What Happens If a Dog Eats Weed?
If your dog has eaten weed or another product containing THC, contact your veterinarian or an animal poison control service as soon as possible. Marijuana is toxic to dogs, and the effects can vary depending on what was eaten, the THC concentration, the amount involved, and whether the product contained other harmful ingredients.
Many dogs recover well with appropriate monitoring and supportive veterinary care, but cannabis exposure should not simply be treated as a dog being “high.” Dogs can develop problems with coordination, alertness, heart rate, body temperature, and other body functions. More serious effects are possible, particularly with concentrated THC products or products containing additional toxins.
What to Do If Your Dog Eats Weed
The first priority is finding out what your dog may have consumed and getting professional advice. Do not wait to see how strongly your dog reacts before deciding whether the exposure matters.
ASPCA Animal Poison Control advises contacting a veterinarian or its Poison Control Center as soon as possible after suspected marijuana ingestion. In the United States, ASPCA Animal Poison Control can be reached at (888) 426-4435. A consultation fee may apply.
Remove Your Dog From the Source
Move any remaining cannabis, packaging, food, or other substances out of reach so your dog cannot consume more.
If there are several pets in the home, make sure none of them can access the same material. Keep any packaging rather than immediately throwing it away because the label may help identify the product and its ingredients.
Work Out What Your Dog May Have Eaten
Give your veterinarian as much accurate information as you can. Useful details include:
- what the product was;
- approximately how much may be missing;
- when your dog may have eaten it;
- whether symptoms have already appeared;
- the THC concentration, if it is listed;
- any other ingredients in the product.
An honest account of the exposure helps a veterinarian assess the situation. This becomes especially important with edibles, because the cannabis may not be the only concern. Chocolate, raisins, xylitol, and other ingredients found in some human foods can create additional risks for dogs.
Contact a Veterinarian or Animal Poison Service
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A veterinarian can determine what monitoring or treatment is appropriate based on the suspected exposure and your dog’s condition.
Treatment for THC toxicosis is generally supportive. Merck notes that affected dogs often respond well to supportive care, but treatment decisions depend on their clinical signs and the circumstances of the exposure. More severely affected animals may require measures such as fluid therapy, temperature management, anti-nausea treatment, or other nursing care.
What Happens When a Dog Eats Weed?
THC is the primary intoxicating component of marijuana. Dogs can be particularly sensitive to its neurological effects, and exposure can affect coordination, alertness, heart rate, temperature regulation, and other functions.
After oral THC ingestion, clinical signs commonly begin within roughly one to two hours, although timing can vary. Merck reports that signs generally resolve within one to three days, with the prognosis usually good when appropriate care is provided.
Signs of Cannabis Exposure in Dogs
Possible signs include:
- unusual sleepiness or lethargy;
- difficulty walking or poor coordination;
- vomiting;
- urinary incontinence;
- trembling;
- increased sensitivity to sound or movement;
- dilated pupils;
- changes in heart rate;
- unusually low body temperature;
- agitation or twitching.
More severe effects, including seizures, respiratory depression, very low blood pressure, or coma, can occur but are less common.
Not every dog will show the same combination of symptoms. A dog that appears only mildly affected at first should not be used as evidence that the exposure was harmless.
When Symptoms May Become More Serious
Risk does not depend only on whether something contained cannabis.
Modern cannabis products can differ substantially in THC concentration. Oils, concentrates, some edibles, and other preparations may contain much more THC than plant material, which can make the amount consumed difficult to judge from appearance alone.
Edibles create another problem because several exposures can happen at once. A dog that eats a cannabis brownie, for example, may have been exposed to both THC and chocolate. Other products may contain ingredients such as xylitol or raisins that require separate veterinary assessment.
That is why the original packaging matters. “My dog ate an edible” gives a veterinarian much less information than the product name, ingredient list, THC amount, quantity missing, and approximate time of ingestion.
Can Dogs Eat Weed?
No. Marijuana containing THC should not be given to dogs.
