Tea tree oil is one of the active ingredients in many dog shampoos. There have been accounts by pet owners of tea tree oil poisoning in their dogs, according to sheltienation.com. This essential oil is listed as a poisonous substance by the American Society for Prevention of Cruelty to Animals Poison Control, and is especially harmful to small dogs and cats. Veterinary treatment is usually expensive and sometimes unsuccessful. The key to safely using tea tree oil for dogs is in its dilution.
Tea Tree Oil
Also known as Australian tea tree oil, or Melaleuca alternifolia oil, this substance is often used by humans for skin disorders such as acne, athlete's foot and toenail fungus. Other uses include the eradication of scabies and head lice. In dogs, tea tree oil is often incorporated into flea shampoos and other insecticidal products. In these forms, tea tree oil is only a small percentage of the recommended dosage. Tea tree poisoning appears to occur most often when applied to dogs in its undiluted form, directly to the skin. Tea tree oil is absorbed quickly into the skin and disseminated throughout the system because it is fat-soluble.
The first sign of tea tree poisoning in dogs is usually lethargy. Pet owners often report that, in the morning, they find their dogs in the same position they went to sleep. When applied directly to the skin, tea tree oil can result in weakening of the muscles, difficulty of coordinated movement, depression and lowered body temperature, also known as hypothermia. If your dog eats tea tree oil or licks it off its skin, serious gastrointestinal symptoms may occur, including diarrhoea and vomiting. Loss of consciousness and seizures may also result. If you burn tea tree oil, your pet may develop respiratory problems, such as pneumonia from breathing it in.
In its pure form, tea tree oil has a high potential for toxicity in dogs, according to the ASPCA Animal Poison Control Center. It can cause kidney failure, seizures, comas and death. The ASPCA says that 20 per cent of all poisonings in animals are related to substances people use to treat their pets for fleas and other parasites. Since tea tree oil is often used for this purpose, the ASPCA recommends never using a substance not specifically labelled for pet use, and always consulting your veterinarian. Consult the label of a pet-specific product for dosage and method of use.
There is no antidote for tea tree poisoning in dogs, according to a 1998 report published in the Journal of Veterinary Diagnostic Investigation. A 2011 article on the ASPCA Animal Poison Control website agrees that supportive care is the only available treatment. Cleansing the dog and keeping it hydrated is essential. If the tea tree oil was ingested, treatment with activated charcoal is also recommended.
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- ASPCA Animal Poison Control Center: Tea Tree Oil
- "Australian tea tree (Melaleuca alternifolia) oil poisoning in three purebred cats." Journal Of Veterinary Diagnostic Investigation: Official Publication Of The American Association Of Veterinary Laboratory Diagnosticians, Inc.; Bischoff, K, and F Guale; 1998.
- MedlinePlus: Tea Tree Oil
- SheltieNation.com: Tea tree oil is toxic to dogs