Pet Health

Is Marijuana Toxic to Cats?

Curious about marijuana's effects on cats? Discover the truth about its toxicity, symptoms of exposure, and tips for keeping your furry friend safe!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A curious cat sniffing a marijuana plant indoors, highlighting pet safety and cannabis toxicity concerns for felines.

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As a cat owner, you want to ensure your feline friend stays safe and healthy. But what happens if your cat accidentally ingests marijuana? Whether it's due to secondhand smoke, nibbling on an edible, or ingesting dried cannabis, understanding the risks and what to do next can help protect your pet.

⚠️ What to Watch For

Marijuana contains compounds called cannabinoids, including THC (tetrahydrocannabinol), which is toxic to cats. Even a small amount can cause serious health issues. Cats are particularly sensitive to THC because their smaller size makes them more vulnerable to its effects.

If your cat has been exposed to marijuana, you might notice these symptoms:

  • Lethargy or extreme drowsiness
  • Uncoordinated movements or stumbling
  • Dilated pupils
  • Drooling
  • Vomiting
  • Low body temperature
  • Increased sensitivity to noise, touch, or light
  • Seizures or tremors (in severe cases)

These symptoms can appear within minutes to a couple of hours after exposure. If you observe any of these signs, it’s important to act quickly.

🔍 Possible Causes

Cats can come into contact with marijuana in several ways, even unintentionally. Here are the most common scenarios:

  • Ingesting dried cannabis leaves or flowers left within reach
  • Eating marijuana edibles such as brownies, cookies, or gummies
  • Inhaling secondhand smoke from marijuana use
  • Accidentally consuming cannabis oil or tinctures

Edibles pose an additional risk because they often contain other toxic ingredients for cats, like chocolate, raisins, or xylitol.

✅ What You Can Do at Home

If you suspect your cat has been exposed to marijuana, stay calm and take the following steps:

  • Remove any remaining marijuana, edibles, or paraphernalia from your cat’s reach.
  • Monitor your cat closely for symptoms of toxicity.
  • Do not attempt to induce vomiting unless instructed by a veterinarian. Some substances can cause further harm if vomited.
  • Keep your cat in a quiet, safe space away from loud noises or bright lights.

While mild cases may resolve on their own, it’s always best to consult a veterinarian to ensure your cat’s safety, especially if symptoms are severe or worsening.

💡 When to Call a Vet

Marijuana toxicity can range from mild to life-threatening, depending on the amount ingested and your cat’s individual sensitivity. Contact your veterinarian immediately if your cat:

  • Shows severe symptoms such as seizures, tremors, or difficulty breathing
  • Has consumed a large amount of marijuana or an edible
  • Is not improving after a few hours

In some cases, your vet may recommend bringing your cat in for treatment. This could include supportive care like IV fluids, anti-nausea medication, or activated charcoal to help reduce toxin absorption.

Remember, early intervention can make a significant difference in your cat’s recovery.

FAQs

Q: Is secondhand marijuana smoke dangerous for cats?
A: Yes, inhaling secondhand marijuana smoke can expose your cat to THC, which may cause symptoms of toxicity. Always avoid smoking around your pets.

Q: What should I do if my cat ate a marijuana edible?
A: Remove any remaining edibles, monitor your cat for symptoms, and contact your veterinarian immediately. Edibles can be especially dangerous due to additional toxic ingredients.

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References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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