Our dog Claude is given a spot-on flea treatment every 4 weeks. We much prefer the spot-on liquid to flea pills as he always gags when he takes a tablet. However, in recent months we’ve been thinking about changing to an oral treatment, as our dog has been acting weird after his flea medicine. As soon as we apply the flea treatment, he goes absolutely crazy! It’s funny, but still very weird.
I wanted to try to understand why our dog acts all weird after his flea treatment, so spoke to a vet I know, plus some other dog owners to get some differing opinions.
I’ve also done some online research into it all – I hope you find it useful as there is even the possibility of an allergic reaction or poisoning. You can read more about the toxicity lower down the guide.
Diagnosis of K9 Advantix Allergies in Dogs
If you suspect your dog is having an allergic reaction to K9 Advantix or K9 Advantix II, it is important to make an appointment with your veterinarian. Once you take your dog to the veterinarian, the medical professional will assess your dog’s symptoms. Your dog may show a variety of symptoms, and the severity may vary depending on the allergic reaction of your companion.
The veterinarian will ask you questions pertaining to everything “new” you have introduced into your dog’s life. He may ask you about various foods, allergens within the home, or anything that you have recently applied to your dog. With those questions, you may come to the conclusion that you recently applied the flea and tick treatment.
Why dogs feel weird after flea medicine
Most dogs wont feel weird after being given flea medication. It is generally very safe and recommended by veterinarians with very few exceptions. However, there are times when a mistake may be made or a problem experienced when administering the pipette:
We should, however, be clear on what is weird behavior for the dog. Our article on weird things dogs do will help you work out what is related to flea medicine and what is simply common strange canine behavior,
Our dog acts weird after his flea treatment
So, firstly, when I say acting weird after his flea medicine, what do I mean by that?
As a dog owner you will already know how the spot-on flea medicine is administered; With smaller dogs your part their fur at the top of the shoulder blade and squeeze the liquid from the tube. With larger dogs, you spot the treatment on in four places from their shoulders to the base of their tail.
And this is the point at which our dog Claude will start acting all weird.
We use Bayer Advantage (you can see the package in the photo below). As soon as the flea treatment medicine touches his skin, he goes crazy weird.
The first thing he does is shake. I completely get that one, as he wants to get the spot-on liquid off his fur.
He will then start slinking on the ground before running at full pelt through the dog flap in our back door. He gets outdoors and run around in circles before rolling on the ground.
Having spoken to other dog owners, he is a small list of weird things they say their dogs do after being given a flea treatment:
Why does my dog act weird after flea treatment?
How long do Advantix side effects last?
Remove as much medication as possible, but avoid scrubbing too hard over the application site or other areas of irritation. Symptoms will generally clear up in a day or two without further treatment.
Can K9 Advantix make my dog sick?
How long does flea medicine toxicity last?