Comfortis Tablets

Avoid at all costs – 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.

The only treatment that has worked! – We have 3 cats and a 15 year old Golden Rereiver, all of which had horrible fleas over the summer. No matter what we did they wouldn't leave our pets alone. We tried Revolution, Advantage, baths, dusts, the lot! And nothing! Finally our vet recommended Comfortis. Yes, it is expensive! We could have gone out for a nice meal instead.. Ha! But I never imagined these results. Within 30 mins the fleas started dropping off. Our pets were all agitated! Scratching and Running around, as I imagine the fleas were uncomfortably dying!

Over the course of the evening the cats all settled and slept on our bed with us. Which is unusual.. But I guess they were feeling a little strange and needed comforting. Our sheets became a crime scene in the morning. Dead fleas all over! The best thing to wake up to. Honestly!!

Comfortis cleared up our dog and 3 cats within a day. Following treatments were just as effective! So far 3 months clear.. Very happy!

Killed my cat – My cat started having seizures and eventually killed him at 2yrs old. I didn't realise until after and heard something about it and started researching and completing shocked how they can even sell this product. Show details

Killed my cat. DO NOT USE – I gave a small amount of one of the pills to my cat, which was well under the weight limit. By later that day he had stopped eating. We went to the vet and they thought it was simply constipation caused by dehydration from the fleas. Went home with an oral laxative. Later that week he was dead with signs of liver and kidney failure. Spinosad, the… Read more

active ingredient (which is a pesticide) should not be ingested by humans or animals. It kills the fleas because it is poison. Do NOT give this to your animals you are essentially poisoning them.

I wish I could rate it negative 5 – Within hours my old cat was given 1/2 tablet, he was not able to move - experienced symptoms of ataxia. We took him to our vet and numerous tests were done but all came negative. He was put on steroids and initially improved but never fully recovered and died within a few months. Had I known what I have learnt since, I would have never given… Read more

Comfortis to him of course. I would have not taken him to the vet either and instead I should have applied chemical detox drops about which I only found out when it was too late.

A Game Changer – I read a lot of reviews and researched this product for hours. I was worried about the side effects and the horror stories of people losing their pets after taking a single dose. I have two Siamese cats, one is two years old, agile, powerful and weighing in at 12 lbs., the other guy is 9 months and easer to control, he weighs 7 pounds. The little… Read more

guy contacted fleas at the vet during his neutering and eventually I had a full infestation in my house. I tried a number of products, advantage drops, flea collars, Adams cat flea spray, Raid Carpet/Upholstery spray, Ortho Flea indoor home spray. I bombed my house and used other products including home remedies. I watched a couple of videos on how to give your cat a pill and it took me about 20 seconds to administer, even the big guy made it easy for me. There were absolutely no side effects, I guess I got lucky. I flea combed both cats 4 hours later and found several dead fleas under their fur and a few in plane sight. I found throughout the next several days one or two dead fleas on the cats and the areas where they hang out and sleep. I found no living fleas and eventually no dead fleas in my house. I continued to treat the house emphasizing on getting rid of flea eggs and the other stages of the flea cycle. The bottom line is that for my cats this product worked as advertised and my cats handled the drug well. I won the war!

DO NOT USE EVER – My 1 year old 24lb cat and my 8 month old 10lb kitten both were administered one tablet each by my husband and I, my oldest immediately started to swell up in his whole face. It was swollen by day 2 like he had been stung by a bee and had an allergic reaction about the size of a cantelope. Considering his weight should have been double the dose I… Read more

