NexGard Allergies in Dogs

NexGard Allergies in Dogs - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost

Most common symptoms

Diarrhea / Poor Appetite / Vomiting

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Rated as serious conditon

25 Veterinary Answers

Most common symptoms

Diarrhea / Poor Appetite / Vomiting

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NexGard Allergies in Dogs - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost

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What are NexGard Allergies?

NexGard is a flea and tick protection system that comes in a chewable pill for dogs. This tasty and soft chew has been approved by the FDA and is considered safe for dogs. The active ingredient, afoxolaner, has been proven to effectively treat and control ticks and fleas for one month when given regularly. This item is from the makers of Frontline.

Although many dogs tolerate NexGard quite well, there are specific side effects that are listed on the label. When you are giving your dog this chewable tablet, it is essential to be familiar with the side effects that can occur. If your dog does have adverse effects to this medication, consult your veterinarian without delay.

Many flea and tick treatments do come with warnings about side effects; however, it is vital you give your dog some sort of flea and tick preventative to avoid Lyme disease and other conditions caused by flea and tick infestations. This is especially important if your dog goes outside on a regular basis and if you live in an environment where fleas and ticks are very common.

NexGard allergies in dogs occur when dogs have an allergic reaction to or suffer from side-effects of this popular flea and tick treatment. The active ingredient, afoxolaner, may not agree with all dogs that ingest this oral preventative.

Symptoms of NexGard Allergies in Dogs

Symptoms of an allergic reaction to NexGard will vary from dog to dog. Frequently diagnosed reactions to this flea and tick treatment include:

  • Dry and flaky skin
  • Loss of appetite
  • Vomiting
  • Diarrhea
  • Lack of energy 

Types

There are various types of active ingredients in flea and tick treatments which include:

  • Pyrethrins
  • Pyrethroids
  • Etofenprox
  • Fipronil
  • Methoprene
  • Methylcarbamate
  • Imidacloprid
  • Amitraz
  • Selamectin
  • Nitenpyram
  • Fluralaner
  • Sarolaner
  • Lotilaner

Causes of NexGard Allergies in Dogs

Causes of NexGard allergies in dogs are primarily due to the reaction from the active ingredient, afoxolaner. Specific causes include:

  • The hypersensitivity towards the main ingredient
  • An over-reactive immune system
  • Afoxolaner causing skin irritation to the sensitive skin of the dog

Diagnosis of NexGard Allergies in Dogs

If you have recently started giving your dog NexGard and they are showing signs of a reaction, it is crucial to stop giving them the preventative medication and contact your veterinarian. When you take your dog to the clinic, take the package of this flea and tick preventative treatment to help the veterinarian come to a diagnosis. The veterinarian will take a closer look at the ingredients, asking questions pertaining to when the symptoms began.

To avoid a differential diagnosis, the clinical team will perform various tests, such as blood work, urinalysis, and a biochemistry profile. Depending on your dog’s symptoms, your veterinarian may want to perform other assessments; however, this will depend on your dog's present condition.

If your dog has skin irritation, the medical professional will take a closer look to determine if a skin test is required to be sure the inflammation and soreness is a result of the NexGard. Your veterinarian may decide to wait before a costly test is conducted; once your dog stops taking the tablets, the symptoms may dissipate. It is important to understand that this may take more than one month since this flea and tick treatment is given once a month, and it may still be in their system for up to 30 days. Once your veterinarian suspects that your dog is allergic to the product, they will advise you to stop giving your companion the treatment and will recommend an alternative method to help prevent fleas and ticks.

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Treatment of NexGard Allergies in Dogs

Effective treatment of a NexGard allergy will be to stop administering this chewable pill to your dog. Unfortunately, there is no immediate clinical method to remove the drug from your pet's system but depending on your dog's condition, supportive treatment may be offered. Treatment methods that can help in the meantime are:

Topical Medications

Applying a topical medication to your dog’s skin, if the reaction caused a skin irritation, will ease the sensitivity and discomfort. Topical medications may help your dog stop itching and licking the skin.

