By Renee Schmid, DVM & Ahna Brutlag, DVM, MS, DABT, DABVT Pet toxicity Helpline; Dr. Colleen M. Almgren, DVM, PhD, Pet toxicity Helpline.

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Acetaminophen (Tylenol®, Paracetamol, APAP, N-acetyl-p-aminophenol) is a medication provided for pains relief and fever palliation in people. That is a well-known over-the-counter oral medication and is also available by prescription. Acetaminophen may be the only ingredient in a medicine or be part of a mix product containing other medications. These medicines may incorporate aspirin, opioids, antihistamines, decongestants, and also caffeine. Typical uses include the therapy of headaches, pain, colds, flu, and also menstrual discomfort.

Acetaminophen is obtainable in plenty of forms including tablets, capsules, gel caps, melt away tablets, rectal suppositories, and liquids. Paracetamol is often discovered in dwellings with pets. Poisoning may occur when pets obtain into the owner’s medications. In some cases, owner may carry out acetaminophen come treat their pet’s pain in ~ unsafe doses. Short doses that acetaminophen may be encourage in dogs for particular indications and also should just be given under the direction of a veterinarian.

Why is paracetamol (Tylenol) toxic (poisonous) because that dogs and also cats?

Acetaminophen is typically safe for humans at the encourage dose. The management (mechanism because that breaking down and removing drugs from the body) of acetaminophen is various in dogs and cats 보다 in humans. This way that relatively small doses, also a small piece that a pill, might be toxicity for dogs or cats.

Cats are particularly sensitive come acetaminophen. Cats have less practical cellular pathways because that certain varieties of medicine metabolism, consisting of acetaminophen. Due to the fact that cats space not may be to effectively metabolize acetaminophen, they are much more vulnerable come poisoning. Cats construct intoxication in ~ much reduced doses 보다 those that cause poisoning in dogs.

What have to I carry out if my dog or cat eats acetaminophen?

If the exposure simply occurred and your pet is no yet showing any signs the illness, call your veterinarian or Pet toxicity Helpline, a 24/7 animal poison control, at 800-213-6680. At an early stage assessment and also treatment boost the chance for a safe and successful outcome.

If your dog or cat is showing any signs that distress, immediately transport your pet to your veterinarian or the next veterinary emergency clinic. Be sure to take the pill bottle and also remaining pills through you. That is vital to carry out as much details as feasible regarding the form of medication, lot ingested, timing of ingestion and symptoms. It may be valuable to take an old ceiling or towel incase your pet i do not care nauseated and vomits throughout the automobile ride. If vomiting occurs, inspect for any type of evidence the medication and also note the amount present before discarding the vomit. If you room not maybe to perform this, save the vomit so that the veterinary staff deserve to examine it because that you.

Try to remain calm and provide as much of the info requested by her veterinarian or Pet poison Helpline together possible. Details should be detailed for all pets with accessibility to the mediation. This info is an essential to judge the danger of poisoning and carry out the best feasible recommendations for her dog or cat.

Information that may be requested include:

Age, weight, and breed the the pet Time of ingestion The quantity of medication ingested (If the number of pills the was originally existing in the bottle is known, counting the remaining pills to determine how plenty of were ingested) The toughness of the medication (how numerous milligrams per pill or every ml) any type of other ingredients present in the pills (e.g., antihistamine, caffeine, etc.) The pet’s medical history including what other medication they are taking any type of current symptoms

What room the indicators of paracetamol (Tylenol) poisoning in dogs or cats?

Pets may show no indications initially. Acetaminophen can cause liver damage or diminish the red blood cell’s ability to bring oxygen (due come methemoglobinemia). Cat are more likely to develop early red blood cell transforms while dogs are much more likely to build liver damage. Depending upon the dose, both red blood cell changes and liver damage may happen in one of two people species.

Red blood cell changes can happen within 4-12 hours. Pets may come to be weak and depressed. They additionally may stop eating and also develop rapid breathing, a high love rate, panting, ab pain, vomiting or drooling. Your mucous membranes, including the gums or tissue approximately the globe of the eye, may develop a bluish shade called cyanosis. These areas may likewise develop a chocolate brown shade from methemoglobin accumulation. Part pets develop swelling in the face, paws, and forelimbs several hours after eat acetaminophen.

