoum is the most potent anticoagulant rodenticide available — approximately 100 times more toxic to rats than warfarin. Like all anticoagulants, it inhibits Vitamin K-dependent blood clotting. Death occurs from internal hemorrhage 4–7 days after a single lethal feeding.

Important: Because of its extreme persistence in body tissue and extremely high secondary poisoning risk, brodifacoum should be used only when other rodenticides have failed or resistance is confirmed. Many pest control professionals prefer bromadiolone or diphacinone for routine use, reserving brodifacoum for persistent infestations.

⚗️ Mixing & Application Rates

Ready-to-use bait blocks. Never crush or dissolve. Tamper-resistant bait stations mandatory.

Standard rat control
2–4 blocks per bait station
Place in tamper-resistant stations every 15–30 feet along active runways. Check every 3–5 days. Due to extremely high secondary poisoning risk, remove dead rodents promptly and dispose in sealed bags away from raptors.
Example
0.5 oz
per gallon
⚗️ Mixing Calculator
Enter your sprayer size and target rate — get the exact amount to pour. Backpack, hand sprayer, hose-end, or skid unit.
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⚠️ Safety & Precautions

  • Extreme secondary poisoning hazard — barn owls, hawks, eagles, foxes, coyotes, cats, and dogs are highly susceptible to brodifacoum from eating poisoned rodents
  • Never use loose baiting — tamper-resistant stations are legally required for all outdoor use
  • Remove dead rodents promptly to reduce raptor and scavenger exposure
  • Significantly higher secondary poisoning risk than bromadiolone — consider bromadiolone first
  • Antidote: Vitamin K1 — requires veterinary administration for pets

📄 SDS / Label Resources

Always obtain SDS directly from the manufacturer for the specific lot you purchase. Available on CDMS and manufacturer websites. EPA registration numbers vary by formulation.

📄 CDMS Label Database 🏛️ EPA Label Search

🐛 Pests This Treats — Learn More

Click any pest to view its full identification guide, biology, and treatment options.

🐛 Ants → 🐛 House Mouse → 🐛 Norway Rat → 🐛 Rats → 🐛 Roof Rat → 🐛 Scales → 🐛 Ticks →

🌿 Environmental & Ecological Impact

🐝 Bees / PollinatorsNONE
🐟 Fish / Aquatic LifeLOW
🐦 BirdsVERY HIGH
🐕 Mammals / PetsVERY HIGH
🦐 Aquatic InvertebratesLOW
💡 Extreme secondary poisoning risk — raptors, pets, and non-target mammals. Most toxic anticoagulant rodenticide.

⏱️ Residual & Re-entry Timeline

🔹
Apply
Follow label mixing and application rates
🔸
Re-entry: Keep in tamper-resistant stations
Keep people and pets out of treated area
🟢
Effective period: Single feeding lethal
Active residual — killing or repelling target pests
🔄
Reapply
Re-treat when pest activity returns or residual expires

🔄 Alternatives & Related Products

Same chemical class or different approaches to the same pests.

🔄
Bromadiolone
Same class: Anticoagulant Rodenticide
 🔄
Bromethalin
Same class: Neurotoxic Rodenticide
 ↔️
Pyrethrin
Different approach: Botanical Pyrethrin
 ↔️
Boric Acid
Different approach: Inorganic

❓ Frequently Asked Questions

Q: Is brodifacoum safe for pets?
Brodifacoum has significant mammalian toxicity. Keep all pets away from treated areas. Contact your vet or ASPCA Poison Control (888-426-4435) if ingested.
Q: Can I use brodifacoum indoors?
Check the specific product label — formulations vary. Baits and dusts often have indoor labeling; concentrates and granulars are typically outdoor.
Q: How long does brodifacoum last after application?
Residual varies by formulation, surface type, weather, and UV exposure. Indoor applications last longer than outdoor. Check the product label for re-application intervals.
Q: What should I do if exposed?
Remove contaminated clothing, wash skin with soap and water. For eye contact, rinse 15–20 minutes. For ingestion or severe symptoms, call Poison Control (1-800-222-1222). Have the product label available.

📋 Safety Data Sheet (SDS)

📋

Brodifacoum — Safety Data Sheet

View the official SDS document for this product directly on the CDMS label database.

📄 View SDS on CDMS → 🏛 Search EPA Label Database →
Brodifacoum Safety Data Sheet page 1
📄 Brodifacoum — Safety Data Sheet · View the complete SDS document above or download below
📄 CDMS Label & SDS Database 📄 EPA Label Search
⚖️ Educational use only. PestControlBasics.com is not a licensed PCO. The label is the law under FIFRA. Always read your complete product label before mixing or applying. Full disclaimer → | ⚗️ Mixing Calculator →
📚 Sources: EPA Pesticide Labels · NPIC Pesticide Info
Published: Jan 1, 2025 · Updated: Apr 7, 2026
🔮
Reviewed by Derek GiordanoContent reviewed by a licensed pest management professional and cross-referenced against EPA, university extension, and manufacturer technical data. Last reviewed: April 2026.