We gave our cat comfortis, never again. She was really lethargic for 2 days and her fur was dull straight away and still is. She also has been acting weird since, I almost think it's affected her brain... It's been a week and she still has fleas...

Within 30 minutes of giving our cat half a Comfortis tablet she was running
round the house, unable to breath, her eyes were starring and she kept
falling over. We immediately rushed to the vets where they put her on a drip
and gave her steroids. Later that evening she was transferred to an animal
hospital and monitored overnight. It took 3 to 4 days to recover but she has
been left totally deaf. I cannot understand why this drug is on the market
and being sold by vets.

Ive been using this for 7yrs. Was previously know as panoramis. My dog never has fleas or worms. Never had side affects. Digests it well. It last longer than a month. I use it every 6-7 weeks.

I bought comfortess for my dogs.it has been several days now.they still have fleas.i have 3 skye terriers that weigh around 27 lbs. A mixed breed that weigh around the same. 2 salukis that weigh around 40 or cfc50 lbs at the most. I am not pleased.

Our two year old Border Collie had a seizure the day after taking his first and last oral flea product known as Comfortis...he remained epileptic for about 4 years and now hasnt had a seizure for nearly 2 years, we put him on a raw food diet with golden paste and he has had acupuncture...we believe this might have saved him.

Worked a treat on my dogs fleas, the fell right off him within the first hour after taking it. No side effects. My kelpie loves is and eats the chew right out of my hand (he isn't easy to trick with tablets normally either). Would recommend.

I have used this product for 5 years with my small dog... She is about 12 lbs. I have used once a month for over 5 years, I have her Vet check her blood work from year to year so I know she is in perfect health. I have never had any trouble with this medication and highly recommend it!

Okay have used this product several times works great.
Only issue the taste.
My cats and brothers dog hate it.
It's great for dogs as you can stuff it in some food and they will eat it.
Cats however won't touch it.
I have to get the Vet to stick it down their throats.
Works well but they seriously need to fix the taste.
That's the only issue.
As for the stories of sickness and death I have used this product a few times on my three cats and my my mum's dog all were fine never an issue.
My mate used it on his two dogs were fine so I'm not sure if the comments are legit or just trying to scare people.
Perhaps they like another brand won't to tarnish others not sure I've never had an issue nor the people who use it.

My cat absolutely hates this stuff. I have even given 1/2 tablet with food and within 10 minutes she vomits. I phoned the company and they said to give it another attempt the next month and if she reacted the same they would refund my money. Well I have received no reply to my message on their answering machine.

Gave my dog comfortis at 9 pm and by 2am extremely lethargic and her body was trembling.
She held her head upwards and kept it in that position also she stretched her paws in the air and held them there as if she was playing statues. After a couple of hours the trembling stopped and also the strangely held limbs.
Great for fleas but I won't risk it again.

Love this product.
My dog has a bad reaction to flea bites so this fast acting product is great. She has never taken the tablet without it being hiden in food and no noticable reactions after taking it.

Last year my cats and dog were rampant with fleas, despite using Frontline, Advocate and a range of natural products and household flea bombs. I finally tried Comfortis and have they have all been virtually scratch free ever since. None of my pets have had any adverse health reactions thankfully, something I was very worried about given the potential side effects, they'e all been fine (the smaller cat does seem a little more sleepy but this soon wears off).
The only downside is how difficult it is to get the tablets into the cats crushed up in their food, given that they leave their dinners, swap dinners, and finally the dog will finish off any scraps if unsupervised. So he's definitely gets a full dosage at least!

It has worked for the 24 to 28 days for my dog each time. Has had no problems, weighed it so I used the right type for my foxyx which is orange. If you don't weigh the dog or cat it can cause problems I was told my vet. Capstar, front line, ect all seem to have no effects on fleas or bad reactions to my dog. Use the instructions on the boxes for all animals as the recommendations are there for a purpose, is safety of your pet.

After reading some of these horror stories, I now understand why my dog refused Comfortis. This is the second season he had it and the first time it seemed to go reasonably well. This time he just would not swallow it and even responded badly to the smell. I finally coated tablet pieces liberally with peanut butter and he swallowed (with suspicion as the smell was still there) but he vomited it all out several minutes later.
I won't be using it on him again.

I cant recall the color of the packet as comfortis was new, we gave both our fox terriers comfortis. We came back home to find one of the dogs was having a seizure, we thought it was a snake bite, our other foxy was fine. It wasn't a snake bike it was the comfortis. I was just looking at the reviews and thought it pertinent to put my story on the review. I made inquiries with the company etc, with no response. I did search the internet and this is simply a poison, I know all flea treatments etc are, but this is dangerous, our dog suffered because of this product. I WILL NEVER TAKE THE RISK WITH THIS PRODUCT EVER AGAIN.