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Toxic: keep away from dogs

DogSafe severity score
5/10

No, and the usual accident is not the one people expect. DEET, the active ingredient in most human insect repellent, is neurotoxic to dogs, and the common exposure is an owner spraying it onto their dog to keep mosquitoes off rather than a dog reaching a bottle. Drooling, vomiting, and wobbliness are the early signs.

Call a vet or poison control now. Do not wait for symptoms.

ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661. A consultation fee may apply.

Educational reference. Not individualized veterinary advice.(more)

See this page's cited references for supporting information and our Sources page for the reference organizations we use. Citations do not imply that those organizations reviewed or endorsed DogSafe.

Check Insect Repellent for your dog

Read the general guidance and keep your dog's exposure details ready for a veterinary call. This checker cannot decide whether an exposure is safe.

Why Insect Repellent is dangerous

Most human repellent is built on DEET, and dogs tolerate it poorly. Merck's household toxicant material describes the pattern as gastrointestinal and neurological: drooling and vomiting first, then unsteadiness, tremors, and at higher exposures seizures. Both routes count, because DEET is absorbed through skin as well as swallowed, which is what makes the well-meaning application the more common accident. Two other formulations sit on the same shelf and behave differently: picaridin products are generally considered less problematic though far less studied in dogs, and permethrin-treated clothing sprays are an insecticide exposure in their own right. The concentration on the label matters enormously, since consumer repellents range from single figures to nearly pure DEET.

Part of the Home and Garage Product Exposures guide

For related dog-safety questions and product-by-product answers, see the complete home and garage product exposures guide.

Signs to watch for

Drooling, vomiting, loss of appetite, skin redness where applied; progressing to wobbliness, disorientation, tremors, twitching, and in severe exposures seizures

Related items

Check the exact item or ingredient before assuming two similar exposures carry the same risk.

What to do next

Read the DEET percentage off the label, since a 7% product and a 98% product are different exposures. If it was applied to your dog, do not wait: call and ask whether to bathe the coat now. Note the weight and the time. Keep the container or photograph the ingredient panel before you call, because with household products the brand name tells a poison-control line almost nothing and the ingredient list tells it almost everything.

๐ŸšจStep-by-step: what to do in the first 10 minutes โ†’
Animal poison control

The usual accident is a kind one

Most exposures on this page are not a dog raiding a cupboard. They are an owner on a camping trip protecting their dog from mosquitoes with the bottle they were already holding.

1. Never apply human repellent to a dog

DEET is absorbed through skin, so spraying a dog delivers a dose without any swallowing involved, and a dog will then lick the coat and add to it. This is the single most useful sentence on the page: whatever the mosquito problem, human repellent is not the answer, and a vet can recommend a product formulated and dosed for dogs instead. Insecticides and pesticides around dogs โ†’

2. Read the percentage, not the brand

Consumer repellents run from mild to nearly undiluted DEET, and the number on the label changes the conversation more than the brand does. High-concentration products intended for tropical travel are the ones most likely to produce tremors. Picaridin formulations are generally regarded as lower risk, though the canine evidence base is thin, and permethrin sprays for clothing are a separate insecticide question. Every home and garage product, compared โ†’

3. Neurological signs mean stop watching and start driving

The early picture, drooling and an upset stomach, can look like any minor exposure. What distinguishes DEET is what can follow: unsteadiness, muscle twitching, and seizures. Those are not a wait-and-see set of signs. If any of them appear, or if repellent went onto the coat at all, treat it as an urgent call rather than an evening of monitoring. What to do in the first 10 minutes โ†’

FAQ

How much Insect Repellent is dangerous?

No safe canine dose is published for DEET, and the concentration range on sale is wide enough that the percentage on the label is the first thing to read. A dog that licked a treated arm has had a small exposure; a dog sprayed directly, or one that chewed a bottle, has had a large one. Body weight scales all of it, and repeated applications add up rather than resetting.

Can I treat this at home?

If a dog has licked a treated human arm or leg, wash the area so it cannot go back for more and watch for a few hours. That is the only version of this exposure that is comfortably a home situation.

When should I call the vet?

Call now if repellent was applied to your dog, if a bottle was chewed or emptied, if the product is high-concentration DEET, or if the dog is small. Call immediately for tremors, twitching, unsteadiness, disorientation, or a seizure. If the product went onto the coat, ask about washing it off before it is absorbed further rather than waiting to see what happens.

I sprayed insect repellent on my dog. What should I do now?

Call your vet or a poison-control line straight away and ask whether to bathe your dog immediately, because DEET is absorbed through skin and washing it off early limits the dose. Have the product's DEET percentage and your dog's weight ready. Do not wait for signs before calling.

Can dogs be around people wearing bug spray?

Yes, with the sensible precaution of letting it dry and not letting your dog lick treated skin. The problem is direct application and ingestion, not sharing a tent with someone who used it.

Is there a dog-safe mosquito repellent?

There are products formulated for dogs, and your vet can point you at one appropriate for your dog's size and any medications they are on. Human DEET products are not a substitute, and neither are undiluted essential oils, several of which cause their own problems in dogs.

SourcesUpdated August 5, 2026
  • Merck Veterinary Manual โ€” household hazards and toxicants in small animals
  • ASPCA Animal Poison Control Center โ€” common household toxins
  • Pet Poison Helpline โ€” household-product toxicities
Read DogSafe's sources and review policy โ†’
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are general editorial hazard ratings, not a calculation of your dog's exposure. They cannot establish that an amount is safe. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.