Is marijuana toxic to dogs?
🚩 When to see a vet
- Your dog ate or was exposed to marijuana in any form
- Stumbling, a dazed look, flinching or leaking urine
- Collapse, seizures or trouble breathing
In an emergency, call your vet or nearest emergency animal clinic.
🚨 Poison emergency: call now
- Trouble breathing
- Collapse
- Seizures
- Bloated belly or retching with nothing coming up
- Suspected poisoning (chocolate, xylitol, lilies for cats, grapes)
- Heavy bleeding
- Male cat straining to pee
- Pale gums
ASPCA Animal Poison Control: (888) 426-4435 (a fee may apply)
Pet Poison Helpline: (855) 764-7661 (a fee applies)
Pet Poison Helpline: (855) 764-7661 (a fee applies)
Yes. Pet Poison Helpline says there is no safe dose of psychoactive marijuana for pets. Eating it or breathing the smoke can cause stomach upset, stumbling, a dazed or aggressive state, sudden flinching and leaking urine. Severe cases can lead to collapse, seizures or trouble breathing. Call your vet or a pet poison hotline right away.
What the sources say
Eating psychoactive marijuana can cause stomach and gut upset in pets. [1]
Nervous system signs include a stumbling walk, a dazed or aggressive mental state and sudden flinching. Pets may also leak urine. [1]
Severe signs can include collapse, seizures and difficulty breathing. [1]
Breathing in marijuana smoke can also poison a pet. [1]
There is no safe dose of psychoactive marijuana for companion animals. [1]
FAQ
Is secondhand smoke a risk?
Yes. Pet Poison Helpline says inhaling psychoactive marijuana smoke can poison a pet.
Is a small amount OK?
No. Pet Poison Helpline says there is no safe dose of psychoactive marijuana for pets.
Sources
- Pet Poison Helpline: Marijuana, checked Oct 13, 2026
We summarize these sources in our own words. Dosing or home treatment amounts are never given here. Ask your vet.
