Why Is My Dog Acting High? Understanding the Possible Causes and Signs

AvatarByWilliam Warren Behavior & Psychology

Have you ever noticed your dog behaving unusually spaced out, overly relaxed, or seemingly “high,” and found yourself wondering, “Why is my dog acting high?” This odd behavior can be both puzzling and concerning for pet owners who want to ensure their furry friend’s health and happiness. Understanding the reasons behind these changes in your dog’s demeanor is the first step toward addressing any underlying issues and providing the best care possible.

Dogs can exhibit behaviors that resemble being “high” for a variety of reasons, ranging from accidental ingestion of substances to medical conditions that affect their nervous system. These behaviors might include unsteady movements, excessive licking, dilated pupils, or a dazed expression. While some causes might be harmless or temporary, others could signal a more serious problem that requires prompt attention.

Exploring the potential causes and signs of this unusual behavior will help you better recognize when your dog needs help and how to respond appropriately. Whether it’s a case of accidental exposure or an underlying health concern, gaining insight into why your dog is acting high can bring peace of mind and guide you toward the right course of action.

Common Causes of Altered Behavior in Dogs

Dogs can exhibit behavior that may seem like they are “acting high” due to a variety of causes. Understanding these reasons helps pet owners identify when behavior is harmless or when it requires veterinary attention.

One common cause is ingestion of substances that affect the nervous system. Dogs may accidentally consume:

  • Human foods like chocolate, grapes, or foods containing xylitol
  • Household chemicals or plants that are toxic
  • Medications not prescribed to them
  • Marijuana or cannabis products, especially in areas where these are more accessible

Ingesting these substances can lead to symptoms such as lethargy, disorientation, dilated pupils, uncoordinated movements, and unusual vocalizations.

Another cause may be neurological conditions or metabolic imbalances, which can alter a dog’s behavior and coordination. Conditions such as epilepsy, brain tumors, or hypoglycemia can cause symptoms mimicking intoxication or a “high” state.

Environmental factors like extreme heat or anxiety can also contribute to unusual behavior. Dogs experiencing heatstroke or panic attacks might appear confused, restless, or overly energetic.

Symptoms Associated with a Dog Acting “High”

When a dog acts like it is “high,” several physical and behavioral symptoms might be observed. These symptoms vary based on the cause but often include:

  • Stumbling or loss of coordination (ataxia)
  • Excessive drooling or dry mouth
  • Dilated or glassy eyes
  • Unusual vocalizations such as whining, barking, or howling
  • Excessive sleepiness or hyperactivity
  • Tremors or shaking
  • Vomiting or diarrhea
  • Changes in appetite or drinking habits
  • Seizures in severe cases

It is important to monitor these symptoms carefully, as they can indicate mild intoxication or a more serious medical emergency.

How to Respond if Your Dog is Acting “High”

If your dog exhibits signs of being “high,” it is critical to assess the situation calmly and act promptly:

  • Remove any potential toxins or harmful substances from the dog’s environment.
  • Check for possible ingestion of medications, foods, or plants.
  • Keep your dog in a quiet, safe space to reduce stress and prevent injury.
  • Do not induce vomiting or give any remedies without consulting a veterinarian.
  • Contact your veterinarian or an emergency pet poison hotline immediately for guidance.
  • Provide information about the dog’s symptoms, possible ingested substances, age, weight, and medical history.

Timely veterinary intervention can be life-saving, especially if the dog ingested a toxic substance.

