Profender Killed My Cat

Our vet, who used to give us a tablet to worm our cat, instead gave us a new product called Profender made by Bayer. It is applied topically on the shoulder blades like flea and tick medicines. Three days later she went into seizures and died of cardiac arrest at our vet’s office. He agrees that this almost certainly is the cause of her death.

Has anyone else had a similar experience?
Olivia B

6 thoughts on “Profender Killed My Cat”

  1. Profender killed my cat too! He died of renal failure 2 days after application. DO NOT use Profender on any cat you care about!

    1. I gave my cat profender three days ago as instructed by the vet. She immediately bolted out of the cat flap and has been missing ever since. I’ve looked for her everywhere but can’t find her. I’m feeling overwhelmed with guilt, reading all the side effects I was previously unaware of, that I have unwittingly poisoned my cat and she has died in horrible agony, alone in a ditch somewhere. The vet did not warn me that it was a dangerous medicine and there was no leaflet in the box. I feel absolutely terrible.

  2. We lost our healthy cat of 2 years to this new wormer… she was fine then hours later was like paralyzed in the back end and could not walk. Took her to vet and she died. Horrible experience.

  3. We found a kitten (RIP baby Alice) few months ago. We took her to the vet and they gave her Profender, next day we found her paralyzed and bleeding from her bottom. She died shortly after we found her. I regret taking her to the vet. I paid money thinking it would make things better but instead these assholes killed her.

  4. I gave my cat Profender Saturday, and he has been hospitalized on IV, steroids and antibiotics. It isn’t going to save him. Liver test came back high when they tested him yesterday. Liver was fine on day one.

  5. Vet gave my healthy cat of 3 yrs profender. Three weeks later shes dieing in my arms as we speak. Was hospitalized and out on fluids but it didnt save her. Ill never take my animals to any vet except for their base vaccines. The worst part is no ones hurt by this but myself and my cat. Please do not use profender. It can take up to 45 days for an adverse reaction to occur. Basically once that happens theres no going back. No anti-profender, just death.

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