This can be seen in dogs too, with massive ingestions > 200 mg/kg. In dogs, acetaminophen poisoning can cause elevated liver enzymes and progress to liver failure, while in cats, it causes an abnormal ability for red blood cells (RBCs) to carry oxygen (due to methemoglobinemia), resulting in life-threatening low oxygen levels. More importantly, know that dogs and cats develop different types of poisoning from acetaminophen. This same dose is very poisonous in cats! That’s because some species metabolize drugs differently, resulting in poisoning at different doses. In dogs, we typically use low dose (e.g., 10-15 mg/kg orally every 8-12 hours). Tylenol should NEVER be used in cats, as cats can develop clinical signs of poisoning at very low doses. At appropriately prescribed doses, this can be safe… that is, in dogs ONLY. When it comes to poisoning, it’s the “dose that makes the poison.” Sometimes, we will prescribe Tylenol with codeine in dogs with severe pain. However, it can be very poisonous to cats, ferrets, and even dogs, depending on what dose is ingested. This popular anti-fever medication is commonly found in households, as it’s very safe for humans (even pregnant women!). (BTW, if you live in another country, this is called paracetamol instead). Posted by justinelee in Animal Safety, BlogĪccording to the ASPCA Animal Poison Control Center, Tylenol, the brand name for the over-the-counter (OTC) pain medication acetaminophen, is one of the top 10 causes for poisoning in dogs and cats. Justine Lee, DACVECC, DABT, Board-certified Veterinary Specialist
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