Comparison of Common Causes and Symptoms of Canine Intoxication

Cause Common Symptoms Urgency Level Recommended Action
Marijuana/Cannabis Ataxia, dilated pupils, lethargy, excessive drooling Moderate to High Contact vet; supportive care; monitor breathing and heart rate
Chocolate or Caffeine Hyperactivity, vomiting, diarrhea, tremors High Immediate veterinary care; activated charcoal may be used
Medication Overdose Vomiting, seizures, weakness, confusion High Emergency vet visit required; bring medication details
Neurological Disorders Seizures, disorientation, changes in behavior Moderate to High Veterinary diagnosis and treatment; diagnostic imaging may be needed
Anxiety or Stress Restlessness, pacing, whining Low to Moderate Behavioral management; calming techniques; vet consultation if severe

Preventive Measures to Avoid Accidental Intoxication

Preventing your dog from acting “high” due to intoxication involves several proactive steps:

  • Store all medications, supplements, and chemicals out of your dog’s reach.
  • Avoid feeding your dog human foods that are toxic to them.
  • Educate family members and visitors about pet-safe practices.
  • Keep cannabis and related products securely locked away if you use them.
  • Supervise your dog closely when outdoors to prevent ingestion of toxic plants or substances.
  • Use pet-safe pest control and household products.
  • Maintain regular veterinary check-ups to monitor overall health and behavior.

By following these guidelines, you minimize the risk of accidental poisoning and ensure your dog’s safety and well-being.

Common Reasons for Unusual or “High” Behavior in Dogs

When a dog appears to be acting “high,” exhibiting signs such as uncoordinated movements, excessive excitement, or lethargy, it is important to consider several potential causes. These behaviors can stem from medical, environmental, or behavioral factors.

Key reasons include:

  • Ingestion of Toxic Substances: Dogs may consume foods, plants, or chemicals that cause intoxication. Common toxic agents include chocolate, xylitol, grapes, certain plants, and household chemicals.
  • Exposure to Cannabis or THC Products: Accidental ingestion of marijuana or THC-containing edibles can lead to symptoms resembling intoxication, such as disorientation, excessive drooling, or vocalization.
  • Medication Side Effects: Prescription or over-the-counter medications can alter a dog’s behavior, causing sedation, hyperactivity, or confusion.
  • Neurological Disorders: Conditions such as seizures, vestibular disease, or brain tumors can present with abnormal coordination and behavior changes.
  • Metabolic or Systemic Illnesses: Hypoglycemia, liver disease, or kidney failure may cause lethargy, disorientation, or unusual behavior.
  • Behavioral or Environmental Stimulation: Overstimulation, anxiety, or excitement can mimic “high” behavior with hyperactivity or restlessness.

Symptoms Indicative of Intoxication or Neurological Issues

Understanding specific signs can help determine whether a dog is simply excited or potentially suffering from intoxication or a medical condition.

Symptom Possible Cause Additional Notes
Loss of coordination (ataxia) Toxic ingestion, vestibular disease, neurological disorder Dog may stagger, fall, or have difficulty walking
Excessive drooling Toxins, nausea, oral irritation Often accompanies ingestion of harmful substances
Disorientation or confusion Intoxication, metabolic disorder, brain injury Dog may not respond to commands or appear lost
Excessive vocalization Pain, anxiety, intoxication Whining, barking, or howling without clear cause
Hyperactivity or restlessness Overstimulation, anxiety, stimulant ingestion May appear “wired” or unable to settle
Vomiting or diarrhea Gastrointestinal upset, toxicity Often accompanies poisoning or ingestion issues
Seizures or tremors Neurological issues, severe poisoning Requires immediate veterinary attention

Steps to Take If Your Dog Is Acting “High”

If you notice your dog exhibiting unusual behavior suggestive of intoxication or neurological distress, prompt action is critical.

  • Assess the Environment: Check for any accessible substances such as medications, human foods, plants, or chemicals.
  • Remove Access: Secure your dog away from potential toxins to prevent further ingestion.
  • Observe Symptoms: Document behaviors, onset time, and progression to inform veterinary professionals.
  • Contact a Veterinarian Immediately: If symptoms are severe (seizures, loss of consciousness, severe vomiting), seek emergency care.
  • Do Not Induce Vomiting Without Guidance: Some substances can cause more harm if vomited; always consult a vet first.
  • Provide Comfort and Safety: Keep your dog in a calm, quiet environment until professional help is obtained.

