Opioids and Opiates Poisoning in Dogs

Written By hannah hollinger
Published: 07/07/2016Updated: 09/09/2021
Veterinary reviewed by Michele K.
Opioids-and-Opiates Poisoning in Dogs - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost

What is Opioids and Opiates Poisoning?

There are many medications made from opium, both prescription and street drugs. Some of those are morphine, heroin, hydrocodone, codeine, and methadone. The cardiovascular, gastrointestinal, respiratory, and central nervous systems are all affected by opioids and opiates, slowing down breathing and heart rate. Opioid and opiate poisoning can occur from accidental ingestion of human medication and accidental overdose from giving the wrong dosage. The effects are seen within about 30 minutes, depending on the method of exposure and amount ingested. The most common cause of opioid or opiate poisoning is the oral ingestion of human medication, from pills or patches. The most common signs of toxicity are severe drowsiness, slow breathing and heart rate, seizures, and vomiting. If you believe your dog may have gotten a toxic dose of opioids or opiates, call your veterinarian immediately or go to the animal hospital, even if there are no symptoms yet.

Opioids and opiates are medications made from opium, which is a drug derived from the liquid (latex) inside of a poppy. These medications are used for pain relief in people and animals, blocking the pain signals from reaching the brain. Many veterinarians use opioids and opiates in the hospital for pain relief and sedation in dogs during and after medical procedures. Sometimes, the veterinarian will prescribe pain medication for your dog, but most do not use opiates or opioids for dogs unless under medical supervision. This is because, even small doses, opioids and opiates can be dangerous for your dog due to the extreme effect it has on the central nervous system. Your dog can become unconscious and stop breathing within minutes of ingestion, so veterinarians will only prescribe opioids and opiates for pain in extreme circumstances. It is also possible for your dog to be poisoned from getting into your pain medication, either oral or patch form, and this can be fatal if not treated immediately.

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Opioids and Opiates Poisoning Average Cost

From 38 quotes ranging from $500 - $6,000

Average Cost

$1,800

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Symptoms of Opioids and Opiates Poisoning in Dogs

The symptoms of opioid and opiate poisoning have similar symptoms but can vary depending on the animal. In some cases, these drugs can cause sleepiness, but in others, the same amount of the same drug may cause excitability. The most commonly reported signs of toxicity are:

  • Abnormal behavior
  • Coma
  • Dilated pupils
  • Drooling
  • Loss of appetite
  • Seizures
  • Severe sedation
  • Slowed heart and breathing rate
  • Tremors
  • Vomiting
  • Walking as if drunk
  • Weakness

Less common symptoms are:

  • Extreme excitability
  • Nervousness
  • Respiratory arrest (not breathing)
  • Shaking uncontrollably
  • Sleepiness

 Types

  • Opioid poisoning is caused by overdose of a narcotic pain reliever that is at least partially man-made and not found in nature
  • Opiate poisoning results from ingestion of a large amount of a narcotic pain reliever made naturally from the opium sap of a poppy

Causes of Opioids and Opiates Poisoning in Dogs

Many different medications and drugs can cause opioid or opiate poisoning, such as:

  • Atarax
  • Buprenorphine
  • Butorphanol
  • Codeine
  • Demerol
  • Dilaudid
  • Diphenoxylate
  • Fentanyl
  • Heroin
  • Hydrocodone
  • Hydromorphone
  • Loperamide
  • Lortab
  • Meperidine
  • Methadone
  • Morphine
  • Norco
  • Oxycodone
  • Oxymorphone
  • Pentazocine
  • Profadol
  • Propoxyphene
  • Tramadol

Diagnosis of Opioids and Opiates Poisoning in Dogs

Your veterinarian will start by doing a complete physical of your dog, including eye, ear, and nose exam, reflexes, pulse and respiration rates, height, weight, body temperature, and blood pressure. Be prepared with your dog’s complete medical history, even if you are seeing your regular veterinarian. It saves time if the veterinarian does not have to go through paperwork to find out if your dog has had his shots and what recent illnesses and injuries he has had.

One of the first tests your veterinarian will likely perform is a complete blood count (CBC) to measure platelets, white, and red blood cells. Blood chemistry, liver enzyme function, and a toxicology screening will also be done. Some of the other tests that may be recommended are radiographs (x-rays) of the chest and abdomen and an electrocardiogram (ECG) to measure the electrical and musculature activity of the heart.

Treatment of Opioids and Opiates Poisoning in Dogs

Treatment depends on the amount of drugs ingested and your dog’s condition upon arrival. If your dog is in respiratory arrest, the veterinarian will begin oxygen therapy and place a nasal cannula in your dog’s nose to administer oxygen continuously. IV fluids and medication will be started to treat whatever symptoms your dog is experiencing. To counteract the opioid or opiate, a drug called naloxone will be given to block the narcotic effects. The veterinarian will also prescribe an anti-anxiety medication and medicine to stop seizures if needed. They will most likely keep your dog overnight for observation to monitor heart rate, blood pressure, and breathing rate.

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Recovery of Opioids and Opiates Poisoning in Dogs

Once your dog is released to go home, the veterinarian may prescribe anti-anxiety medication for a few days to give as needed to keep your dog relaxed. It is important for his recovery to get rest and not be agitated. Be sure to follow up with the veterinarian as needed and call if you have any questions or concerns. Keep all medications out of the reach of your dog to prevent this from happening again.

Opioids and Opiates Poisoning Average Cost

From 38 quotes ranging from $500 - $6,000

Average Cost

$1,800

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Opioids and Opiates Poisoning Questions and Advice from Veterinary Professionals

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Chihuahua terrier

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Two Years

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0 found this helpful

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0 found this helpful

My pet has the following symptoms:
Shivering Crying
My dog licked a suboxone tablet. He is whining and shaking.

July 27, 2020

Answered by Dr. Michele K. DVM

0 Recommendations

Thank you for your question. Unfortunately, I do not know what that medication is, and I'm not familiar with it. It would be best to either call your veterinarian, an emergency clinic in your neighborhood, or a pet poison hotline and give them more details on what that medication is, how much your dog weighs, and how much we think that your dog ate. The signs you are describing may or may not be related, and if they do not get better and your dog is not feeling better, it would be best to have your dog seen by a veterinarian right away. I hope that all goes well.

July 27, 2020

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Australian Shepherd

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Mack

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22 Months

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1 found this helpful

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1 found this helpful

My pet has the following symptoms:
Seizures
My 20 month old Aussie went in for a xray on for his hip. They gave him hydrocodone 2.58ML. When we brought him home his tongue was turning blue and out to the side, labored breathing. I called the Vet and they said it was a strong dose and common for this and maybe he bit his tongue. 3 weeks later he had 4 Grand-Mal Seizures in 1 day. Something is not right. $5000 later I'm not convinced he didn't have a reaction from the hydrocodone. I spoke to Supervisor Vet and was told well we know now not to give him that much. I'm really not ok.

July 18, 2018

Answered by Dr. Michele K. DVM

1 Recommendations

I'm not sure what your question is that I might be able to help you with, but I am sorry that is happening to Mack. Common side effects from that medication include sedation and decreased rate of breathing. One course of action that you may have is to contact the licensing board for veterinarians in your area, as every veterinarian is governed by a board, and any client can report a potential problem for investigation.

July 18, 2018

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Opioids and Opiates Poisoning Average Cost

From 38 quotes ranging from $500 - $6,000

Average Cost

$1,800

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