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My cat vomits daily after eating, acts normal. Is it the Frontline?

Updated On September 23rd, 2025

Pet's info: Cat | Ragdoll | Male | unneutered | 6 months and 1 day old | 5 lbs

My ragdoll vomit after he eat his food, today is his 4th day of vomiting after he eat, and he seems pretty normal cause he plays and run like he was everyday. This happened after 2nd day of lice treatment with frontline spray. What should i do?

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2 Answers

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on July 7th, 2017

It sounds as Gab is suffering from a gastrointestinal condition, possibly an infection. it could also be due to ingestion of a foreign body material. i would recommend taking him to the vet the first chance you get, he will need to be checked first, if the vet thinks it's a simple gastrointestinal infection he will need an anti vomiting injection, antibiotics and a special food for a few days in order to get better.

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    Answered By Destini R. Holloway, DVM

    Veterinarian

    Published on

    I would be suspicious that your cat Gab may have a condition called megaesophagus, a toxicity to the Frontline spray, (typically also causes lethargy) or even a foreign body obstruction could be causing this. Cats will hide their illness and act normal in most cases until they are very ill and almost at the point of no return, so don't take the fact that Gab is acting normal but vomiting lightly. I would recommend taking him in to your local vet immediately fora proper exam, possible bloodowrk and radiographs to look for the underlying cause of his vomiting. I would recommend washing off the Frontline spray with a dish dawn detergent (taking care not to get any in his eye) first immediately, in case this is the cause. If you cannot get him in to the ER vet tonight, then its best to take him in to your vet first thing in the morning. At the very least the vet can give him anti-vomit medication to treat for his vomiting spells so that he can keep down his food, and treat for any other symptoms he may be having. Cats that can't hold down their food for several days can get a condition called hepatic lipidosis, which is life threatening in itself. I hope that your pet Gab has his vomiting episodes resolved soon.

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