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Dog Ate Weed or an Edible? THC Toxicity Signs & Care | North Springs

Dog Ate Weed or an Edible? THC Toxicity Signs & Care | North Springs

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If your dog ate marijuana or a THC edible, watch for wobbliness, dribbling urine, dilated pupils, sensitivity to sound or touch, and a slow heart rate. Most dogs recover with supportive care, but large doses, concentrates, and edibles containing chocolate or xylitol can be serious. Call your vet or an animal poison control line and seek emergency care, and be honest about what was eaten.

Since Colorado legalized marijuana, emergency veterinarians across the state have seen a steady rise in dogs with THC toxicity. It is now one of the most common intoxications we treat. Owners are sometimes hesitant to tell us what happened, so let me say this clearly: we are here to help your pet, not to judge. An accurate history lets us treat faster and more safely.

Why Is THC So Toxic to Dogs?

Dogs have more cannabinoid receptors in their brains than humans do, which makes them far more sensitive to THC. Modern products are also much more potent than in the past. Edibles, concentrates, oils, and vape cartridges can deliver a large dose in a small, tasty package, and dogs rarely stop at one gummy or cookie.

What Are the Signs of THC Toxicity in Dogs?

Signs usually begin 30 minutes to 3 hours after ingestion and can last from several hours to more than a day, especially with edibles. Common signs include:

  • Wobbly, drunken walking (ataxia) and difficulty standing
  • Dribbling urine, a sign that is very characteristic of THC
  • Exaggerated startle response to sound, touch, or movement
  • Dilated pupils and a glassy-eyed appearance
  • Lethargy or sleepiness, alternating with agitation in some dogs
  • Slow heart rate and low body temperature
  • Vomiting, with a risk of inhaling vomit if the dog is very sedated
  • In severe cases, tremors, seizures, or coma

Why Are Edibles More Dangerous Than Plant Material?

The THC dose in edibles is often high, but the other ingredients can be just as concerning. Brownies and chocolates add chocolate toxicity on top of THC. Some gummies and baked goods contain xylitol, which can cause a sudden, dangerous drop in blood sugar and liver injury in dogs. High-fat butters and oils can trigger pancreatitis. Please bring the packaging with you if you have it, since the ingredient list directly shapes our treatment plan.

What Should I Do If My Dog Ate Weed?

  • Keep your dog in a quiet, safe space away from stairs and water
  • Do not try to make your dog vomit at home; sedated dogs can inhale vomit
  • Gather the packaging or estimate the amount and type of product
  • Call ASPCA Animal Poison Control at (888) 426-4435 (a consultation fee may apply) or head straight to an emergency vet
  • Seek care immediately if your dog is very sedated, cannot stand, is having tremors, or ate a chocolate or xylitol product

How Is Marijuana Toxicity Treated?

There is no antidote for THC, so treatment is supportive. Depending on timing and the dog’s mental state, we may induce vomiting under veterinary supervision or give activated charcoal. Many dogs need IV fluids, anti-nausea medication, temperature support, and monitoring of heart rate and blood pressure. Dogs that are heavily sedated are hospitalized in our ICU with round-the-clock monitoring until they can walk and swallow normally.

In some severe cases, veterinarians use intravenous lipid emulsion therapy to help bind fat-soluble THC. Our team will also run bloodwork and test blood sugar if xylitol exposure is possible, and treat for chocolate toxicity when needed. If you’d like to understand more about how we approach common poisoning emergencies, our overview of toxins and ingestion cases we treat covers many of the scenarios we see regularly.

Is THC Toxicity Fatal in Dogs?
Photo by Rick Proctor on Unsplash

Is THC Toxicity Fatal in Dogs?

Deaths are uncommon, and most dogs recover completely within 24 to 72 hours with appropriate care. However, deaths have been reported, particularly after ingestion of highly concentrated medical-grade butter or products combined with other toxins. It is always safer to have your dog evaluated than to wait it out.

Key Takeaways

  • Dogs are far more sensitive to THC than people are.
  • Wobbliness, dribbling urine, and startling easily are hallmark signs.
  • Chocolate, xylitol, and high-fat edibles add extra dangers.
  • Don’t induce vomiting at home; bring the packaging to the ER.
  • North Springs treats THC toxicity 24/7 with a judgment-free approach.

Frequently Asked Questions

How long will my dog be high after eating an edible?

Effects often last 12 to 24 hours and can persist up to 72 hours with large doses or edibles, because THC is stored in fat and released slowly.

Can a dog get sick from secondhand marijuana smoke?

Dogs in enclosed spaces with heavy smoke can absorb enough THC to show mild signs. Most intoxications, however, come from eating products or discarded joints.

Will the vet report me if my dog ate weed?

Veterinarians focus on treating your pet. Telling the team exactly what your dog ate, including THC, helps them choose the safest treatment.

Is CBD toxic to dogs?

Pure CBD products are generally less toxic, but many products contain some THC or xylitol. If your dog ate a large amount of any cannabis product, call your vet or poison control. You may also find our article on what to do if your dog ate chocolate helpful, since chocolate is a frequent ingredient in THC edibles.

Fast, Judgment-Free Toxicity Care in Colorado Springs

If your dog ate marijuana, an edible, or any cannabis product, North Springs Veterinary Emergency & Specialty Center is open 24/7/365 at 10520 White Diamond Pt, Colorado Springs, CO 80908. Walk-ins are welcome. Call (719) 920-4430 while you’re on the way, and bring the product packaging if you can. You can also learn more about what to expect when you arrive for a pet emergency at our facility in Colorado Springs.

Sources

1\. Meola SD, Tearney CC, Haas SA, Hackett TB, Mazzaferro EM. “Evaluation of trends in marijuana toxicosis in dogs living in a state with legalized medical marijuana: 125 dogs (2005–2010).” Journal of Veterinary Emergency and Critical Care. 2012;22(6):690–696.

2\. Brutlag A, Hommerding H. “Toxicology of Marijuana, Synthetic Cannabinoids, and Cannabidiol in Dogs and Cats.” Veterinary Clinics of North America: Small Animal Practice. 2018;48(6):1087–1102.

3\. Janczyk P, Donaldson CW, Gwaltney S. “Two hundred and thirteen cases of marijuana toxicoses in dogs.” Veterinary and Human Toxicology. 2004;46(1):19–21.

4\. ASPCA Animal Poison Control Center. “Marijuana.” aspca.org, People Foods and Toxic Substances.

5\. Merck Veterinary Manual. “Marijuana Toxicosis in Animals.” merckvetmanual.com.