Cannabis Toxicity in Pets: What Every Owner Needs to Know in 2025 🧪🐶🐱

By Dr Duncan Houston BVSc, Ask A Vet Blog
Published: July 7, 2025

As marijuana becomes more accessible across the U.S., unintentional exposure in pets—especially dogs—is rising fast. While CBD is generally safe, THC is toxic to pets. Understanding the risks and knowing what to do can save your furry friend’s life. 🧪🐾

🌿 THC vs. CBD: What's the Difference?

• THC (tetrahydrocannabinol): Psychoactive, causes intoxication, found in marijuana
• CBD (cannabidiol): Non-psychoactive, found in hemp, used medicinally

🚫 Most toxicity comes from pets ingesting THC products, especially edibles containing chocolate or xylitol (both toxic themselves).

⚠️ Common Sources of Pet Cannabis Exposure

• 🍪 Edibles (brownies, gummies, cookies)
• 🌿 Raw marijuana or dried buds
• 💨 Smoke inhalation (rare, but possible)
• 🧴 Oils, butters, or concentrates
• 🧪 Products laced with synthetic cannabinoids

📉 How Much Is Toxic?

Toxicity varies, but as little as 3–9 g/kg of plant material can cause signs. That’s 1.3–4.1 grams per pound of body weight. One edible or joint could be dangerous for a small dog. 🧪

🐕 Signs of THC Toxicity in Dogs (Most Common First)

• 🐾 Unsteady walking or standing (88%)
• 🎧 Hypersensitivity to sound or touch (75%)
• 🛌 Lethargy or depression (63%)
• 💧 Urinary incontinence (46%)
• 🤮 Vomiting (26%)

Less Common But Concerning

• ⚡ Seizures
• 🌀 Tremors, twitching, or pupil changes
• 😵 Dazed, disoriented, or minimally responsive
• 🔥 High doses can cause coma or aggression

🧠 Why Dogs Are So Sensitive

Dogs have a high concentration of cannabinoid receptors in the brain’s balance centers, making them more vulnerable to THC than people. ⚠️

🩺 Treatment: What Your Vet Will Do

• 🧪 No antidote—care focuses on supportive treatment
• 💧 IV fluids, nausea control, antiseizure meds (if needed)
• 💨 Confine, keep warm, and monitor until effects wear off
• 🕐 Recovery may take 24–72 hours

🤢 When Vomiting May Be Induced

• 🕒 Only if within 30 minutes and dog is alert
• 🚫 Never induce vomiting at home without vet guidance

📦 Bring the Product With You

Your vet won’t report cannabis exposure—but having the product helps them provide accurate treatment. 📑

🔬 Why At-Home Drug Tests Don’t Work for Pets

THC is metabolized differently in animals. Human urine tests often fail to detect pet exposure. Don’t rely on them. 🧪

📛 Are CBD Products Safe?

Generally, yes. But some products are mislabeled and may contain THC or synthetic cannabinoids. Always choose pet-specific CBD from trusted brands. ✅

📞 Emergency Contacts

• 📱 ASPCA Animal Poison Control: 888-426-4435
• 📱 HomeAgain Hotline: 888-466-3242 (free with premium registration)

📱 Ask A Vet Can Help

Not sure if your pet ate marijuana? Symptoms can mimic other illnesses. Get help fast.

📲 Download the Ask A Vet app to talk to licensed vets 24/7 for real-time triage, treatment advice, and recovery care. 🩺

✅ Cannabis Toxicity Summary

• ✔ THC = toxic to pets; CBD = usually safe, but verify sources
• ✔ Symptoms vary—watch for wobbling, sleepiness, or incontinence
• ✔ Vet care is needed if ingestion occurred
• ✔ Supportive care = the best treatment
• ✔ Always keep edibles & cannabis out of pet reach

Prevention is key—but fast treatment saves lives. 🐾🧪

Visit AskAVet.com or download the Ask A Vet app for immediate help if your dog or cat has ingested marijuana. 📱🐶