gave him according to the package I am glad I wanted to try one for now & see if it works fine and I'm sure if I would have givin the correct dose he wouldn't be alive. Less then a week later his neck looked like he had been attacked by a huge dog (he hadn't been attacked by anything) it had spread from his face down to his torso. It was a 6in by 3in bloody & raw, deep gash. As he couldnt stop scratching it , the fleas would have been way less of a problem from the beginning to have dealt with myself. Now a month later along with a lot of bandaging and benedril to not only stop his itching but to sedate him in order to keep him from injuring his self even more, he finally had his hair grown back and I just now thought to read reviews before trying one more time but NEVER will I EVER give them this lethal and obviously dangerous "medication" again. I will bathe them everyday and use a flea comb likeni initially did with my husband taking turns every night if that means I can keep them from going though the horrific nightmare we have all gone through these past 4 weeks ever again. And yes little man was perfectly fine but just because it wasn't showing on his skin I'm well aware of the damage it could have done to his insides and I dont care if it did nothing this one time after seeing these horrendous reviews and the hours I've spent keeping kitty Cobain (the older cat) basically wrapped up like it's winter with literal baby clothes to keep his bandages on in this florida heat I'm sure over a long period of time something horrible would have happened to Mink too. Please find other means of insecticides to relieve your pets itching this will only make your problems escalate far beyond necisary in order to keep flealess pets.

Flea free finally! – My three cats and my house had a heavy flea infestation after the recent weird Melbourne weather, they exploded everywhere, gross! We'd been using revolution and I've always found it hard to spot-dose correctly so the poor cats were probably missing out. They were stressed and sick with flea problems 10 days after their last revolution dose. I… Read more ·  1

asked the vet and used Comfortis. I made sure they had a full meal with the tablet crushed in it and they chowed it down. After about an hour a 3 hour long, 3 cat grooming frenzy beganbaa the fleas started dying, but there was no vomiting or any other distress shown by the cats. The next day I flea bombed the house too using a Raid bomb and washed all their bedding, and mine! I noticed that evening that where the cats had been sleeping stayed clean, no flea dirt scratched out, just a few dead fleas. Three days later the cats are flea free, relaxed as only cats can be, shiny coats and appetites are back. It's been truly great and being aware we've had that infestation I'm keeping an eye out because I know sometimes it takes a a few cycles to really break the flea cycles but so far the house is clear of them and so are the cats. Just for reference the cats weigh 2.8kg, 3.3kg and 3.8kg respectively and they each had a full tablet.

Believer! – My dog and 3 cats (and my apartment) were infested with fleas. This even though I had been using the spot treatment once a month. I made an appointment with exterminator and the night before he came I gave all 4 animals Comfortis. The difference was amazing! My part Siamese cat had developed sores from scratching - she is completely healed. It wasn’t fun giving the cats the pills but it was well worth it! Show details

Product is brilliant – 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. Show details

The only thing that works! – I bought one 6 pack for my dog and 2 cats. There was a sale on and I got the product for $70 which I thought was well priced. I have used Frontline and Advantage in the past, and over the last 3 months have noticed an increase in fleas despite frequent spot on treatments. I was nervous to use Comfortis because of some reviews, but I am so glad I… Read more

did. My dog ate the tablet without hesitation and then ate a big bowl of dry food and mince, my cats wouldn't eat it without being mixed with food. I noticed fleas dying within half and hour. Within an hour all three animals were fine. After 2 hours I would say all of the fleas on my dog were dead or dying. She was fine and still playful with her tail wagging. The cats began itching like crazy after around 3 hours. I think the fleas were biting more as they were dying. They were locked in the bathroom and though I didn't notice as many dead fleas on them, I think they were cleaning them off. Once treated I washed the pets, flea bombed my entire house and hot washed and dried every soft fabric. Pets are fine, fleas are gone. I am a total convert and love this product. It really works like magic.

Caused neurological issues in kitty – I have two animals, both received their treatment on the same day. One had no issues the other began falling, unable to hold himself up, his back end seemed to have partial paralysis. He continues to have trouble walking, he shakes, his head "wobbles". He doesn't appear to be in pain but after thousands of dollars at the vet, x-rays, blood work, etc The only thing that changed was Comfortis. I do not recommend this product. Show details

Wouldn't buy again – Followed instruction and gave with meal. Have two kittens, who don't go outside. This treatment didn't have any effect on fleas. They are still scratching, will try someting else next time Show details

Killed my cat not the fleas – This is a highly poisonous product, was given by the vet to use on both of my cats, one of which vomited immediately, the other was unable to breathe 3 hours later and passed away. Now one is left without his friend forever. Show details

Killed fleas and my cat – We’ve given our 11y/o cat Comfortis two times in years past. Last night we gave him a dose. He went from healthy, happy and normal to dead in 8 hours. Show details

