Is catnip safe for dogs to eat?

Yes, in small amounts. Catnip is not classified as toxic to dogs by the ASPCA (it is listed as toxic to cats only). Eating a large quantity of the plant can cause mild, self-limiting stomach upset such as vomiting or diarrhea, but it is not poisonous to dogs.

Does catnip affect dogs the same way it affects cats?

No. The active compound nepetalactone triggers a euphoric, stimulated response in cats that have the receptor sensitivity for it. Dogs lack that sensitivity, so catnip does not get dogs 'high' - in dogs it more often has a mild calming or sedative effect, or no noticeable effect at all.

My dog ate a lot of catnip - should I worry?

Catnip is not toxic to dogs, so a large nibble is generally not dangerous. The main risk from eating a lot of any plant material is temporary GI upset (vomiting, diarrhea). Make sure the catnip is plain with no added sweeteners (especially xylitol), garlic, or onion. If vomiting or diarrhea is persistent, contact your vet or Pet Poison Helpline (855-764-7661).

Is Catnip Poisonous to Dogs?

Nepeta cataria · Lamiaceae

Generally SafeAlso toxic to cats

Catnip is generally safe for dogs.

What to keep in mind

Catnip (Nepeta cataria) is not classified as toxic to dogs. The ASPCA Toxic and Non-Toxic Plants database lists catnip as toxic to cats only (active principle: nepetalactone) and does not list dogs as an affected species, meaning ASPCA does not treat it as toxic to dogs. Dogs lack the receptor sensitivity to nepetalactone that produces the euphoric response seen in cats; in dogs catnip tends to have a mild calming/sedative effect rather than stimulation. Practical caveats: (1) Like any plant material, eating a large quantity can cause self-limiting gastrointestinal upset (vomiting, diarrhea) simply from the volume of fiber/plant matter and essential oils, not from poisoning. (2) Offer only plain, untreated catnip - avoid any product containing added xylitol/sweeteners, garlic/onion flavoring, or other additives, which carry their own toxicity risks. (3) Keep portions small and occasional; catnip is a treat/enrichment item, not a food. (4) Whole dried sprigs or dense wads could pose a minor choking or GI-obstruction risk in small dogs or gulpers - supervise. (5) Concentrated catnip essential oil is far more potent than the herb and should not be given to dogs. If a dog eats a large amount and shows persistent vomiting/diarrhea, contact a vet or Pet Poison Helpline.

Frequently asked questions

Is catnip safe for dogs to eat?: Yes, in small amounts. Catnip is not classified as toxic to dogs by the ASPCA (it is listed as toxic to cats only). Eating a large quantity of the plant can cause mild, self-limiting stomach upset such as vomiting or diarrhea, but it is not poisonous to dogs.
Does catnip affect dogs the same way it affects cats?: No. The active compound nepetalactone triggers a euphoric, stimulated response in cats that have the receptor sensitivity for it. Dogs lack that sensitivity, so catnip does not get dogs 'high' - in dogs it more often has a mild calming or sedative effect, or no noticeable effect at all.
My dog ate a lot of catnip - should I worry?: Catnip is not toxic to dogs, so a large nibble is generally not dangerous. The main risk from eating a lot of any plant material is temporary GI upset (vomiting, diarrhea). Make sure the catnip is plain with no added sweeteners (especially xylitol), garlic, or onion. If vomiting or diarrhea is persistent, contact your vet or Pet Poison Helpline (855-764-7661).

Sources

Last updated 2026-06-25

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This page is for general educational purposes and is not a substitute for professional veterinary advice. Toxicity can vary with the amount eaten, your dog's size, and individual sensitivity. If you suspect poisoning, contact a veterinarian or poison-control hotline immediately.