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.

My Cat Licked Flea Medicine! Here’s What to Do (Vet Answer)

Share

cat licking its paw

Routine care for your cat will often include giving them a monthly or tri-monthly flea treatment. Thanks to modern medicine, this has never been easier, as flea medicine is now often found in topical form—where the medication can be applied directly to the skin and absorbed. This prevents the dreaded pilling of a cat, which has sparked many a funny meme and YouTube videos about the dreaded process.

However, that doesn’t mean that a topical application is always as straightforward as one might hope or expect. Cats are masters at causing trouble, and sometimes, applying flea medicine is no exception. In instances where the medication runs a bit, it is applied too far down on the body, or a cat scratches at it, they may also have the chance to ingest some of this medication.

Read on to learn about what to do if this happens.

divider cat faces oct 2024

Is It Dangerous if My Cat Licks Flea Medicine?

The answer is that it depends. In most instances, these medications have a fairly high safety margin, which means that licking or ingesting a small amount of the product shouldn’t cause problems for most cats. Further, this is only a concern when the product is still fresh or wet. Once it’s dry, licking it off shouldn’t occur. Except for the neurological signs, the above-mentioned signs seem to relate to the taste of the medication rather than a reaction to the medication itself. However, if you have concerns, contact your vet or Animal Poison Control immediately.

If you are worried about your cat or just have some questions you want answered, head to PangoVet. It's our online service where you can talk to a real vet and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

What Signs Might I See if My Cat Licks or Eats Flea Medicine?

As mentioned, cats may lick feline-specific flea medicine after it has been applied on them. These products tend to taste bitter, and in those instances, you might see clinical signs, including the following:

  • Drooling
  • Lip smacking
  • Frothing at the mouth
  • Nausea or vomiting
  • Neurological signs

How Do Topical Flea Medications Work?

applying flea treatment to cat
Image Credit: Csaba Deli, Shutterstock

The more modern forms of topical flea treatments are applied under the fur, directly to the cat’s skin. When doing so, make sure that you are using a cat-specific treatment, as some dog treatments can cause cats to get very ill, have a seizure, or even die!

Once applied to the skin, the medication spreads through the skin and is absorbed into the body. Often, this means the treatment will last for 30 days or longer.

Older flea medications may contain pyrethroids; flea treatments for dogs also often include these products. While they may be ok for dogs, they are definitely not okay for cats and can cause severe toxicity and even death in this species.

Please note: This article does not address pyrethroid-based flea medications because if your cat has contact with these products, they require immediate veterinary intervention to avoid life-threatening consequences. This article does highlight the need to ensure that your cat receives only cat-specific flea treatments.

divider cat faces oct 2024

Frequently Asked Questions (FAQs)

Why Did My Cat Lick the Flea Medicine?

Great question! Most cats like to be clean, fastidious creatures. Therefore, when we apply something foreign to their haircoat, it likely feels quite odd for them!

Further, the wet sensation of the liquid may cause them to want to lick their coat.

And finally, many of these products do have a smell. For cats, whose sense of smell is far better than ours, the smell is likely quite pungent and even offensive. To them, licking is the easy way to remedy the situation.

Cat litter in bathroom
Image Credit: Karsten Paulick, Pixabay

How Can I Prevent My Cat From Licking Flea Medication?

Placement of the medication is key. Begin by placing the medication high up enough on your cat’s body so that they do not have access to lick the medication. This generally means somewhere on the back of their neck or even the back of their head. However, cats can also get a hind foot up to scratch the area of flea medicine application, which can drag the product down the side of their neck to where they can lick it. Again, putting the medication high on the neck or head should still limit their ability to access any of the spillages. If you have two cats, it’s important to keep them apart until the medication has fully dried, as one cat might lick the product off the other. Also, some of these medications come in very reasonable volumes. Rather than applying the entire vial in the same spot, it can help to apply the product in two or three locations, which will limit the chances of the medication running.

What Can I Do to Help My Cat if They Lick Flea Medication?

If they lick flea medication after it is applied, consider offering them a tasty treat or two to help take the taste out of their mouth. This can include offering some treats or something like tuna (assuming your cat isn’t allergic to fish!) to try and remove the bitter taste from the medication. In many instances, cats will refuse to eat the food in the heat of the moment, but it never hurts to offer.

divider cat faces oct 2024

Conclusion

In some instances, a cat that licks a cat-approved flea medicine might feel a bit nauseous or have a bad taste in their mouth. However, it is uncommon that eating a small amount of the medication will lead to major concerns. However, if something doesn’t look or feel right, don’t hesitate to reach out to your vet or to a Pet Poison Hotline.


