Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How to Deworm Feral Cats: 4 Tips & Tricks (Vet Answer)

veterinarian uses an oral syringe to administer liquid dewormer to a kitten

Deworming cats can be challenging at the best times, especially if they are feral. Cats have the marvelous ability to turn into agile gymnasts, and alongside their claws and teeth, this can make shoving a tablet down the back of their throats next to impossible.

Unfortunately, being proficient little hunters, feral cats are prone to worms and parasites, so regular deworming protocols should be put in place if you are caring for one. Worms can be detrimental—even fatal—to their health in the long term, so it is essential that parasite treatment be undertaken, especially if you’re introducing a new cat to an existing multi-cat household.

There are a few ways that you can deworm a feral cat that will not result in injury for either party. Read on to find out more.

divider 3 paws

The 4 Tips on How to Deworm Feral Cats

1. Put the Medication in Their Food

The simplest way to deworm a feral cat is to mix the medication with their food. Deworming products are available in both liquid and granule form, making it easier to give when you need to administer it to the cat over multiple days.

One is “Panacur” (fenbendazole), and it covers roundworms, tapeworms, hookworms, and giardia. It usually needs to be given once daily for 3 days and can be given to kittens from 4 weeks of age.


2. Put the Medication in Their Milk Replacer

For kittens, you can mix the worming product with their milk replacer. Once they have been introduced to the taste of the milk and readily consume it, you can add the worming medication to the bowl. This is especially helpful if you are attempting to deworm multiple feral kittens.

kitten drinking milk outdoor
Image Credit: BeautifulPicture, Shutterstock

3. Use Topical Ointments

Many worming medications are administered by applying them directly to the skin. This can be a great option if you can hold the cat. Some products often have the added benefit of protecting against fleas and ticks. You can get basic dewormers as spot-on treatments too, including Drontal Spot-On and Profender.

These products should be applied on the back of the neck to stop the cat from licking them off. They should also be applied to a part of the skin that is free of wounds and scabs.


4. Visit the Vet

It is always recommended (if possible) to take the cat to the vet for a health check. This way, they can conduct a thorough examination, usually under an anesthetic, and provide the treatment and spay or neuter them at the same time. While the cat is under an anesthetic, the vet can administer the worming and flea medications and treat any other issues that the cat is presenting with. Spay and neutering is a vital component of controlling the feral cat population, and many programs worldwide are doing great work to combat the ever-growing problem.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 3 paws

What Are the Worms That Require Prevention & Treatment?

The most common worms found in cats are roundworms, tapeworms, and hookworms. They live in the intestines of cats, though in their immature stages, they migrate around different parts of the body and can cause a wide array of clinical signs. They spend most of their lifecycles living in the natural environment and can live in other hosts (such as rodents, insects, and birds), which is why cats should be dewormed at regular intervals, especially if they have access to the outdoors and like to hunt.

Tapeworms can also be transmitted to cats by fleas. Therefore, it should be assumed that a cat that has a flea burden also suffers from tapeworm. A large aspect of controlling tapeworms is to control flea infections too.

Depending on which part of the world you live in, cats can also get lungworms and heartworms. Lungworms are spread by slugs and snails and heartworms by mosquitoes. Certain worming products (such as monthly spot-on treatments Stronghold and Advocate) include prevention for these parasites. Oral formulations like Panacur and Drontal do not.

Generally, kittens must be treated for worms every 2 weeks from approximately 3–4 weeks of age and then monthly until they’re 6 months old. Treatment should then be given every 1–3 months. There are many worming products on the market, which can be confusing, so it is always best to seek advice from your veterinarian if you are concerned.

cat and owner and vet
Image Credit: Stock-Asso, Shutterstock

divider 3 paws

Conclusion

Deworming feral cats is a challenge but it isn’t impossible. While we may think that cats can take care of themselves, life on the streets is tough. They must deal with parasites, disease, illness, and injury. Most well-cared-for domesticated cats can live up to 20 years old, but the expected lifespan for a feral cat is reported to be 2–5 years. So, if you are caring for a feral cat or have recently adopted an unsocialized cat, deworming is a crucial component of their care. Your local veterinary clinic is always available to provide you with advice, so don’t hesitate to contact them.

See also:


Featured Image Credit: MDV Edwards, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.


How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

4 Responses

  1. I am feeding a feral cat that is very skinny and I suspect worms. I cannot get near the cat as she is very skittish….how do I deworm her – there is no taking her to a vet.

    1. Hello Cathy,

      thank you for your question. It is natural for feral cats to be very careful – it is instinct that helps them survive. As mentioned in the article, the simplest way to deworm a feral cat is to mix the medication with their food. Deworming products are available in both liquid and granule form, making it easier to give when you need to administer it to the cat over multiple days. Therefore, if you want to deworm feral cat and cannot use topical treatment, this would be your best option.

      Hope this helps!