The ASPCA lists Cannabis sativa as toxic to dogs, with delta-9-THC identified as its toxic principle. The FDA also states that it has not approved cannabis for use in animals and advises pet owners to consult a veterinarian if an animal has consumed cannabis or is showing adverse effects after exposure.
This article uses weed to mean marijuana or THC-containing cannabis. It should not be confused with unrelated plants or herbs that happen to include the word “weed” in their common name.
Can a Dog Die From Eating Weed?
Death from THC exposure in dogs appears to be extremely rare, but that does not make cannabis ingestion harmless.
Merck reports a high rate of illness but an extremely low mortality rate from THC exposure in dogs and cats. Severe effects and secondary complications can occur, and published fatal cases have involved marijuana-containing baked goods, although the precise cause of death in those cases was not established.
ASPCA likewise identifies death as a rare possible outcome of marijuana toxicity.
The practical takeaway is not to estimate risk from the word “weed” alone. A small amount of one product and an unknown quantity of a highly concentrated edible are very different exposures. The presence of chocolate, xylitol, raisins, or other harmful ingredients can also change what needs to be treated.
What Not to Do After Your Dog Eats Weed
Do not try to manage a suspected cannabis poisoning based only on how your dog currently looks.
In particular:
- Do not hide the exposure from your veterinarian. Knowing what was eaten helps distinguish cannabis intoxication from other conditions and helps identify additional toxins.
- Do not assume an edible contains only THC. Check its full ingredient list and keep the packaging.
- Do not give your dog more cannabis or a cannabis-derived product in an attempt to counteract the effects.
- Do not try to induce vomiting on your own without veterinary direction.
Veterinary decontamination is not appropriate in every case. Merck notes that inducing vomiting may be considered shortly after ingestion only in dogs that are still clinically normal. Once neurological signs are present, attempting to make a dog vomit can introduce additional risks, which is why the decision belongs with a veterinary professional.
If your dog is already having difficulty standing, is extremely sleepy, is trembling, having seizures, or otherwise appears seriously unwell, seek veterinary care promptly rather than trying home remedies.
How to Prevent Your Dog From Getting Into Weed Again
Cannabis should be stored with the same care you would use for medication.
Keep marijuana, THC oils, concentrates, gummies, baked goods, and other cannabis-containing products somewhere a dog cannot access them. ASPCA specifically recommends keeping marijuana and THC products out of pets’ reach, particularly edible products that may smell like ordinary food to an animal.
Store Cannabis Where Your Dog Cannot Reach It
A countertop may seem inaccessible until a determined dog proves otherwise. Closed cabinets, secure drawers, or another genuinely inaccessible storage location provide a better barrier.
Think about temporary access too. Bags, jackets, purses, guest belongings, or food left on a table can all defeat an otherwise careful storage routine.
Dispose of cannabis products and leftovers where pets cannot retrieve them from a trash bin.
Be Extra Careful With Edibles and Other Cannabis Products
Edibles deserve particular attention because they can look and smell like ordinary food while containing THC and potentially other ingredients that are harmful to dogs.
Keep the original packaging when practical, especially for products with labelled THC content. If an accidental exposure does happen, that information can make the veterinary assessment more precise.
The cannabis theme itself does not need to disappear from your sense of humor. It simply needs to stay separate from the real substance. If that is part of the joke in your household, you can keep it in the toy box with a paw joint dog toy while keeping actual cannabis securely out of your dog’s reach.
The important distinction is simple: a novelty reference is one thing; real marijuana or THC products are substances your dog should not have access to.
A Quick Response Matters More Than Guessing
If you think your dog ate weed, you do not need to diagnose cannabis intoxication yourself. Remove access to the product, gather the packaging and exposure details you have, and contact your veterinarian or an animal poison control service.
Most dogs with THC toxicosis have a good prognosis, and signs generally resolve with time and appropriate supportive care. Getting professional advice early also helps identify situations where the cannabis product contains another toxin or where the dog needs closer monitoring.