What happens if my dog got too much Advantix II for his weight?

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. :)

Hello, sorry to hear about your accident. Yes the medicine will work on her and she should be after receiving the wrong dose. This medications is reported to have more toxic effects when ingested than when applied topically. Things you can consider is to bathe your dog if you believe she is feeling unwell to wash the medication off her coat. Call the ASPCA poison control line for better information about the toxic dose of imidacloprid, one of the active ingredients of this medications. Their number is (888) 426-4435. Hope this helps and best of luck.

I would still use a heartworm prevention. The K9 advantix may repell mosquitoes but it will not prevent 100%. I have a lot of people who uses the generic heartgard and don't have any breakthroughs. I would not give the 11-20 lbs Advantix to a dog less than 11 pound. My only concern is that is may cause him to be really lethargic due to being a little higher dose than he needs. I would see if you can buy one dose for a smaller dose of Advantix or a different flea preventative like frontline. I hope this helps!

This is because the active ingredient amount is weight dependent. A bigger pet needs more of the active ingredient to kill the fleas than a smaller pet. It's fine to use these on your pets this month and next month. If they are close to a year old, they will not grow much bigger. I hope this helps!

It would not be recommended to do this, as a Seresto collar and Advantage II have the same active ingredients - so you would essentially be giving your dog a double dose of medication, which may not be safe. It shouldn't be necessary to use two different flea control medications as long as you are using an appropriate size/dose for your dog's weight. If you are already using one of these products and are finding that it is not effective, I would recommend switching to a different flea medication entirely, such as Nexgard or Bravecto - these are both much more effective in my experience.

I wouldn't recommend using it on Sunny since she weighs less than the dose range. While dogs aren't as sensitive to flea treatment overdose as cats are, the potential is still there to cause toxic symptoms such as muscle twitches and loss of coordination. It's best to strictly follow the weight guidelines to prevent any toxicity from occurring. I would exchange the Frontline for a dose in her weight range.

Topical products can take a few hours to absorb into the skin. If applied more to the fur than skin it may take a bit longer. Ideally I would leash walk them until the area appears dry to look and touch to prevent them from rubbing it off, or getting dirt caked in the application spot. Thank you for using Petco Pet Education Center, formerly Petcoach.