My 15-pound dog ate 5mg melatonin. Is this dose dangerous for him?

Related Answers from Veterinarians

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  Answered By Eryn Taormina, DVM

  Veterinarian

  Published on November 12th, 2018

  Hi there! I'm sorry to hear about Biggie's troubles! Although there is limited information on the overdosage and toxicity of melatonin in dogs, it is assumed that it is unlikely to cause severe issues with one accidental overdose. Melatonin can actually be prescribed for various medical conditions. In Biggie's case, 10-25mg is a little much, but again, it shouldn't really cause a problem if it just happened this one time. I would keep an eye on Biggie for a few days. Make sure he is acting like his normal self, isn't lethargic or depressed. Make sure he is eating and drinking normally and having normal stools. If he appears sick at any time, you should of course have him evaluated by his veterinarian. Another option you do have, is to call poison control. They may have some more specific information on the potential toxic effects of melatonin. As far as potential toxins go, they always have the most up to date information, and can really put your mind at ease 100%. However, I again do not think that 10mg should pose a huge problem. I hope you find this answer helpful! Best of luck!

  

  2Pet Parents found this answer helpful

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  Answered By David Elbeze, DVM, MRCVS

  Veterinarian

  Published on April 6th, 2018

  Melatonin is, in general, not a toxic drug. however, little is known about toxicity in dogs/cats. Adverse effects reported in humans include altered sleep patterns, hypothermia, sedation, tachycardia, confusion, headache, and pruritus. the main concern would be the sedation, if it becomes too noticeable then it might be a good idea to take him to your vet in order to get him checked. if he ingested the pills less than 2 hours ago i would also recommend taking him to your vet to get an injection to induce vomiting.

  

  2Pet Parents found this answer helpful

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  Answered By Claudia Fioravanti

  Veterinarian

  Published on November 19th, 2016

  He has had 4.5 mg/kg which is an overdose compared to routine dosages used. I could not find any data regarding dogs overdosing which were not sky high. My opinion is that he is likely to have a long sleep and a bit of nausea if anything. However if you want to be in the safer side , you can contact the local veterinary poison unit, or contact a local vet to have sickness induced if concerned .

  

  2Pet Parents found this answer helpful