Is THC / Marijuana toxic to dogs?

High severity No safe amount — No amount is considered safe.

Yes. Exposure can cause serious illness and needs prompt veterinary attention.

Symptoms to watch for

dazed expression
glassy eyes
incoordination
slow response times
dribbling urine
vomiting
drooling
changes in heart rate
vocalization
neurological stimulation
hyperactivity
coma

How vets treat it

Call your veterinarian or Pet Poison Helpline immediately for life-saving treatment advice.

Why it's dangerous

Marijuana affects receptors in the brain which alter normal neurotransmitter function, leading to neurological and physiological impairment.

Toxic compound: δ-9-tetrahydrocannabinol (THC)

Good to know

Applies to THC-containing cannabis ingredients and edibles. Hemp seed and products documented as THC-free are not equivalent.

Sources

Pet Poison Helpline

This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.

More substances toxic to dogs

Alcohol Extreme severity Apricot Pits, Seeds, Leaves, and Stems Extreme severity Caffeine Extreme severity Cherry Pits, Seeds, Leaves, and Stems Extreme severity Everything toxic to dogs →

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