Alternate Preventatives

Finding an alternate preventative for your dog’s flea and tick treatment is essential. You may want to research other alternatives, including holistic types, to keep your dog free of these parasites. Do not try to treat the fleas and ticks without consulting your vet in case your dog has a sensitivity to other products. Your medical professional can also suggest specific flea and tick treatments.

Recovery of NexGard Allergies in Dogs

If your dog is often outdoors it will be important to find protection against infestations that works for them, yet does not include such harsh ingredients. Protecting your pet from fleas and ticks prevents more serious conditions from occurring, such as Lyme disease and other illnesses.

Once you find an alternative that works for your dog, it may take them some time to adjust. Monitor your dog’s skin and coat for infestations to be sure the new preventative is working properly.

If your dog develops symptoms of allergies after you have removed the Nexgard chewable from their diet, contact your veterinarian. Your veterinarian may then decide to do further allergy testing to identify the ingredient they are allergic to.

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NexGard Allergies Average Cost

From 407 quotes ranging from $200 - $800

Average Cost

$400

NexGard Allergies Questions and Advice from Veterinary Professionals

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Bruno

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Dachshund

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14 Years

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Serious condition

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0 found helpful

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Serious condition

Has Symptoms

Seizures & Loss Of Use Of Back Legs

My dachshund is 14. I started giving him NexGard about 6 months ago and continued monthly. During that time he started have seizure episodes. It didnt occur to me that it was from the Nexgard. I thought it was due to him being old. I finally took him to the vet, and the vet told me that it his symptoms were probably due to the nexgard. I have stopped giving it to him and its been a little over a month. He is still having seizures and loss of use of his back legs. The loss of back leg use started only about a month ago. What i would like to know is if my dog will recover and stop having the seizures or if the damage is permanent.

Aug. 2, 2018

Bruno's Owner


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Dr. Michele K. DVM

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1611 Recommendations

I haven't heard of that reaction from Nexgard, and I'm not sure that those two things are related. Dachshunds are prone to back problems that can cause hind end weakness and paralysis, and that may also not be related to the seizures. If he isn't using his back legs, he needs to see your veterinarian right away. If he is still having seizures, he may need medication to control those. I hope that all goes well with Bruno.

Aug. 2, 2018

Thanks for the reply but my question wasnt answered. Regardless of the back legs, will my dog recover from the seizures caused by the nexgard now that he is off of it?

Aug. 2, 2018

Bruno's Owner

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teddy

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Pomeranian

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12 Months

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Moderate condition

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0 found helpful

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Moderate condition

Has Symptoms

Nothing

i have the nexgard treatment should i give him i heard that this treatment sometimes be dangerous i dont know if i should give him it and does the poms have some type of allergics to this product? thanks...

June 13, 2018

teddy's Owner

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Dr. Michele K. DVM

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1611 Recommendations

Nexgard is a very commonly used, safe product to prevent flea and tick infestations. Most dogs, including Pomeranians, tolerate it quite well. Since I don't know anything about Teddy's health status, if you aren't sure if you should use this product, it would be a good idea to call your veterinarian and make sure that it is okay for him to take.

June 14, 2018

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Tarfu and Makeda

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Kuvasz

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5 Years

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Serious condition

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0 found helpful

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Serious condition

Has Symptoms

Diarrhea

We gave our first dose of NexGard to our two Kuvasz 15 days ago. Coincidentally, since then they have both have been dealing with diarrhea and are now assuming they are related. We have another dog that didn’t get NexGard and does not have diarrhea. We have tried boiled chicken and rice, elimination of all treats, Imodium and Flagyl. The male pup seams to be improving with mostly firmed stool now. The female now has half of the stool semi formed followed by all liquid still. If this is from the NexGard, how long can we expect this to continue and is there anything else we can try? Anne

May 18, 2018

Tarfu and Makeda's Owner

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Dr. Michele K. DVM

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1611 Recommendations

Every dog is an individual, and they will respond to the treatment for their diarrhea differently. 15 days is a long time to have diarrhea, and you are giving all medications that should help, including the bland diet . If they haven't been seen for a recheck with your veterinarian, that may be a good idea if things aren't continuing to improve. You do seem to be doing everything that you should for an intestinal upset. I hope that they both continue to improve.

