Comfortis Killed My Dog?

When I searched online ”Comfortis killed my dog”, I found this following heart-breaking story in a dog forum.

I was very excited to try Comfortis for my dog. I had heard great things about it and was anxious to see the results. Unfortunately, after just a few days of taking Comfortis, my dog became very ill. She began vomiting and had diarrhea. I took her to the vet and they told me that she was dehydrated and needed IV fluids. They also said that Comfortis can be toxic to dogs and can cause liver damage. My dog died just a few days after starting Comfortis. I am heartbroken and want to warn other pet owners about the dangers of this drug”.

This is truly a sad story. But can Comfortis kill a dog? We will answer this question along with other things related to Comfortis flea treatment and dog. Let’s start with the most important question:

Can Comfortis Kill Dogs?

No, Comfortis (spinosad) cannot kill dogs. It is a safe and effective oral treatment for fleas on dogs and puppies 14 weeks of age and older and 5.0 pounds of body weight or greater. When used as directed, it quickly eliminates fleas within 30 minutes and prevents future infestations for a full month.

In rare cases, some dogs may experience side effects such as vomiting or diarrhea, but these are typically mild and resolve on their own. If you have any concerns about using Comfortis on your dog, please consult with your veterinarian.

Can Comfortis Make Dogs Sick?

There is a possibility that Comfortis (spinosad) could make your dog sick. The most common side effects reported in clinical trials were vomiting and diarrhea, but these were generally mild and not long lasting. Some dogs may be more sensitive to the active ingredient spinosad and experience more severe reactions like lethargy, drooling, shaking, seizures or even death.

If you notice any of these signs after giving your dog Comfortis, stop giving the medication and contact your veterinarian immediately.

What is the Safest Flea Medication for Dogs?

There are a few different flea medications that are considered safe for dogs. The most common and effective type is topical, which is applied directly to the dog’s skin. There are also oral medications, which are taken by the dog either in pill form or as a spot-on treatment.

Both types of medication work by killing adult fleas and preventing eggs from hatching. Some products also contain ingredients that help to repel fleas and ticks. Topical treatments are typically considered the safest option for dogs, since they have less chance of being ingested or inhaled.

Oral medications can be more effective at killing fleas, but they come with a higher risk of side effects such as vomiting and diarrhea. Spot-on treatments are somewhere in between, offering moderate effectiveness with a low risk of side effects. Whichever type of medication you choose, be sure to follow the directions carefully and only use products that are specifically designed for dogs – never use human flea medications on pets!

Does Comfortis Cause Seizures in Dogs?

There is no definitive answer to this question as it depends on the individual dog. Some dogs may experience seizures after taking Comfortis, while others may not. If your dog does have a seizure after taking Comfortis, it is important to seek veterinary care immediately.

Is Comfortis Safe for Dogs?

Comfortis is a monthly chewable tablet that provides safe, effective flea control for dogs and puppies 14 weeks of age and older. Comfortis kills adult fleas and prevents eggs from hatching for 30 days. It is fast-acting, starts to kill fleas within 30 minutes, and makes a great addition to your dog’s regular preventive care routine.

But is Comfortis really safe for dogs? Let’s look at the active ingredient in Comfortis, spinosad, to see if there are any safety concerns. Spinosad is derived from a naturally occurring soil bacterium and has been extensively tested in dogs.

The most common side effects reported are vomiting and diarrhea, which are usually mild and go away on their own. In very rare cases, more serious side effects have been reported such as seizures or muscle tremors. However, these have only been seen in dogs with pre-existing conditions such as epilepsy or who are taking other medications that lower the seizure threshold.

Overall, Comfortis is considered safe for healthy dogs 14 weeks of age or older. If you’re concerned about using chemical products on your dog, there are some natural alternatives to Comfortis that you can try. These include essential oils such as lavender oil or lemon oil, which can help repel fleas when used topically on your dog’s coat.

Find Out Whether Other Things That Can Kill Your Dog


If you’re looking for a safe and effective flea treatment for your dog, look no further than Comfortis! This monthly oral medication is FDA-approved and kills fleas quickly, preventing them from biting your pet and causing irritation. Plus, it’s easy to give – simply mix the contents of the capsule with your dog’s food and they’ll be protected against fleas all month long.

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