Is Marijuana / Thc (cannabis) safe for Cats?
⏳ Pending source check by the Eaoae Safety Review · Drafted 2026-10-06
⚠️ AI-generated answer \u2014 not yet verified. This check was generated by AI and has not been source-checked by the Eaoae Safety Review, so it is not part of Eaoae’s verified database. Use it as a starting point only: confirm with an authoritative source such as ASPCA Animal Poison Control or Pet Poison Helpline, or ask your veterinarian. If your pet may have eaten something dangerous, contact your vet or a poison helpline now \u2014 don’t wait on a website.
No, marijuana is unsafe for cats. THC causes incoordination, dilated pupils, vomiting, lethargy, and potentially tremors or coma. Cats are sensitive to THC despite being less commonly exposed than dogs.
🚨 Emergency: Yes — contact your veterinarian immediately.
💡 Why
Cannabis toxicity in cats produces CNS depression: wobbliness, glassy or dilated pupils, drooling, vomiting, and urinary incontinence. Severe cases progress to tremors, seizures, or coma, especially with concentrated products like oils or edibles. While dogs account for most PPH cannabis cases, cats living in households with cannabis products are absolutely at risk, particularly from secondhand smoke in enclosed spaces or knocked-over edibles.
🩺 What to do
- Store cannabis securely away from cats, especially edibles that smell like food.
- If exposure is suspected, contact your vet promptly and describe the product.
- Keep the cat calm and confined while arranging veterinary care.
❓ Common questions
Are edibles worse than flower?
Yes. Concentrated products deliver far more THC per bite, causing more severe and prolonged signs.
How long does it last?
Signs can last 12-24 hours or longer depending on dose; the cat needs monitoring throughout.
How do I keep my cat safe?
Keep cats out of rooms where cannabis is smoked, and never leave edibles where a cat can reach them.
📚 Sources
- Toxicosis in Dogs and Cats From Tetrahydrocannabinol (THC)
- Pet Poison Helpline: Marijuana Intoxication Rise
- Pet Poison Helpline: My Puppy Ate Weed
- ASPCApro: 17 Plants Poisonous to Pets
🔎 How the sources compare
What each authority says about Marijuana / THC (Cannabis) \u2014 compiled 2026-10-28. Eaoae’s verdict summarizes these sources; it is not our own diagnosis.
| Source | Dogs | Cats | Dose info |
|---|---|---|---|
| ASPCA Animal Poison Control | Marijuana ingestion is often not life-threatening for pets, but common signs include unsteadiness on the feet, depression, dilated eyes, dribbling urine, sensitivity to sound and touch, slow heart rate and low body temperature. With highly concentrated products or large quantities, low blood pressure, agitation, seizures or aspiration are possible, and death has occurred in rare cases. | Marijuana ingestion is often not life-threatening for pets, but common signs include unsteadiness on the feet, depression, dilated eyes, dribbling urine, sensitivity to sound and touch, slow heart rate and low body temperature. With highly concentrated products or large quantities, low blood pressure, agitation, seizures or aspiration are possible, and death has occurred in rare cases. | — |
| Pet Poison Helpline | Ingestion of psychoactive marijuana by companion animals leads to gastrointestinal distress, neurological signs (stumbling gait, dazed or aggressive mental status, sudden flinching), and uncontrolled urination; severe signs including collapse, seizure, and difficulty breathing may also occur. Inhalation of marijuana smoke can also result in poisoning, and there is no safe dose of psychoactive marijuana for companion animals. | Ingestion of psychoactive marijuana by companion animals leads to gastrointestinal distress, neurological signs (stumbling gait, dazed or aggressive mental status, sudden flinching), and uncontrolled urination; severe signs including collapse, seizure, and difficulty breathing may also occur. Inhalation of marijuana smoke can also result in poisoning, and there is no safe dose of psychoactive marijuana for companion animals. | — |
| Merck Veterinary Manual | Marijuana's primary intoxicant is delta-9-THC. Dogs develop mild signs at THC doses of 0.3-0.5 mg/kg and moderate signs above 2-3 mg/kg; the most common signs are lethargy, ataxia and vomiting. Morbidity is high but mortality is extremely low. | Merck's THC page covers dogs and cats together, with high morbidity and extremely low mortality in both species; its pharmacokinetic and dose data pertain to dogs unless otherwise indicated, and no cat-specific toxic dose is given. | Dogs: mild signs at THC 0.3-0.5 mg/kg, moderate signs above 2-3 mg/kg; probable oral lethal dose exceeds 3-9 g of delta-9-THC-dominant plant material per kg |
| VCA Hospitals | VCA lists marijuana among the human food items to avoid feeding pets, alongside alcohol, caffeine, chocolate, grapes, raisins, onions, tobacco products and xylitol, and refers readers to the ASPCA website for more information about toxic foods. | VCA lists marijuana among the human food items to avoid feeding pets, alongside alcohol, caffeine, chocolate, grapes, raisins, onions, tobacco products and xylitol, and refers readers to the ASPCA website for more information about toxic foods. | — |
| Eaoae summary (cats) | ⛔ Unsafe \u2014 Known to be harmful or toxic. Keep it away from your pet. | ||
🔗 Related checks for cats
- chocolate ⛔ Unsafe
- Sago palm (Cycas revoluta) ⛔ Unsafe
- Plain Cooked Chicken ✅ Safe
- Chicken ✅ Safe
- String or Ribbon ⛔ Unsafe
- milk ⚠️ Caution
Checked with Eaoae’s safety lookup. Answers are generated for reference and may be incomplete — always confirm with your vet for your individual pet. Spotted an error? Let us know.