May 18, 2018

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Ruby

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Yorkie/Shih Tzu

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8 Years

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Moderate condition

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0 found helpful

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Moderate condition

Has Symptoms

Lethargy

I gave my 5-lb Yorkie/Shih Tzu mix Nexgard yesterday and she has been very lethargic since then. She is not experiencing any other symptoms, but this is not normal behavior for her. My concern is that she is due for a dental procedure tomorrow under anesthesia. The vet said to call in the morning if she is still symptomatic. Should I just re-schedule the appointment to prevent further complications?

April 3, 2018

Ruby's Owner

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Dr. Michele K. DVM

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1611 Recommendations

Whether or not the lethargy that Ruby is showing is due to the Nexgard dosage, it would be a good idea to postpone her dental cleaning until she is back to normal, unless it is an emergency procedure. Anesthesia is best when performed at ideal health, and if she isn't 100%, there is no harm in waiting and making sure that she is okay.

April 3, 2018

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Mina

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German Shepherd

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11 Months

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Moderate condition

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3 found helpful

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Moderate condition

Has Symptoms

Itching
Skin Lump
Sensitive Skin
Itching,
Sensitive Stomach

After trying to figure out the cause of my dog's symptoms (excessive itching to the point of thinning hair in certain areas of her body, nodules on her skin, sensitive stomach) through trial and error or removing treats, changing her diet, I'm now wondering if she in fact is just not tolerating NexGard. She is just under 11 months old, and has been on it her entire life as appropriate to dispense, so it's impossible to pinpoint that "yes, these symptoms started when she started on NexGard", but they certainly weren't there before she started on NexGard.

March 4, 2018

Mina's Owner


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Dr. Michele K. DVM

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1611 Recommendations

Thank you for your email. Without examining Mina, I can't pinpoint what might be the problem with her health, but reactions to Nexgard other than occasional vomiting are quite uncommon. If she hasn't been examined by a veterinarian or had any treatment for her conditions, it might be a good idea to seek the advice of a veterinarian, as they can see her, examine her, recommend any testing or treatments that may be necessary, and determine if what is going on with her is actually a reaction to something in her diet.

March 4, 2018

Our Lucy after taking Nexguard for a few months was standing in the living room and fell over like those fainting goats and lost control of her bowels. She had never had a seizure before or any health issues. We took her to the vet and her hemoglobin was 7.6 (12-16 is normal). We didn’t do a bunch more expensive tests but the only difference in her routine was the Nexguard. We are contacting our vet, the FDA and the manufacturer. We are supplementing her iron. No more Nexguard for our dogs. We bought several months supply. I hope we can our money back. We spent $400 on the vet.

Sept. 23, 2018

Randy B.


A few hours after I gave my dog nextgard he had his first seizure and now has them a few times a week. What can I do? The vet that recommended nextgard refuses to believe that nextgard caused it since he and others that work with them use nextgard on their animals. We have taken him to Dr after first seizure and they focused on his congestive heart failure which was being and has been managed through meds for the last two years. My husband will take to vet tomorrow and demand bloodwork done for liver kidney and toxins. Plz do not use any oral flea meds. Just be patient and use topical and baths. I can see our dog isn't going to be with us much longer since nextgard was given.

