Table of Contents
Does my cat need deworming?
Pick the right wormer
How to give your cat dewormer
What if my cat is unwell after deworming?
How often should you worm your cat?
If your cat has worms, they could have fleas.
First month flea FREE (*£2.99 P&P first month only)
Speedy same day dispatch**
12+ million flea & worm packs sold
Tailored to your pet
Blog Home
Flea
Ticks & Lice
Worming
Itch News
Itch Insights
Q&A
How to deworm a cat
- By Hannah
-
- February 2, 2026
- 2 MIN READ
Worms are gross. But also they can make your cat feel rubbish with a dodgy tummy, weight loss, dull fur, and in kittens that weird pot-belly look. Worms can pass to humans. So deworming your cat protects your pet and you.
Does my cat need deworming?
Ask yourself these questions and if you said “yes” to any of those, then deworming needs to be on your list. Basically, if your cat eats anything it shouldn’t (mice, bugs, who-knows-what), they’ll probably need regular worming.
-
Is your cat a hunter?
-
Do they wander outside?
-
Do you have fleas in the house (or suspect them)?
-
Are they a kitten?
Pick the right wormer
There are loads of products out there, get the right one for your cat. You want a worming treatment that targets roundworms, tapeworms, maybe hookworms if your cat’s a bit wild - Like the Itch Wormer Tablets for Cats that are tailored specifically to your cat and kill all common intestinal worms. It’s important to give your cat a tailored dose as giving them too much or treating them with a dog wormer could make them seriously ill.
Protect your pet from worms.
Intestinal worms can cause serious health issues for your pet and your family, but with a regular de-worming schedule you can protect your pet, home and family from these persistent parasites.
Itch Wormer tablets kills all common intestinal worms and prevent larvae from hatching and multiplying, until your pet's next regular treatment.
Shop now
How to give your cat dewormer
Giving your cat deworming treatment is a bit of trial and error. Once you find a technique that works for you, stick with it!
It’s important to give your cat their dewormer treatment with or after food. Never on an empty stomach.
-
Hide it in food. A bit of tuna, ham, or those fancy lick treats often does the trick.
-
Use a pill pocket. Pet shops sell treats with little holes just for tablets.
-
If all else fails, ask your vet to show you how. They’re absolute magicians at this.
What if my cat is unwell after deworming?
There’s a few things to note after deworming your kitty. Straight after treatment, don’t be shocked if you see bits of worm in the litter tray. It’s gross, but it means the treatment’s working.
In the hours afterwards, just keep an eye on your cat for a bit. They might seem a tad off for a few hours (bit of drool, a mild sick-up), but they should bounce back quickly.
If they vomit up the whole tablet or seem really poorly (shaking, lethargic, or anything weird), call the vet right away. Better safe than sorry.
How often should you worm your cat?
Click on your cat ⬇️
-
Kittens
Every 2–3 weeks until they’re about 12 weeks old, then monthly until they’re six months.
-
Adult cats
About every 3 months, especially if they’re outdoor adventurers.
-
Indoor cats
Less often, but still worth doing a couple of times a year.
-
Pregnant or nursing mums
Ask your vet for the safest options, but some deworming treatment states clearly if pregnant or nursing cats can have it. For example, Itch Wormer Tablets for Cats are not advised to be used on pregnant cats but can be used during lactation.
If your cat has worms, they could have fleas.
Fleas can carry tapeworms, so if your cat’s got worms, there’s a chance it came from a flea. This means you need to check your cat for fleas ASAP. Here’s our guide on how to get rid of 100% of cat fleas.
Ring the vet if:
-
Your cat’s really unwell i.e. not eating, throwing up, or super tired.
-
You suspect your kitten has worms.
-
You’re not sure which wormer is safe to use.
Worming your cat isn’t exactly fun but it’s a big part of keeping them healthy and happy. With the right product and a bit of tuna trickery, it’s really not that bad.
Protect your pet from fleas, ticks and worms.
Vet strength flea and worm treatments, tailored to your pet and delivered for free, every month, so you never forget.
Itch Flea kills adult fleas on your pet in 24 hours and halts all other flea life stages. Itch Wormer kills all common intestinal worms and prevents newly hatched larvae from growing and multiplying.
Get started
Share
itching for more?
Worming
Treatment
Signs, symptoms and treatments for worms
Worms are tiny troublemakers that can sneak into our pets' lives, causing discomfort and potential health issues. Don't panic! Here's everything you need to know about spotting worms and how to treat them. Keep reading to protect your pet, family and home...
Worming
Identification
What do worms in pets look like?
Have you ever wondered what those pesky worms lurking in your pet's system actually look like? Well, you're in luck! Read on to see photos of intestinal worms, their symptoms in your pet, and treatment options.
Worming
General
Can cat worms infest your home?
If you’re a cat owner, the thought of your furry friend having worms is skin crawling. And once your cat is infested by worms, you might be asking yourself all sorts of questions - Can you get worms? Can they contaminate your home? Don’t worry, we have all the answers so let’s get a wriggle on and keep your cat worm free!