DO NOT USE THIS PRODUCT – Gave Comfortis to my darling girl and within a few hours she passed away. Just wish I had read these reviews beforehand. I will regret this for the rest of my life. How can such a toxic product be in the market?  Show details

Makes cats sick – Makes cats sick. They vomit every time. Sometimes within an hour, sometimes later. But every time. Cats hate it. They do not chew it like a snack. Not worth high cost. Ineffective. Company is indifferent to concerns. Took a lot of information, but refuses to do anything. Thus, wasting my time as well. Show details

KILLED MY BELOVED CAT!! – Just three days ago, I gave my cat the second round of this medication, exactly a month to the date. 4 hours later she is contorting on the floor, unable to breath and died within minutes in the car on the way to the emergency vet. I am heartbroken and distraught. Our family has been torn apart by this 100% preventable tragedy. Please, trust the… Read more

reviews and do not buy this product. Do not risk their lives. I will forever regret and hate myself for making her take something I thought was going to help but instead ended her life.

DO NOT USE - KILLS ANIMALS – Gave to our cat last Friday and within 4 hours he was dead. Cat was playful had nothing wrong with him, and gave him comfortis and he was dead ! Not first time using this product. Had 3 cats die within 3 months of each other Show details

Too poisonous for my cat – 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... Show details

Thought our dog was going to die!! – About 4 hrs after giving our dog a dose he became lethargic and the third eye was coming down on his eyes. He could only walk slowly and just stared into space! Luckily after a few hours he has improved but we were extremely worried and had no doubt that this product caused this! Show details

NEVER EVER USE THIS PRODUCT – my dog had wobbles and was paralyzed day after taking this, with a 60kg dog this was product that killed him, he could never walk again, don't risk using it, use any other product, this should be removed from all shops. Show details

No star if I could – Can't coordinate his limbs and walking is like he is drunk all in less than 12 hours for the dose which was administered in accordance with the instructions. DO NOT USE Show details

Still has Fleas – Have used this product for over a year and my dog is still affected by fleas. Have taken him to the vet and they also recommended this brand but it doesn't seem to be working. Show details

Caused loss of muscle control in cat – My cat was given this at the vet after Frontline had become ineffective. Later that evening she was unable to walk or stand, falling over on one side, with tremors of her whole body. After taking her to an emergency vet and returning home, she was not able to walk or stand without falling over until the following day, and slept for the entire… Read more

next day. It took her a few days to recover. One of the vets had seen a similar reaction before. I would not recommend this product - a chemical that can produce these sort of neurological side effects is dangerous.

Product works but not for my kitty – This product works to eradicate fleas and my cat Loves the smell of the product but on a full tummy, he wants water immediately after consuming it and vomits 24 hours after administering the tablet and will do so for 3 days straight and be very ginger and sooky. He suffers from feline paresthesia and during these days it is more pronounced like… Read more

the Comfortis affects his central nervous system. I won’t administer again. It’s one of the only products on the market that works for him but makes him so ill. I can’t touch him during this phase because his nerves are hypersensitive and he bites unless I am super super gentle.

Killed My Sweet Cat – As today marks a year since my cat passed away from this drug, I reccomend NOT ever using this. This drug caused my cat to become lethargic for days, then he began to lose movement. It caused permanent nerve damage, eventually resulting in paralysis and death. This was after the 3rd use. He bounced back the first two times. Read reviews and do not use this medication!!! Show details

DANGEROUS PRODUCT!!! DONT GIVE THIS TO YOUR DOGS! – Gave my 30kg Rottweiler the Comfortis plus brown with her dinner. The next morning she wasn’t herself her nature was that of a HEAVILY SEDATED DOG! Rushed her to the vet.... extremely bad reaction to this oral treatment. While she was sick I researched and saw all these reviews! I am so so so thankful that my girl pulled through her blood tests… Read more

where great and I’ve dropped in her urine sample this morning. Will be doing another blood test in 4 weeks time to check again. I honestly thought my dog was going to die. Most awful & scariest thing I’ve ever seen with a pet. THIS STUFF SHOULD BE ILLEGAL ITS POISON!

Comfortis does not work any more – 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.