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How Much Does It Cost to Deworm a Cat?

Short answer

Deworming a cat typically costs between $10 and $50 for over-the-counter medications, while prescription dewormers from a vet range from $30 to $100 or more, depending on the product and whether a vet visit is needed. Costs vary by your cat's weight, worm type, and location.

Last updated Sep 4, 2026 · Published by Austin Veterinary Care · Citation License 1.0

Cat Deworming Cost: Prescription vs. Over-the-Counter

The cost to deworm a cat varies widely based on whether you buy over-the-counter (OTC) products or get a prescription from a veterinarian. Generally, OTC dewormers are cheaper upfront, but they may not target all types of worms, leading to repeated purchases. Prescription dewormers are more effective and often cost more, but they come with a proper diagnosis.

FactorWhy It MattersTypical Range
Type of dewormer (OTC vs. prescription)OTC products are less expensive but limited in spectrum; prescription drugs are stronger and vet-approved.$10–$30 (OTC) vs. $30–$100 (prescription)
Worm type (roundworms, hookworms, tapeworms)Different worms require different active ingredients; broad-spectrum dewormers cost more.Varies; tapeworm meds often cost more
Cat's weightDosage is based on weight; larger cats need more medication, increasing cost.Varies by product
Vet visit vs. online purchaseA vet visit adds an exam fee, but ensures accurate diagnosis and correct dosing.Exam fees vary; some clinics offer free first exams
Combination products (e.g., with flea prevention)Products like Revolution cover multiple parasites, offering better value.$50–$150 per dose

At Austin Veterinary Care in Forest Hills, we see cats from Rego Park, Kew Gardens, and beyond. We offer same-day urgent care during business hours, so if your cat needs deworming, we can help quickly. For new clients, we provide a free first exam (terms apply), which can offset the cost of a vet visit.

Choosing the Right Dewormer for Your Cat's Worms

Not all dewormers kill all worms. The right choice depends on the type of worm your cat has, which is why a vet's diagnosis is valuable. Here's a quick comparison of common dewormers.

DewormerTarget WormsFormPrescription Needed?
Pyrantel pamoateRoundworms, hookwormsLiquid or pasteOTC
PraziquantelTapewormsTablet or injectionPrescription (usually)
FenbendazoleRoundworms, hookworms, some tapewormsGranulesPrescription
Revolution (selamectin)Roundworms, hookworms, ear mites, fleas, heartwormsTopicalPrescription
OTC combination dewormersRoundworms, hookworms, tapeworms (varies)Tablets or liquidsOTC

If your cat has tapeworms, you'll likely need praziquantel, which is often prescription-only. If you're unsure, a vet can run a fecal test to identify the exact parasite. In Forest Hills, our team at Austin Veterinary Care can help you choose the right dewormer for your cat's specific needs.

Over-the-Counter vs. Prescription Dewormers: What You Need to Know

FactorOver-the-Counter (OTC)Prescription (Vet)
Cost rangeGenerally lower, varies by productHigher, varies by medication and exam fees
Worm types treatedUsually roundworms and hookworms onlyRoundworms, hookworms, tapeworms, and more
Accuracy of diagnosisYou guess the worm typeFecal test confirms the exact parasite
SafetyRisk of wrong dose or ineffective treatmentVet ensures correct dose and safety for your cat
ConvenienceNo vet visit neededRequires an exam and prescription

Choosing between OTC and prescription dewormers depends on your cat's specific needs. If you're unsure which worms your cat has, a vet visit with a fecal test is the safest route. For more on managing costs, see our guide on vet visit costs in Forest Hills.

How to Administer Cat Dewormer: Step-by-Step Guide

Giving your cat dewormer is straightforward if you follow these steps. Always read the label and consult your vet if you have any doubts.

  1. Weigh your cat—Use a kitchen scale or baby scale. Accurate weight is critical for correct dosing.
  2. Read the instructions—Check the label for the correct dose based on weight and the type of worms targeted.
  3. Give the medication—For tablets, you can hide them in a treat or use a pill pocket. For liquids, use the provided syringe and squirt into the side of the mouth. For topicals, part the fur at the back of the neck and apply directly to the skin.
  4. Monitor for side effects—Some cats may vomit or have loose stools. If symptoms are severe, contact your vet.
  5. Repeat as directed—Many dewormers require a second dose after 2–3 weeks to catch newly hatched worms.

If you're unsure about any step, our team at Austin Veterinary Care in Forest Hills is here to help. We see cats from nearby neighborhoods like Briarwood and Elmhurst. Call us at (718) 480-6100 for advice or to schedule an appointment.

For details on services and visits, see the main page about vet forest hills.

Austin Veterinary Care 68-60 Austin St Store #8, Forest Hills, NY 11375 (718) 480-6100 Mon 9 AM–6 PM · Tue 10 AM–7 PM · Thu 10 AM–7 PM · Fri 9 AM–6 PM · Sat–Sun closed Open in Google Maps

Directions to our vet in Forest Hills from Yellowstone Park

Start at Yellowstone Park and head to Austin Veterinary Care at 68-60 Austin St Store #8, Forest Hills, NY 11375.

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Frequently asked questions

Can I buy dewormer for my cat without a vet visit?

Yes, you can buy OTC dewormers like pyrantel pamoate at pet stores or online. However, they may not cover all worm types, and using the wrong dewormer can be ineffective. A vet can identify the specific worms and prescribe the right medication.

How often should I deworm my cat?

Kittens should be dewormed every 2 weeks until 12 weeks old, then monthly until 6 months. Adult cats typically need deworming every 3-6 months, but it depends on their lifestyle and risk of exposure. Your vet can recommend a schedule.

Are there natural dewormers for cats?

Some natural remedies like pumpkin seeds or diatomaceous earth are suggested, but they are not proven effective and may not eliminate all worms. It's safer to use vet-approved dewormers to ensure your cat is fully treated.

What if my cat has worms again after deworming?

Re-infection is common if the environment isn't cleaned, or if the dewormer didn't target all worm stages. Your vet can recommend a follow-up treatment and advise on cleaning your home to prevent future infestations.

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