TL;DR: Marijuana ingestion in dogs is typically a medium-level emergency requiring veterinary guidance to monitor for symptoms like lethargy and incoordination, especially if the edible contains other toxins like xylitol or chocolate.
What is marijuana toxicity in dogs and why are edibles dangerous?
Marijuana toxicity in pets occurs when a dog ingests THC (tetrahydrocannabinol), the psychoactive compound found in cannabis. Edibles present a double risk: they often contain high concentrations of THC and may also contain other ingredients toxic to dogs, such as chocolate, raisins, or the artificial sweetener xylitol.
Is marijuana ingestion an emergency for my dog and what symptoms should I look for?
- The urgency level for marijuana ingestion is typically Medium; while rarely fatal on its own, it can cause significant distress and physiological changes.
- Common symptoms include "drunken" movement, extreme lethargy, dribbling urine, and sensitivity to light or sound.
- Contact a veterinarian immediately for guidance, as they may need to monitor your dog's heart rate and temperature.
Why should I take a photo of the product packaging for my veterinarian?
- Take a clear photo of the packaging to show the ingredients and the THC content (usually measured in milligrams).
- This information helps the veterinary team calculate the exact dose your dog received.
- A photo helps identify if other life-threatening toxins, like chocolate or xylitol, are present in the edible.
Clinical Context (Merck Veterinary Manual)
If a dog has ingested a marijuana edible, treatment consists of supportive care. For recent exposures without contraindications, induce emesis and administer activated charcoal. Monitor comatose animals for aspiration pneumonia, provide intravenous fluids, treat hypothermia, and rotate frequently to prevent dependent edema or decubital ulceration. Diazepam can be administered for sedation or to control seizures. Treatment and monitoring should continue until all clinical signs have resolved, which may take up to 72 hours in dogs. Common clinical signs of marijuana toxicosis include depression, ataxia, bradycardia, hypothermia, vocalization, hypersalivation, vomiting, diarrhea, urinary incontinence, seizures, and coma.
Chapter: Toxicology, Emergency
Source: The Merck Veterinary Manual, 11th Edition (Page 3041)