Is Comfortis Safe for Dogs?

There is a lot of controversy surrounding the flea treatment Comfortis. What is Comfortis? What are the most common side effects? Is Comfortis killing dogs? You’re about to find out!

Comfortis Killed My Dog

“The very first time my dog was given Comfortis, he had an allergic reaction. He was very lethargic and drooled excessively. I thought that this was due to the stress of being in a new environment (I had just moved), so after a day or two, I gave him another dose. The second time I gave him Comfortis, he became very sick. He couldn’t hold his head up and shook uncontrollably. He had a very hard time breathing. This went on for about four hours until he finally died right in front of me.”

“A few months ago I took my dog to the vet to pick up his flea medication and he was given Comfortis. Not thinking that it was bad for him, I gave him his first dose, which he had no problems with. He was acting fine and everything seemed normal. After giving him his second dose of Comfortis, approximately 4 weeks later, he became very lethargic and then suffered seizures. My dog Riggs died 3 days later at the Animal Hospital. I am devastated by what has happened to Riggs and want pet owners to be aware of the dangers of this medication. Please do not give your pet Comfortis!”

Comfortis killed my dog?

Comfortis is a popular flea control option because it only needs to be administered monthly, but it has been associated with serious adverse reactions in some dogs.

Comfortis has been found to cause toxicity in dogs when given at doses 2.5 times what is recommended. The signs of toxicity include vomiting, depression, and incoordination.

Comfortis can also cause tremors and seizures in dogs at higher dosages. The manufacturer recommends seeking veterinary care immediately if your dog exhibits any of these symptoms after taking a dose of the medication.

Like any other drug, some dogs can have allergic reactions to Comfortis. These symptoms are generally mild but can be life-threatening if they are not taken care of right away.

If your dog experiences any of the following symptoms after taking this medication, call your veterinarian or take them to the emergency clinic immediately:

  • Itching and scratching
  • Difficulty breathing
  • Facial swelling
  • Seizures

The safe use of Comfortis in breeding, pregnant or lactating dogs has not been evaluated.

What are the side effects of Comfortis for dogs?

The following are some of the common side effects reported among Comfortis users:

  • Vomiting
  • Diarrhea
  • Seizures
  • Incoordination
  • Lethargy or hyperactivity
  • Allergic reactions such as hives and itching skin

If you believe your dog or cat is having an adverse reaction to Comfortis, you should contact your veterinarian immediately.

Can I get Comfortis without a vet?

No, you cannot purchase Comfortis without a prescription from your veterinarian. Comfortis is a prescription medication that is FDA-approved to kill fleas and prevent flea infestations on dogs, cats, puppies and kittens 14 weeks of age and older. It is the only oral treatment for fleas that starts killing within 30 minutes.

A few things to know about Comfortis:

Comfortis kills fleas before they can lay eggs and stops flea infestations before they start.

In addition to killing fleas, Comfortis also prevents future infestations by killing adult fleas before they can lay eggs. This is important because it helps reduce the number of existing eggs, larvae, and pupae in the environment that may already be present when starting a new treatment program.

Comfortis comes in a chewable tablet that your dog or cat will enjoy.

Some pets are difficult to treat with topical or spray-on products such as shampoos, sprays, and treatments. They may run away or rub themselves against furniture, causing the product to rub off. This can make it difficult for topical treatments to work effectively.

Comfortis does not require fasting prior to dosing or separation from other pets after dosing.

How long does it take for Comfortis to kick in?

Comfortis is a product that kills fleas, prevents further flea infestation, and controls the existing flea population within 30 days of its administration.

Since Comfortis is an oral tablet, it takes about 30 minutes to kill the fleas on your pet after its administration. However, it takes about 24 hours for the effects of Comfortis to completely kick in completely.

Before using Comfortis, talk to your veterinarian about any health issues your dog has or has had in the past. Comfortis may interact with other medications.

Comfortis reviews from dog owners

Comfortis reviews are overwhelmingly positive. At the time of this writing, it currently has a 4.5 star rating on Amazon with 125 reviews and a 4.6 star rating on 1800PetMeds with over 1200 reviews. Most pet owners are happy that the product works for their pets and kills fleas quickly.

One concern pet owners have with many flea treatments is how long they take to begin working. According to Comfortis reviews, you don’t have to wait long to see results. You usually see a difference in about 30 minutes or less after taking the first dose.

However, some pet owners have issues with administering Comfortis to their pets. Some dogs refuse to take it because of its taste and texture.

There were also some who experienced side effects like vomiting and diarrhea when given Comfortis for the first time. Others say that their dogs developed digestive problems after taking Comfortis for a long period of time.

Many complained about the price of Comfortis. They say that there are other flea control products that are cheaper but just as effective as Comfortis.

It’s important to note that Comfortis does not kill ticks. It is also not effective against tapeworms, heartworms, or ear mites.

“I recently purchased Comfortis for my 5-year-old Lab. I was skeptical at first and always wanted to be sure that whatever I used on my dog was safe. Comfortis not only works great, but it’s very safe and I see no negative side effects with my dog. My lab is very active and plays a lot outside with the other dogs in the neighborhood. I would definitely recommend this product to other dog owners.”

“I love this product and my dog does too. I have used this for about six years now, and she hasn’t had a flea problem since! We used to use a topical treatment, but that would only work for three weeks and didn’t always work. Comfortis works great, it lasts for a month and seems to kill them all in one day.”

Conclusion of Comfortis for dogs

When you’re looking for a flea treatment, there are lots of options. You can go with a topical treatment, or you can go with an oral medication. Comfortis is one of the few oral treatments available on the market.

If you’re looking for an easy way to give your dog flea treatment, Comfortis could be the solution for you. The pills are beef-flavored, so they’re easy to administer by mouth.

Comfortis is a very safe drug when used at the correct dose and in the correct weight range. It does not have any known interactions with other drugs, although there are some potential side effects that it might be worth checking for.

It is an excellent choice to help prevent fleas from making your dog’s life miserable. It also works extremely fast, so if you find that your pet already has fleas, it can quickly get rid of them.

As with all drugs, you should only use Comfortis after consulting with your veterinarian. If you are unsure whether Comfortis is the right medication for your dog, speak to your vet who can advise on alternative products.

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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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