Sept. 9, 2018

Shelly


My dog Rubyjean is getting lumps on her leg and now she is peeing on herself she can’t control it I think it’s from this nexgard .. 2 years ago my old dog became ill and started seizures I had to put her down because she also lost control and started peeing on herself I truly believe it’s from this pill nexgard you should not sell this stuff to any dogs who are over 5 years of age older dogs can’t take it I’ve lost my best friend and now my other dog Rubyjean looks like I May lose her to I’m heartbroken is there anything I can do to reverse treys affect

Aug. 24, 2018

Nancy S.

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Brooklyn

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Staffordshire Terrier

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5 Years

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Moderate condition

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0 found helpful

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Moderate condition

Has Symptoms

Vomiting Diareha
Vomiting , Diarrhea Very Ti
Vomiting , Diarrhea Lethargic

Can a dog have reactions even though they taken it in the past . I gave her a dose yesterday and vomited . Woke up this morning she vomited in the bed and carpet . She’s just laying on the floor . I’m worried about her .

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Zino and Sasha

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pitbull

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18 Months

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Moderate condition

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0 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Moderate condition

Has Symptoms

Weight Loss
Jaw Chomping
Hair Loss
Drooling
Skin Lump
Jaw Clenched

you fuckers... I have had my two APBT's go through months of allergic reactions.. and thousands of rands in new foods, vet bills,sleepless nights for months to get to an understanding of why they have been losing hair and skin bumps (impedigo), as well as lack of energy and weight loss as well as drooling and clentched jaws when sleeping and the only constant I have not changed is the administering of nexgaurd.. its day 18 of the month and cant wait to get them clear of that so called medication.. I am going to take this further and make as many people aware of the terrible substance that you are marketing to people that trust ..your company is going to be shut down for this --frontline.. you will and must be paying already for this in the heavens..God will ensure everyone get their dues.. that I promise.

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Zoe

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Aussie x Blue Heeler

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11 Years

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Fair condition

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0 found helpful

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Fair condition

Has Symptoms

Question: My female/spayed Aussie x Blue Heeler , 11years 4months old has been on Nexgard for 7-8 years. Recent Blood Chem revealed Liver enzymes 3x Normal. Any cases indicating Nexgard could contribute to liver damage?

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Jax

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flat coat retriever

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4 Years

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Serious condition

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0 found helpful

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Serious condition

Has Symptoms

Seizure

Jax has been on Nexguard for 6 months. He was given his last dose 2 weeks ago. Yesturday Morning he had a grand mal seizure, which started out by waking up Suddenly sounding like gagging & going to puke. I put him outside & moments later he has a seizure. My question is can Nexguard given 2 weeks prior still cause a seizure? No advance signs, nothing in his bloodlines. Healthy dog. Has had Anaplasmosis 2 years ago. I hope you can help with my questions.

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Snowy

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Border Collie

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7 Years

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Critical condition

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0 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical condition

Has Symptoms

Our dog (a 7 1/2 year old Border Collie) died on 28 October 2019 of acute renal (kidney) failure. Despite intensive care at the best specialist vet hospital in Sydney, New South Wales, she could not overcome whatever attacked her system. It could not be conclusively determined if it was an infection, or as the result of the introduction of a toxin, which on its own might have triggered the condition or made her more susceptible to infection. The only change in her feeding or care was the introduction of NexGard Spectra on 14 October 2019. This was the first time she had tried the product. She was in perfect health at that time. On 20 October 2019 she started vomiting. After no change in her condition she was taken to our local vet and a blood test showed severely elevated creatanine levels. After a night's care at the local vet's, including a intravenous drip, they referred her to the specialist hospital for intensive care. Her condition continued to deteriorate, her creatanine levels skyrocketed to 12 times normal, and eventually it was determined there was nothing more that could be done. She was only 7 1/2 years old and had been in excellent health. Maybe NexGard Spectra is not at fault, but as the sole differing factor in her care, it is suspicious to say the least. I would not recommend this product to anyone who loves their dog.

NexGard Allergies Average Cost

From 407 quotes ranging from $200 - $800

Average Cost

$400

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