Can Flee And Tick Medication Make My Dog Aggressive?

by | Last updated on January 24, 2024

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An Australian study, conducted on behalf of the Australian Pesticides and Veterinary Medicines Authority, reports about dogs treated with fipronil: “Neurological clinical signs included ataxia, lethargy and

two instances of biting or aggression

. Gastrointestinal signs included vomiting and diarrhea.”

Can NexGard cause aggression in dogs?

When he was a wee pup, the vet treated him with NexGard.

Quickly, the dog became aggressive and a biter

. I discontinued the NexGard after reading about side effects online, and my dog became less aggressive. Then this summer, the vet recommended Frontline Gold.

What are the side effects of flea treatment for dogs?

  • Skin effects. Irritation. Redness.
  • Stomach or intestinal problems. Vomiting. Diarrhea.
  • Nervous system effects. Trembling. Depressed appearance. Seizures.

How long does flea medicine toxicity last in dogs?

Mild cases of flea medication overdose are often self-limiting, with symptoms gradually wearing off over a period of

24 to 72 hours

.

Can a dog be allergic to flea and tick medicine?


Some dogs are sensitive to such topical medications and can develop allergies to these products

. Another form of flea treatment is an ingestible pill. If you give your dog one of these treatments and then he develops allergy-like symptoms or begins to act abnormally in any way, contact your veterinarian.

Can fleas make your dog act crazy?

Not all symptoms of on dogs are physical—a flea infestation can make dogs act differently, too.

Sometimes dogs can be cranky, restless or just plain acting odd

, Grimmett says.

Does flea treatment irritate dogs?

Treatment with a fast-acting topical flea and tick medication on a pet

can cause itching or brief irritation at the application site

, as the product does its job and kills pests. As the animal reacts to this irritation, it can begin to fidget and scratch.

What flea medicine is killing dogs?

What is the safest flea and tick prevention for dogs?

If chemical products are necessary for additional flea or tick control, NRDC recommends

s-methoprene or pyriproxyfen

, which are less toxic ingredients—but read the labels carefully because some products use them with other, more harmful pesticides.

Can Frontline cause aggression?

In tests with laboratory animals,

fipronil caused aggressive behavior

, damaged kidneys, and ‘drastic alterations in thyroid function. ‘ The fipronil-containing product Frontline caused changes in the levels of sex hormones.

Can fleas make my dog aggressive?


Fleas can also cause your pet to behave differently

— your cat or dog might seem very skittish and jumpy in response to bites and discomfort. And, you might notice your pet avoiding certain previously comfortable spots in the house, which might be associated with fleas and mites.

What are the side effects of NexGard?

Since the release of NexGard, adverse events that have been reported for dogs are listed here in decreasing order of reporting frequency: Vomiting, pruritus, lethargy, diarrhea (with and without blood), anorexia, seizure, hyperactivity/ restlessness, panting, erythema, ataxia, dermatitis (including rash, papules), …

Can you overdose on flea treatment?


An overdose for most flea preventions could result in the following: Profuse drooling

.

Vomiting

.

Tremoring

.

What are the side effects of Advantage flea medication?

Ingestion of this product by dogs may cause serious adverse reactions including

depression, salivation, dilated pupils, incoordination, panting, and generalized muscle tremors

.

Can dogs have allergic reactions to Frontline?

Allergic reactions and sensitivity


Some pets are allergic to fipronil

, one of the active ingredients in Frontline Plus. If you notice any adverse reactions after applying, consult your vet before applying the next dose.

Can topical flea meds cause seizures?

FDA Warning About Flea & Tick Treatments

The affected products have been associated with neurologic adverse reactions including muscle tremors, ataxia (the loss of full control of bodily movements), and

seizures in some dogs and cats

, the FDA reports.

How long do Advantix side effects last?

Treatment of Advantix Allergies in Dogs

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.

How long do Frontline side effects last?

These effects should all subside

within 24 hours

of applying Frontline Plus; if they persist then you should contact your veterinarian.

Do fleas stress dogs out?

As the weather heats up, flea and tick populations are expected to boom, but experts are warning untreated bites can not only cause physical problems but also lead to depression and chronic stress in our pets.

Can fleas cause anxiety in dogs?

There are a few other signs you should be on the lookout for if you think your dog has fleas: Excessive Licking. Head Shaking.

Anxiety or Nervousness

.

Can fleas cause neurological disorders in dogs?

The FDA is warning pet owners and vets that

certain flea and tick medications have the potential to cause stumbling, seizures and other neurological effects in cats and dogs

.

Why do dogs scratch after flea treatment?


It's fairly typical after you've applied Itch Flea for there to be a period of hyperactivity amongst the fleas as the product takes effect

, and this can cause an increase in itching. It should settle down though after 24 hours.

How long do revolution side effects last?

After Revolution manage to get into the bloodstream, some cats experience slightly elevated heartbeats as their body attempt to respond to the solution presented. As time passes by, your pet gets more and more anxious which makes hyperactivity inevitable. Things should go back to normal after

30 – 45 minutes

or so.

Does spot on flea treatment have side effects?

Monitor your pet for side effects after applying the product, particularly when using the product on your pet for the first time. Call your veterinarian if your pet shows symptoms of illness after using a product. Symptoms of poisoning include

poor appetite, depression, vomiting, diarrhea, or excessive salivation

.

Are tick pills safe for dogs?

“The FDA carefully reviewed studies and other data on Bravecto, Credelio, Nexgard and Simparica prior to approval, and

these products continue to be safe and effective for the majority of animals

,” the agency said.

Should I give my dog flea and tick medicine?

“Ticks and mosquitoes are dangerous to the health of people as well as pets,” says Dr. Jill Lopez, a veterinarian with Merck Animal Health. “For that reason,

flea and tick protection is essential for all dogs and cats that live with you

.”

What flea and tick medicine is causing seizures?

Health officials are alerting pet owners and veterinarians that certain flea and tick treatments might put dogs and cats at an increased risk of neurologic issues, including seizures. The U.S. Food and Drug Administration says the drugs are in the isoxazoline class and include

Bravecto, Credelio, Nexgard and Simparica

.

Diane Mitchell
Author
Diane Mitchell
Diane Mitchell is an animal lover and trainer with over 15 years of experience working with a variety of animals, including dogs, cats, birds, and horses. She has worked with leading animal welfare organizations. Diane is passionate about promoting responsible pet ownership and educating pet owners on the best practices for training and caring for their furry friends.