Liver damages may be delayed for several days. In addition to the indicators above, dark urine, yellow discoloration of the eyes or skin, an enlarged abdomen, boosted drinking and urination or discolored feces may be seen. If these indicators are not recognized and treated, fatality may occur.

Dry eye (keratoconjunctivitis) can also be resulted in by acetaminophen poisoning. Squinting, discharge indigenous the eyes, pawing at the face and eye pain are indications of this condition. If the ingested acetaminophen was combined with other medications, added signs may occur. This may encompass wobbliness, weakness, depression, hyperactivity, agitation, disorientation, vocalizing, alters in heart rate, pale gums, tremors, seizures, or boosted body temperature.

How is paracetamol (Tylenol) poisoning diagnosed in a dog or cat?

Acetaminophen poisoning might be suspected when pets construct changes in the red blood cells, indicators of liver damage or various other signs regular with acetaminophen poisoning. Most situations are diagnosed in pets that have the intended signs and also a known or doubt exposure to acetaminophen. Paracetamol levels in the blood have the right to be measured in ~ a person hospital or devoted laboratory, however, testing for paracetamol levels is not common. The results may not be reverted quickly and also finding a laboratory to operation the trial and error for animals may it is in difficult. Because the results might be delayed, therapy is frequently started without testing if poisoning is suspected.

How is paracetamol poisoning treated in dogs and cats?

Early decontamination and treatment diminish the danger for major toxicity. If acetaminophen ingestion emerged within a couple of hours that treatment, the veterinarian might induce vomiting or do flushing of the stomach (gastric lavage). When vomiting is controlled, caused charcoal might be administered. This have the right to decrease absorption of acetaminophen from the cradle tract. Caused charcoal should only it is in administered by a veterinarian. Otherwise, aspiration right into the lungs and life-threatening changes in sodium levels might occur.

Depending top top the dose ingested, hospitalization might be needed. Fluids may be administered under the skin or intravenously. A medicine referred to as N-acetylcysteine is one of the primary treatments. Other medications, such together liver protectants and Vitamin C, may likewise be given.

If liver damage occurs or methemoglobin level in the blood climb rapidly, more intensive therapy is needed. These transforms increase the threat for long-term impacts or also death. Pet that build a short red blood cell counting (anemia) or a decreased ability of the red blood cell to bring oxygen (due to methemoglobinemia) may require oxygen supplementation or a blood transfusion. Pets v liver damages can build an raised chance that bleeding. This pets may need Vitamin K or plasma transfusions. Lock may also need dextrose in their fluids to store blood glucose levels stable.

What is the prognosis for recovery with dogs and also cats exposed to acetaminophen?

The outcome counts on many factors, consisting of the initial health of the pet, lot ingested, other drugs ingested and also time to treatment. With early on treatment, pet are much less likely to develop long-term effects. Some pets may have actually permanent liver damage. Return uncommon, death may happen with high doses or when treatment is delayed.

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What steps have the right to I take to avoid acetaminophen toxicity in my pet?

never ever give any kind of medication come a pets without first consulting a veterinarian. Execute not leave any kind of medications, including vitamins and supplements, where unattended pets may reach them. That is not uncommon for pets to chew with closed bottles. Curious pets may want to inspect out purses, ago packs, having lunch boxes or suitcases. Some pets will also open reduced cabinets or acquire into open drawers. Keep in mind that pets can get on counters or hit items turn off counters and tables. Perform not assume a pet will prevent eating a medication just because it has actually a bad taste. If medications are dropped, confine every pets in one more area the the home until all the medication deserve to be choose up.

Whenever a toxic exposure is suspected, immediate activity is recommended. Early on consultation and also treatment can aid prevent serious health effects.


Pet toxicity Helpline, an pet poison control center based out of Minneapolis, MN is easily accessible 24/7 for pet owners and veterinary experts that require assistance treating a perhaps poisoned pet. The staff provides treatment advice for poisoning cases of every species, consisting of dogs, cats, birds, little mammals, big animals and exotic species. As the many cost-effective alternative for animal poison regulate care, Pet poison Helpline’s fee of $65 every incident consists of follow-up consultations for the term of the poison case. Pet poison Helpline is easily accessible in phibìc America by phone call 800-213-6680. Extr information have the right to be found online at