Commercial Rat & Mouse Poison in Canada: For Pest Control, Farm & Business Use

Rodenticide Canada · Commercial class

Commercial-class rat and mouse poison is registered for the specific commercial activities listed on its label. Health Canada allows only certified pest control operators, farmers and people authorized in government-approved programs to use it. Homeowners should look at domestic options instead.

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Current prices are on each product page. Who may use it · Buying questions

Commercial vs domestic rodenticides

How Health Canada separates the two classes
Domestic class Commercial class
Intended for Consumers, in and around the home The commercial activities listed on the label
Who may use it Consumers, following the label Certified pest control operators, farmers and people authorized in government-approved programs
Bait stations Sold packaged with a bait station and always used in one Tamper-resistant station requirements depend on the location and who can access it
Second-generation anticoagulants (brodifacoum, bromadiolone, difethialone) Prohibited Permitted where the label allows; difethialone is limited to indoor use

Sources: Health Canada rodenticide Q&A and Commercial class rodenticides: tamper-resistant bait station requirements (2024). Health Canada also prohibits commercial concentrates that are mixed into bait from being used outdoors or in residential settings.

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First- or second-generation bait?

Anticoagulant rodenticides fall into two groups. First-generation products (chlorophacinone, diphacinone, warfarin) generally need rodents to feed over several days. Second-generation products (brodifacoum, bromadiolone, difethialone) are more acutely toxic and stay longer in the tissues of animals that eat them, which raises the risk to predators and scavengers. That is why Health Canada keeps them out of domestic products. Choose the product your label and site allow, not the most potent one — our brodifacoum vs difenacoum guide compares two common options.

Buying for a farm or a multi-site program

For barns, grain storage and warehouses, compare pail sizes on a price-per-kilogram basis and budget for enough stations to cover the label’s spacing. Larger packs suit an established plan, not a reason to place more bait than the label permits. See bulk rodent bait & value packs and rodent control for farms & barns.

Questions before you order

Can a homeowner use commercial rat poison?

Health Canada limits use of commercial-class rodenticides to certified pest control operators, farmers and people authorized in government-approved programs. Homeowners should use domestic-class products, which come packaged with a bait station, or traps.

What is the strongest commercial rat poison?

Second-generation anticoagulants are the most acutely toxic group, but strength is not the right way to choose. Pick a product whose label covers your pest, site and station setup, and that your province allows.

Do commercial products need a tamper-resistant station?

Usually. Health Canada sets the station requirement by location — indoors or outdoors — and by whether children, pets or livestock can reach it. The product label has the final word.

Where is the difference between commercial and domestic explained in more detail?

See Domestic & Commercial Rodenticides: Check the Label.

Reviewed November 8, 2026 by Rodenticide Canada. Check the individual listing and the current Canadian label for contents, pricing, availability and directions.