My dog accidentally got a double Nexgard dose. Will she be okay?

NexGard has a large margin of safety if as dog gets or eats multiple doses. Monitor for GI upset and feed a bland diet for a few days to settle the stomach. Your dog will likely suffer no ill effects.

Thank you for contacting Petco Pet Education Center with your question about Rockelle. She should be ok. According to studies done by Zoetis who make Simparica, "In the overdose groups, transient and self-limiting neurological signs were observed in some animals: mild tremors at 3 times the maximum exposure dose and convulsions at 5 times the maximum exposure dose. All dogs recovered without treatment." You don't need to do anything. I hope this helps!

While the safe use of NexGard in pregnant, breeding or lactating dogs has not been evaluated, I have not yet heard any specifically adverse effect of Nexguard in pregnant dogs. You have a choice: If you are afraid it may affect the puppies, you can go to a PetER and have the vet give her apomorphine to regurgitate the Nexgard, This will only work, if she ingested it within the past two hours. Or you can do nothing and hope all is well.

She'll probably be fine for this month if she's just a pound or two over. But in the future, if she's gained a bit of weight and is now borderline or just over the maximum weight for her current dose, I would get the next size up. Nexgard has a very wide margin of safety, so the manufacturer recommends "rounding up" if a dog is near the upper limit of the weight range. :)

He should be OK. Don't give him the next dose of the medications until March 1st and even then, it is best to give one drug one day, wait a few days and then give the other. Giving them at the same time may be too hard on his system.

This medication contains a combination of Spinosad and Milbemycin. Milbemycin can be used safely in dogs for heartworm prevention but has other uses as well, and can be given at a dose two to four times the normal dose that we use for heartworm prevention, so I would not worry at all about a higher then normal dose of that medication. Spinosad is used for flea prevention and is a relatively safe drug. The most common side effects seen with its use include a decreased appetite, vomiting, diarrhea, lethargy and rarely, in dogs with a low seizure threshold, possible seizures. Studies on research dogs showed no long term effects on dogs that were given TEN times the recommended dose. Side effects that were seen at that high dose included nausea, vomiting, a decrease in appetite and some diarrhea. She will probably be OK but all you can do at this stage is monitor her for any signs of toxicity. If any are noticed she needs to see a vet immediately.

Hello and thank you for your post! This combination will not likely cause any side effects. Ideally only one should be given at a time but not nexgard and frontline together should be ok. I would, however, monitor your dog for any symptoms such as tremors, seizures, excessive salivation, lethargy and get your dog seen as soon as possible by an emergency vet for treatment. Please feel free to consult with me with any further questions or concerns you may have!