Featured Image Credit: TeamK, Pixabay

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

2 Responses

  1. How will I know if my cat is ok after licking her flea medicine How long will it take to know if she is ok???

    1. Hi, sorry to hear about your cat licking the flea medication; this is far from ideal. The signs of intoxication are listed on the post. Since it sounds like you are very concerned, we recommend you contact www.pangovet.com. They can help you evaluate the urgency of the situation and guide you through the next steps to ensure your kitty remains safe.

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

Ask Dr. Paola – Help! My Cat Pees on My Bed (April 27, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

When Healing Goes Both Ways: Mochi’s Fight Against FIP and the Strength We Found Together

Why I’m Sharing This Now Five years ago, I was in the middle of one of the hardest seasons of my life. I...

Why One Squinting Eye in Cats Is Never Worth Ignoring

A cat squinting both eyes is usually a sign of contentment. A cat squinting just one eye is a different story. That asymmetry...

Ukrainian Troops Turned a Supply Drone Into a Pet Rescue Mission

Good news can be pretty hard to come by these days, particularly with war becoming a popular global pastime. But as we’ve discovered,...

More related

Arthritis in Cats – Vet Approved Causes, Signs & Treatments

If your cat seems a little less sprightly and active than usual, it can be a cause for concern. Some health issues could...

Why Is My Cat Staring at the Ceiling? 6 Vet-Reviewed Reasons

Cats are mysterious creatures. For ages, people have studied their behavior and tried to understand why they do the things that they do....

Why Does My Cat Like to Be up High? 5 Vet-Verified Reasons

As a cat owner, you know that when you look for your feline pal, you must look up most of the time. Above...

Is Peppermint Oil Safe for Cats? Vet-Reviewed Facts & FAQ

Cats are incredibly explorative and curious animals, often found rummaging through forgotten corners of your home for a new adventure. If you have...

Keep reading

Do Cats Have Eyelashes? Vet-Reviewed Anatomy Facts & Conditions

Cat eyes are fascinating animals to observe, but have you ever wondered if your cat has eyelashes? If you ask this question, you’re likely going to get mixed answers. Some people say yes, and others are adamant that the answer...

Blue-eyed ragdoll close up

Can I Crate My Cat During the Day? Vet-Approved Tips & FAQ

If your cat gets into trouble when left home alone, you might be desperate for a solution, especially if they’re prone to destructive behaviors. Maybe you’ve even wondered if you can crate your cat during the day like a dog....

Grey cat fell asleep in crate

7 Reasons Your Cat Is Suddenly Napping Somewhere New & When to Call the Vet

Have you ever walked into your bedroom and, instead of snuggling on the bed, your cat is curled up in the laundry basket? Yesterday it was the bathtub, and before that, the closet. Sound familiar? Cats are professional nappers, snoozing...

A ginger cat sleeps in box paper, selective focus

Chronic Diarrhea in Cats: Our Vet Discusses Signs, Causes & Treatment

Nobody likes it when their cat has diarrhea, the kitty included. Not only is it potentially messy, but it can also be frustrating if it’s been going on seemingly without end or if it keeps popping back up when you...

maine-coon-cat-using-the-litter-box

How to Tell If Cats Are Bonded: 6 Vet-Verified Signs to Look For

There is no doubt that cats are mystical creatures that often march to the beat of their own drum. Some felines prefer to be left completely alone, even shunning their humans, while others enjoy the pleasure of their owners’ company....

two cats side by side each other

Why Do Cats Follow Strangers? 7 Possible Vet-Reviewed Reasons

Cats are mysterious creatures, and sometimes their behavior is hard to understand. One behavior that often baffles pedestrians is being followed. However, it makes more sense if you look at the reasons why a cat would follow you and decide...

Cat following a person walking

Can Cats Get Razor Burn? Vet-Reviewed Care Facts

If you have a cat, there is a good chance that they will need to be shaved at some point in their lives, whether it be for a surgical procedure like getting spayed or neutered, or to treat a wound....

pet grooming at home

Can a Blood Test Show Cancer in Cats? Vet-Reviewed Facts & FAQ

As with humans, cancer is a leading killer of cats. Though the disease can be difficult to detect in felines, researchers are now developing blood tests that could help veterinarians diagnose cancer in cats earlier and more accurately. The hope...

Hand holding blood work samples in test tubes

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.