  2. Have been caring for rescued/abandoned feral kitten for almost 3 weeks. Brought her to vet to get one eye with the 3rd eyelid often visible checked. No scratch or evidence of injury/trauma. No signs of upper respiratory infection. What are other possible causes?
    Thank you.

    1. Hi L. Romportl,

      Thank you for caring for this rescued kitten and for being so proactive about her health.

      The third eyelid can become visible for a number of reasons. You can find more insights here:

      – https://www.catster.com/cat-health-care/cat-third-eyelid-showing/
      If the third eyelid remains visible or if her behavior changes, it may be worth consulting a veterinarian. You can also schedule a virtual consultation with one of our vets at Pangovet.com for further guidance.

      We hope your kitten feels better soon! If you have any other questions, don’t hesitate to leave a comment.

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Wilson Was Blind and on Death Row, Then He Got 3 Big Breaks

Wilson is proud to call himself a “perfectly imperfect cat.” It’s a plaudit he’s come to own by virtue of going through life...

How to Choose the Right Cat Carrier in 2026: 7 Vet-Approved Steps

Cat carriers are a convenient way to transport your cat both short and long distances. Cat owners might feel overwhelmed when looking for...

Coughing in Cats: Causes & Treatments (Vet Answer)

If you’ve lived with a cat, chances are you’ve heard them coughing at some point. Some coughs can sound quite loud and coughing...

Is Basil Safe for Cats? Vet-Verified Nutritional Facts & Safety Guide

Basil (Ocimum basilicum), also known as sweet basil, is a member of the mint family. It is native to India but grown across...

More related

7 Best Cat Cone Collars of 2026: Reviews & Top Picks

If your cat is licking a spot on their body to the point of baldness or they are recovering from surgery, you’ll need...

The 6 Vet-Reviewed Reasons Why Your Cat Guards Your Door

Cats come with all kinds of cute quirks, including their guarding behaviors. As aloof or indifferent as our cats can often appear, it’s...

Runny & Watery Eyes in Cats: Causes & Treatments (Vet Answer)

Your cat’s eyes are not only pretty but also amazingly complex. Unfortunately, they can be fragile, too, and need to be taken care...

24 Types of Ragdoll Cat Colors & Patterns (With Pictures)

Ragdoll cats are wonderful for so many reason, including a generally relaxed and affectionate nature. Their striking blue eyes and soft, medium-length coat...

Keep reading

What Do Cats Do All Day? 7 Usual Things

Pet cameras may be all the rage these days, but unless you have one in every room, you won’t constantly have eyes on your cat. This is especially true if your cat spends all or part of the day outside....

persian cat lying on couch

Can I Use Hydrogen Peroxide on Cats? Vet Reviewed Risks & Advice

Hydrogen peroxide is a chemical that has a variety of uses. It can be used as a cleanser to kill yeast, mold, viruses, fungi, and bacteria. It can be used to wash veggies, clean your toilet, shine mirrors, treat sick...

hydrogen peroxide

7 Best Kitten Foods for Diarrhea in 2026 – Reviews & Top Picks

If you have a kitten with diarrhea, it can be a scary experience. Diarrhea can dehydrate your kitten and rob it of important nutrients it needs to grow into a healthy cat. In some cases, you can improve the situation...

American cat kittens eating

How to Get Your Kitten to Like Water: 4 Vet-Reviewed Methods

A popular complaint among pet cat owners is that their cats don’t appreciate baths and are not cooperative when it comes to being given baths. Though there are many possible reasons that a cat may have an aversion towards baths,...

british shorthair cat peeps from the bathtub

Why Do Cats Act Weird When Scratching the Base of Their Tail? 10 Vet-Reviewed Reasons

It’s not uncommon for cats to act weird when you scratch the base of their tail. This area is quite sensitive, and cats respond one way or another. Additionally, a tail that sticks straight upright into the air is referred...

young cat breathing heavily

11 Best Cat Foods for Urinary Tract Health in 2026: Reviews & Top Picks

Good urinary tract health is essential for your cat’s overall health. Many cats are prone to urinary tract infections. However, their owners may not even know it because cats are good at hiding their illnesses. Chronic urinary tract problems can...

Cat eating kibble from 2 raised cat bowls on the floor

What Happens If You Neuter a Cat Too Early? Vet-Reviewed Facts & Advice

There are over 60 million homeless cats across the United States.1 For some, living outdoors is all that they’ve known, having been born to feral parents. For others, this way of life is something that they’ve had to navigate and...

a tabby cat in a medical blanket after neutering surgery

How to Get a Urine Sample From a Cat: Effective Vet Approved Tips & FAQ

A urine sample can help a veterinarian check for various conditions in a feline’s urinary tract and kidneys. If your vet has asked you to bring in a sample of urine from your cat, you might be feeling a bit...

woman collecting urine sample of an orange cat