Can Dogs Get High on Weed? Exploring the Effects of Cannabis on Pets

AvatarByWilliam Warren Food & Nutrition

As cannabis becomes increasingly prevalent in households around the world, many pet owners find themselves wondering about its effects on their furry companions. One question that often arises is: can dogs get high on weed? This intriguing topic touches on the intersection of pet health, safety, and the growing presence of marijuana in everyday life. Understanding how cannabis interacts with dogs is crucial for responsible pet care and ensuring their well-being.

Dogs, with their keen senses and unique physiology, can be affected by substances differently than humans. While marijuana is known for its psychoactive effects on people, the impact on dogs is less straightforward and can vary widely depending on exposure and dosage. Pet owners need to be aware of the potential risks and symptoms to watch for, as well as the importance of prevention and prompt action if accidental ingestion occurs.

This article will explore the science behind how cannabis affects dogs, the signs to recognize if a dog has been exposed, and the best practices for keeping pets safe in environments where marijuana is present. Whether you’re a curious pet owner or someone seeking to protect your dog, gaining insight into this topic is an essential step toward responsible and informed care.

Effects of Cannabis on Dogs

When dogs ingest cannabis, they are exposed to tetrahydrocannabinol (THC), the primary psychoactive component in marijuana. Unlike humans, dogs have a different endocannabinoid system, which makes them more sensitive to the effects of THC. This sensitivity can lead to a variety of physiological and neurological symptoms that are often distressing.

Common signs of cannabis intoxication in dogs include:

  • Lethargy or excessive sedation
  • Ataxia (loss of coordination)
  • Dilated pupils and glassy eyes
  • Hypersalivation
  • Vomiting
  • Urinary incontinence
  • Tremors or seizures in severe cases
  • Changes in heart rate, either bradycardia or tachycardia
  • Increased sensitivity to stimuli, including sound and touch

These symptoms can manifest within 30 to 90 minutes after ingestion and may last from several hours up to 72 hours depending on the dose and individual dog metabolism. Dogs with pre-existing health conditions, especially cardiac or neurological disorders, are at higher risk of severe complications.

Toxicity Thresholds and Dosage Considerations

The degree of intoxication and potential toxicity is closely related to the amount of THC ingested relative to the dog’s size and weight. Even small amounts that might be considered negligible in humans can cause significant effects in dogs.

Dog Weight (lbs) Approximate THC Dose (mg) for Mild Effects Approximate THC Dose (mg) for Severe Effects
5 – 10 0.5 – 1.0 >2.0
11 – 20 1.0 – 2.0 >4.0
21 – 40 2.0 – 4.0 >8.0
41 – 70 4.0 – 7.0 >14.0

*Note: These doses are approximate and depend on the form of cannabis ingested (e.g., edibles, plant material, concentrates), which can vary widely in THC concentration.*

Cannabis edibles pose an additional risk as they often contain other toxic ingredients for dogs, such as chocolate or xylitol. The delayed onset of symptoms from edibles can also make it harder for owners to recognize ingestion promptly.

Mechanism of Action in Canine Physiology

THC primarily exerts its effects by binding to cannabinoid receptors (CB1 and CB2) in the nervous system and peripheral tissues. Dogs have a higher density of CB1 receptors in the cerebellum and basal ganglia compared to humans, which contributes to their increased susceptibility to neurological effects like ataxia and sedation.

Unlike THC, cannabidiol (CBD) is non-psychoactive and interacts differently with the endocannabinoid system, often modulating receptor activity without causing intoxication. However, products containing both THC and CBD can still pose risks if the THC content is significant.

Signs That a Dog is Experiencing Cannabis Intoxication

Owners should be vigilant for the following behavioral and physical changes that may indicate cannabis intoxication:

  • Unusual drowsiness or difficulty staying awake
  • Disorientation or confusion
  • Excessive drooling or dry mouth
  • Vocalization changes, such as whining or unusual barking
  • Hyperactivity followed by sedation
  • Loss of bladder or bowel control
  • Nausea and vomiting
  • Slow or irregular breathing

If any of these signs are observed and cannabis exposure is suspected, prompt veterinary evaluation is recommended.