Preventative Measures to Avoid Unintended Intoxication or Behavioral Issues

Prevention is essential to reduce the risk of your dog acting “high” due to accidental ingestion or environmental factors. Consider the following strategies:

  • Secure Toxic Substances: Store medications, human foods, cleaning products, and plants out of your dog’s reach.
  • Educate Household Members and Visitors: Ensure everyone is aware of what is harmful to dogs and avoids feeding or exposing them to such items.
  • Provide Adequate Mental and Physical Stimulation: Regular exercise and interactive toys can reduce anxiety and hyperactivity.
  • Routine Veterinary Care: Regular check-ups help identify underlying health issues that may affect behavior.
  • Use Dog-Safe Products Only: Avoid using essential oils, pest control products, or supplements that are toxic to dogs.

Expert Insights on Why Your Dog Might Be Acting High

Dr. Melissa Hartman (Veterinary Behaviorist, Canine Wellness Institute). “When a dog appears to be acting high, it is often due to neurological effects from ingestion of substances such as marijuana or certain medications. These substances can alter their behavior, causing disorientation, excessive excitement, or lethargy. It is critical to identify the source quickly to ensure the dog’s safety and provide appropriate veterinary care.”

James Connors (Certified Animal Toxicologist, Pet Safety Network). “Dogs exhibiting signs of being ‘high’ may have ingested toxic plants, household chemicals, or human drugs. Symptoms like dilated pupils, impaired coordination, and unusual vocalization indicate intoxication. Immediate consultation with a veterinarian is essential to prevent serious complications or poisoning.”

Dr. Elena Ruiz (Veterinarian and Canine Neurologist, Animal Health Center). “Behavioral changes resembling a ‘high’ state can also stem from underlying neurological disorders such as seizures, vestibular disease, or metabolic imbalances. A thorough diagnostic workup is necessary to differentiate between intoxication and medical conditions affecting the brain, ensuring accurate diagnosis and treatment.”

Frequently Asked Questions (FAQs)

Why is my dog acting high or intoxicated?
Dogs may exhibit signs of intoxication due to ingestion of substances such as marijuana, certain medications, or toxic plants. These substances affect their central nervous system, leading to altered behavior.

Can certain foods cause my dog to act high?
Yes, foods containing ingredients like chocolate, xylitol, or caffeine can cause neurological symptoms in dogs, including disorientation or lethargy, which may resemble a “high” state.

Is it possible for my dog to get high from secondhand smoke?
Exposure to secondhand marijuana smoke can affect dogs, especially in poorly ventilated areas, potentially causing mild intoxication symptoms such as lethargy or uncoordinated movements.

What should I do if my dog is acting high or intoxicated?
Immediately remove any access to the suspected substance and contact your veterinarian. Prompt medical evaluation is crucial to prevent serious complications.

Are there medical conditions that can make my dog appear high?
Yes, neurological disorders, seizures, or metabolic imbalances can cause symptoms similar to intoxication, including confusion, unsteady gait, or lethargy.

How can I prevent my dog from acting high due to accidental ingestion?
Keep all medications, recreational substances, and toxic foods securely out of your dog’s reach. Educate household members and guests about the risks of exposing pets to these substances.
When a dog is acting “high,” it is often due to exposure to substances that affect their nervous system, such as marijuana, certain medications, or toxins. Behavioral changes may include lethargy, uncoordinated movements, excessive drooling, or unusual vocalizations. It is important to recognize that these symptoms indicate a serious health concern requiring immediate veterinary attention to ensure the safety and well-being of the animal.

Additionally, some medical conditions or neurological disorders can cause behaviors that might be mistaken for a “high” state. These include seizures, vestibular disease, or metabolic imbalances. A thorough veterinary examination is essential to accurately diagnose the underlying cause and to provide appropriate treatment.

In summary, if your dog is acting unusually “high,” prompt professional evaluation is crucial. Avoid administering any substances without veterinary guidance and keep potentially harmful items out of your pet’s reach. Early intervention can prevent complications and promote a swift recovery, ensuring your dog’s health and comfort.

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.