Emodepside Praziquantel in Cats

Emodepside praziquantel is a prescription topical dewormer used in cats to treat several common intestinal parasites. In the U.S., pet parents usually know it by the brand name Profender. It is applied to the skin rather than given by mouth, which can be helpful for cats that resist tablets or liquid medication.

This combination is labeled for cats and kittens 8 weeks of age and older that weigh at least 2.2 pounds. It treats roundworms, hookworms, and certain tapeworms in a single spot-on dose. That makes it a practical option when your vet wants broad intestinal parasite coverage without the stress of pilling.

Even though it is convenient, it is still a prescription medication and should be used under your vet’s guidance. Not every cat with vomiting, diarrhea, weight loss, or visible worm segments has the same parasite problem. A fecal test, history, and exam help your vet decide whether this medication fits the situation or whether another dewormer, repeat testing, flea control, or a different plan makes more sense.

This medication combines two active ingredients that target different types of parasites. Emodepside works mainly against nematodes, which include roundworms and hookworms. Praziquantel works against cestodes, which include tapeworms. Using both ingredients together broadens the parasite coverage in one treatment.

After the solution is placed on the skin at the base of the skull, the medication is absorbed and distributed through the body. The label directions are weight-based, so the tube size matters. Your vet will match the correct applicator to your cat’s body weight and may recommend follow-up fecal testing if there is concern about ongoing exposure, reinfection, or incomplete response.

It is important to remember that deworming treats the parasites the product is labeled for, but it does not fix the source of reinfection. Cats can pick up worms again from fleas, hunting rodents, contaminated environments, or contact with infected feces. That is why your vet may pair deworming with flea control, litter box hygiene, and repeat parasite screening.

Most cats tolerate emodepside praziquantel well, but mild side effects can happen. The most common issues are temporary licking, grooming, or irritation at the application site. Some cats may seem restless for a short time after treatment, especially if they can taste the product.

If a cat licks the medication, drooling or foaming at the mouth can occur. This usually relates to the taste rather than poisoning, but pet parents should still contact your vet if signs are intense, prolonged, or paired with vomiting, weakness, tremors, or trouble walking. The product information also notes possible hair changes or mild skin reactions where the medication was applied.

See your vet immediately if your cat has severe lethargy, repeated vomiting, tremors, collapse, breathing changes, or any reaction that seems more than mild and brief. Kittens, medically fragile cats, and cats receiving multiple medications may need closer monitoring. Your vet can help you weigh the benefits of treatment against the risk of side effects in your cat’s specific case.

Emodepside praziquantel is given as a topical spot-on medication. In U.S. labeling, it is used as a single dose based on body weight, with specific tube sizes for small, medium, and large cats. It should only be used in cats 8 weeks and older that weigh at least 2.2 pounds, unless your vet advises otherwise under a different plan.

To apply it, part the hair at the base of the skull until the skin is visible, then empty the tube directly onto the skin. This location helps reduce licking. Do not apply it to broken or wet skin, and do not split tubes or guess at partial doses unless your vet has given exact instructions. Wash your hands after application.

Try to prevent your cat and other pets from licking or grooming the site for at least 1 hour after treatment. Your vet may recommend recheck fecal testing, repeat deworming, or additional flea control depending on the parasite involved and your cat’s lifestyle. Outdoor cats, hunters, kittens, and homes with flea problems often need a broader prevention plan than a one-time deworming alone.

Published interaction data for emodepside praziquantel in cats are not as extensive as for some older dewormers, so it is important to give your vet a full medication list before use. That includes prescription drugs, over-the-counter products, supplements, and any flea, tick, or heartworm preventives. Topical products used close together may increase the chance of skin irritation in some cats.

Because emodepside is a macrocyclic lactone derivative, your vet may use extra caution in cats receiving other neurologically active or antiparasitic medications. This does not mean combinations are always unsafe. It means the plan should be individualized, especially in very small kittens, debilitated cats, or cats with a history of medication sensitivity.

Tell your vet if your cat is pregnant, nursing, has skin disease, is underweight, or has had a prior reaction to dewormers. If your cat needs treatment for fleas at the same time, your vet can help you decide whether to space products out, choose a different route, or use a different dewormer altogether.