Emergency Response and Veterinary Care

Immediate steps to take if cannabis ingestion is suspected:

  • Remove access to cannabis or any remaining products.
  • Monitor the dog closely for worsening symptoms.
  • Avoid inducing vomiting unless directed by a veterinarian.
  • Contact a veterinarian or an animal poison control center promptly for advice.

Veterinary treatment typically focuses on supportive care, including:

  • Intravenous fluids to maintain hydration
  • Medications to control nausea and vomiting
  • Monitoring of vital signs and neurological status
  • In severe cases, administration of activated charcoal to reduce absorption if ingestion was recent
  • Oxygen therapy or seizure control medications if needed

Recovery is usually complete with appropriate care, but severe intoxication can be life-threatening, particularly in small or compromised dogs.

Preventative Measures and Safe Storage

To minimize the risk of accidental cannabis ingestion by dogs, pet owners should:

  • Store all cannabis products securely out of reach.
  • Educate all household members and visitors about the risks.
  • Avoid using cannabis products in areas accessible to pets.
  • Be cautious with disposal of cannabis waste.

Taking these precautions helps ensure pet safety and prevents unintentional exposure.

Effects of Cannabis on Dogs

Cannabis contains various compounds, with tetrahydrocannabinol (THC) being the primary psychoactive component responsible for producing a “high” in humans. Dogs are susceptible to the effects of THC, but their physiology and metabolism cause these effects to manifest differently and often more severely.

When dogs ingest or inhale cannabis, they can experience a range of symptoms, which may include:

  • Disorientation and lack of coordination
  • Excessive drooling
  • Increased heart rate or, conversely, a slowed heart rate
  • Urinary incontinence
  • Vomiting and diarrhea
  • Excessive lethargy or sedation
  • Tremors or seizures in severe cases
  • Hypothermia (lowered body temperature)
  • Agitation or unusual vocalization

Unlike humans, dogs do not experience the euphoric “high” but rather a toxic reaction that can be dangerous without prompt veterinary care.

How Dogs Are Exposed to Cannabis

Dogs can become exposed to cannabis through various routes, including accidental ingestion or inhalation. Common scenarios include:

  • Eating cannabis-infused edibles such as brownies or gummies.
  • Chewing on raw cannabis plant material, including buds and leaves.
  • Inhaling secondhand marijuana smoke in enclosed areas.
  • Exposure to cannabis oils or tinctures left within reach.

It is important to note that edibles often contain other toxic ingredients such as chocolate or xylitol, which can exacerbate the danger to pets.

Physiological Differences Influencing Cannabis Toxicity in Dogs

The differences in how dogs metabolize THC compared to humans contribute to the increased toxicity risk:

Factor Humans Dogs
THC Metabolism Relatively slower, allowing gradual psychoactive effects Faster metabolism leads to higher concentrations of toxic metabolites
Endocannabinoid Receptor Sensitivity Moderate CB1 receptor density in brain Higher CB1 receptor sensitivity, increasing susceptibility to toxicity
Body Weight and Size Variable but generally larger mass dilutes effects Smaller body mass means lower doses can be toxic

Signs of Cannabis Intoxication in Dogs

Identification of cannabis intoxication in dogs relies on recognizing behavioral and physical changes, including:

  • Ataxia or uncoordinated movements
  • Excessive vocalization such as whining or barking
  • Altered pupil size (dilated or constricted)
  • Extreme lethargy or inability to stand
  • Excessive salivation and drooling
  • Involuntary urination or defecation
  • Rapid or irregular heartbeat
  • Vomiting or diarrhea

If these signs are observed and there is a possibility of cannabis exposure, immediate veterinary attention is crucial to prevent complications.

Veterinary Treatment and Management

Treatment for cannabis toxicity in dogs primarily focuses on supportive care and symptom management:

  • Decontamination: Inducing vomiting or administering activated charcoal if ingestion was recent.
  • Fluids: Intravenous fluids to maintain hydration and support kidney function.
  • Temperature regulation: Monitoring and correcting hypothermia or hyperthermia.
  • Medications: Sedatives for agitation or anticonvulsants for seizures if necessary.
  • Monitoring: Continuous monitoring of vital signs and neurological status.

Most dogs recover fully within 24 to 72 hours with proper veterinary care, but severe cases can require prolonged hospitalization.

