For indoor use around children and pets, the answer is generally no — poison creates more risks than it solves inside a home. Poison causes mice to die in hidden locations (inside walls, under floors) creating odor, secondary pest attraction, and decay that is difficult to access. Traps combined with exclusion is the safer, more controllable alternative.

For specific safety concerns around children and pets, see our page on is rat poison safe to use around children or pets.

Why Poison Is Problematic Indoors

• Risks to children and pets: Poison pellets look like food; even small amounts can cause severe harm or death
• Hidden corpses: Poisoned mice die inside walls and floors, causing odor, fly attraction, and decay
• Secondary poisoning: Pets that catch or eat a poisoned mouse can be poisoned themselves
• No control over location of death: Unlike traps, you cannot retrieve a poisoned mouse

Wildlife Risk in New Hampshire

In New Hampshire, the use of second-generation rodenticides outdoors is linked to poisoning of raptors — hawks, owls, and eagles — and foxes through secondary poisoning when these animals eat poisoned mice. NH Fish & Game recommends against using second-generation anticoagulants (brodifacoum, bromadiolone) in areas with wildlife.

Safer and More Effective Alternatives

• Snap traps: Quick, non-toxic, inexpensive — place along walls where activity is seen
• Electronic traps: Instant kill, no chemicals, safer around children and pets
• Catch-and-release traps: Humane option, requires release at least 1 mile from your home
• Exclusion: Sealing all entry points — the only permanent solution regardless of trap type used

When to Call a Professional

If you already used poison and suspect mice died inside walls, professional odor treatment and decontamination may be needed. If other methods haven't worked, persistent activity usually means unsealed entry points — not a need for stronger products.

Call Anchor Pest Services at (603) 785-0118 for eco-friendly, pet-safe mouse control across Manchester, Nashua, and Concord.

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