What Happens When a Dog Eats Weed?
When a dog consumes marijuana or marijuana products, the THC from the cannabis plant interacts with the cannabinoid receptors in the dog’s brain. Since dogs have more cannabinoid receptors than humans, they are much more sensitive to THC, making them highly vulnerable to cannabis toxicity. This can happen not just when a dog eats weed directly, but also when they consume edibles or inhale secondhand smoke. The heightened sensitivity can lead to serious symptoms, so it’s crucial to monitor your pet closely if you suspect they've been exposed to marijuana.
How Long Does THC Stay in a Dog’s System?
The length of time THC stays in a dog’s system depends on several factors including the dog’s size, age, health condition, and how much weed was consumed. On average the effects of marijuana toxicosis can last from 3 to 24 hours. But in some cases, traces of THC can stay in the system for several days, especially in dogs with bigger fat reserves where THC accumulates. In severe cases, the effects can last 72 hours or more.
Factors That Affect THC Elimination
These factors affect how long THC stays in a dog’s system:
Dog’s size and weight: Bigger dogs metabolize THC faster than smaller dogs.
Amount of weed consumed: The more THC consumed, the longer it will take to wear off.
Type of product: Edibles especially those with chocolate can take longer to clear from a dog’s system.
Fat reserves: THC is stored in fat cells so dogs with more body fat will retain THC longer.
Metabolism: A dog’s metabolism affects how fast their body can process and eliminate THC.
Signs of Marijuana Toxicity in Dogs
Dogs that eat weed will show various symptoms. Here are the common clinical signs:
Lethargy
Dilated pupils
Urinary incontinence
Tremors
Drooling
Slow heart rate
Low body temperature
Vomiting or excessive vomiting
Wobbliness or incoordination
Respiratory depression
These dog's symptoms can show up 30 minutes to an hour after ingestion and can last for several hours.
Dog-Ingested Marijuana: What to Do Next
If you think your dog ate marijuana, act fast to minimize toxicity. Here’s what to do:
1. Induce Vomiting (If Directed by a Vet)
In some cases inducing vomiting can help remove the weed from your dog’s system before it’s fully absorbed. But only do this if instructed by a vet. If ingestion was recent, inducing vomiting can reduce toxin absorption.
2. Go to the Vet NowMarijuana toxicity in dogs is serious so call your vet now. Be prepared to give them details about what your dog ate including how much THC, what type of weed, and the symptoms.
3. Activated CharcoalYour vet may give your dog activated charcoal to reduce toxin absorption in the gastrointestinal tract. This works by binding the THC and preventing it from getting into the bloodstream.
4. Supportive CareSupportive care including IV fluids may be needed to keep your dog hydrated, support blood pressure, and manage other symptoms. In severe cases, hospitalization may be needed to monitor your dog’s condition closely.
How Marijuana Toxicity Affects a Dog’s Body
THC can disrupt a dog’s brain chemistry causing neurological symptoms like tremors, lethargy, and dilated pupils. Eating weed can also drop a dog’s body temperature causing hypothermia. This low body temperature can be life-threatening if not treated immediately. Also, marijuana toxicity can cause gastrointestinal issues like vomiting and diarrhea. Dogs can experience urinary incontinence, drooling, or seizures in severe cases.
Edible Toxins
Keep in mind if a dog eats edibles especially those with chocolate there is an added risk. Chocolate toxicity can enhance the effects of THC and require additional treatment. Brownie ingestion for example requires treatment for marijuana and chocolate and other toxic ingredients.
How Vets Diagnose Marijuana Intoxication
If you bring your dog to the vet after they eat weed, the first step will be a physical exam. The vet will check their vital signs including heart rate, respiratory function, and body temperature. They may run tests to rule out other conditions as the symptoms of marijuana intoxication can mimic other toxins or substances.
What if a Dog Inhales Secondhand Smoke?
Secondhand smoke can also be a problem though it’s less likely to cause severe toxicity than direct ingestion of weed. If your dog inhales secondhand smoke keep them in a well-ventilated area away from further smoke. Watch for warning signs like lethargy, excessive drooling, or dilated pupils, and call a vet if symptoms worsen.
Is THC Toxicity in Dogs Life Threatening?
THC toxicity in dogs is not usually fatal but can cause severe symptoms that require medical attention. Life-threatening cases are more likely to occur if a dog eats a large amount of weed or edibles with other toxic substances like chocolate or synthetic cannabinoids. In most cases, with prompt veterinary care, they will recover within 24-72 hours.
Can Dogs Recover from THC Poisoning?
Yes, most dogs can recover from THC poisoning with treatment. Supportive care including fluids and medication to manage symptoms is often enough. However, the severity of the poisoning depends on how much THC the dog ate and their overall health. Larger dogs and those that ate small amounts of weed will recover faster than smaller dogs or those that ate more.
How to Prevent Marijuana Ingestion in Dogs
To prevent ingestion store marijuana products out of reach of pets. Pet parents should be extra careful with edibles as dogs are attracted to the smell and taste of baked goods. Keep marijuana plants, products, and accessories in sealed containers to avoid accidental ingestion.
FAQs
1. How do I know if my dog ate weed?
Common signs are lethargy, dilated pupils, urinary incontinence, tremors, and low body temperature. If you see these symptoms call your vet.
2. Can secondhand smoke harm my dog?
Yes, secondhand smoke can cause mild symptoms like lethargy or drooling. Keep your dog away from any smoke.
3. What if a dog eats an edible with chocolate?
In this case, your dog is at risk for both THC toxicity and chocolate toxicity. Call the vet now.
4. How do I prevent my dog from eating weed?
Store marijuana products in sealed containers and out of reach of your dog. Be extra careful with edibles.
5. Is THC toxicity in dogs fatal?
THC toxicity is not fatal with treatment. However severe cases can occur if the dog eats a large amount of edibles with other harmful ingredients.
Conclusion: Be Proactive About Your Dog’s Health
If your dog accidentally consumes marijuana, acting quickly can make a huge difference in their recovery. While THC toxicity in dogs is rarely fatal, it can still lead to serious and uncomfortable symptoms that may require veterinary care. Understanding how long THC stays in a dog’s system, along with knowing the signs of marijuana ingestion and the appropriate steps to take, is crucial for protecting your pet’s well-being. Always err on the side of caution by contacting your veterinarian immediately if you're unsure, and take preventive measures to keep marijuana products out of your dog's reach to avoid future incidents.
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