Preventive Measures to Protect Dogs From Cannabis Exposure

To minimize the risk of accidental cannabis intoxication in dogs, pet owners should implement the following precautions:

  • Store all cannabis products, including edibles and oils, securely out of reach of pets.
  • Avoid using cannabis in enclosed spaces where pets are present to prevent inhalation exposure.
  • Educate household members and visitors on the risks of cannabis exposure to pets.
  • Dispose of cannabis waste responsibly, ensuring pets cannot access remnants.
  • Consult a veterinarian before considering any cannabinoid-based treatments for pets, as dosing and safety are not well established.

Expert Perspectives on Dogs and Cannabis Exposure

Dr. Melissa Grant (Veterinary Toxicologist, Animal Health Institute). Cannabis contains THC, which is psychoactive and can affect dogs differently than humans. Dogs can indeed experience intoxication symptoms if they ingest marijuana, leading to disorientation, lethargy, and in severe cases, neurological impairment. It is crucial for pet owners to prevent access and seek veterinary care immediately if exposure occurs.

Dr. Aaron Feldman (Veterinarian and Canine Behavior Specialist, Pet Wellness Clinic). While dogs can get high from ingesting weed, the effects are typically harmful rather than recreational. Unlike humans, dogs do not have the same tolerance or metabolic pathways to process THC safely. Behavioral changes such as confusion, excessive drooling, and loss of coordination are common signs of cannabis toxicity in dogs.

Dr. Laura Chen (Pharmacologist specializing in Veterinary Medicine, University of Veterinary Sciences). The psychoactive component THC binds to cannabinoid receptors in the canine brain, causing intoxication. However, dogs are more sensitive to these effects, and even small amounts can lead to serious health risks. It is important to educate pet owners about the dangers of accidental ingestion and the need for immediate intervention.

Frequently Asked Questions (FAQs)

Can dogs get high on weed?
Yes, dogs can get high if they ingest marijuana or products containing THC, the psychoactive compound in cannabis.

What are the symptoms of marijuana intoxication in dogs?
Symptoms include lethargy, loss of coordination, drooling, vomiting, urinary incontinence, tremors, and in severe cases, seizures or coma.

Is marijuana toxic to dogs?
Marijuana can be toxic to dogs, especially in large amounts, and may require veterinary intervention to prevent serious health complications.

What should I do if my dog ingests weed?
Contact a veterinarian immediately. Do not induce vomiting without professional guidance, as prompt medical care is essential.

Can CBD products be safely given to dogs?
CBD products formulated specifically for pets may be safe in controlled doses, but always consult a veterinarian before administration.

How can I prevent my dog from getting exposed to marijuana?
Store all cannabis products securely out of reach, avoid smoking around pets, and educate household members about the risks to pets.
Dogs can indeed be affected by marijuana, but it is important to understand that their experience is not the same as humans getting “high.” When dogs ingest cannabis, they can exhibit symptoms such as lethargy, disorientation, drooling, vomiting, and in severe cases, seizures or even coma. This occurs because dogs have a different metabolism and are more sensitive to the psychoactive compound THC, making cannabis potentially toxic to them.

It is crucial for pet owners to prevent accidental ingestion of marijuana products, including edibles, as these often contain higher concentrations of THC and other harmful ingredients like chocolate or xylitol. If a dog is suspected of consuming cannabis, immediate veterinary attention is essential to ensure proper care and avoid serious health consequences.

Overall, while dogs can be affected by cannabis, it is neither safe nor recommended to intentionally expose them to marijuana. Responsible pet ownership involves keeping cannabis products securely stored and being aware of the risks associated with accidental ingestion. Understanding these factors helps protect canine health and wellbeing effectively.

Author Profile

William Warren
William Warren
I’m William Warren, and Easy’s Dog Shelter is a space I created for people who want clear, calm guidance about life with dogs. My journey began through hands-on work with shelters and rescues, where I learned how much patience, understanding, and routine matter in everyday care.

Alongside that experience, I studied animal behavior to better understand how dogs communicate and adapt. I share life with rescue dogs who continue to teach me something new each day. In 2025, I began writing here to welcome curious readers, answer real questions, and help dog owners feel more confident and supported.