Assurity® for Cats: Frequently Asked Questions
Q: What is Assurity topical solution?
Assurity provides a fast-acting, long-lasting way to protect your cat from fleas. Available only from your veterinarian, Assurity provides these benefits:
- Kills 98–100% of fleas in 12 hours1,2, before they can lay eggs
- Lasts a full month
- Non-greasy, topical solution is easy to apply
- Low-volume dose is effective for all cats
- Gentle on cats and kittens eight weeks of age and older
Visit About Assurity to learn more — or view product label in a printable format.
Q: What is spinetoram?
Spinetoram, the active ingredient in Assurity, kills fleas quickly on contact by targeting the fleas’ nervous systems, resulting in paralysis and rapid death. Spinetoram is advanced chemistry, a novel compound that has been scientifically proven to control fleas on pets.
Q: Why has my veterinarian recommended Assurity?
Your veterinarian has provided Assurity to kill fleas on your cat, to treat an existing infestation on your cat and/or to prevent future flea infestation.
Q: What should I discuss with my veterinarian regarding Assurity for my cat?
Your veterinarian is your cat’s healthcare expert and can give the best advice for your pet. This includes how to prevent and treat parasites, such as fleas, and the health conditions they can cause. Key points for your discussion might include the following:
Q: Can other medications be given while I’m giving my pet Assurity?
Yes, but make sure your veterinarian is aware of all medications you intend to use on your cat.
Q: Can Assurity be used on dogs?
No. Assurity is not registered for use on dogs. Assurity was developed for use exclusively on cats.
There are other products that would be great choices for flea control in dogs.
Q: When should treatment with Assurity begin?
Treatment with Assurity may begin at any time of the year. Consult your veterinarian for the flea regimen most appropriate for your area. Read more about using Assurity.
Q: Does seeing fleas on my cat mean the flea treatment is not working?
Assurity kills fleas before they can lay eggs when used monthly and according to the label directions. Remember that all animals in the household should be treated with an approved flea product to help control the flea population. Because each female flea can lay up to 50 eggs per day there is potential for a large buildup of eggs, larvae and pupae, resulting in a constant supply of new adults emerging in the cat’s environment3. (Learn more about the flea life cycle.)
Regardless of the product used to kill fleas, the cat can continue to be exposed to fleas living in the environment. When these fleas jump onto the cat, they will be killed quickly by Assurity.
If you see fleas on your cat within a month after your pet receives flea treatment with Assurity, it is most likely these are new fleas that have very recently emerged from pupae and jumped onto the cat. These new fleas will be killed quickly before they can produce eggs that contaminate the environment.
Consistent monthly application of Assurity should be maintained to provide continued protection for your cat against these fleas.
Q: How long does Assurity last?
Assurity has demonstrated efficacy for at least 30 days.
Q: Is Assurity available near me?
As with any product registered with EPA, individual states must review and register it. Find out if Assurity is available in your home state so you can ask your veterinarian for effective, long-lasting, easy-to-use flea protection for your cat.
Q: What potential side effects can be seen with Assurity use?
As with any product, consult your veterinarian before using on debilitated, aged, pregnant or nursing animals or animals known to be sensitive to pesticides. Sensitivities, such as hair sparseness or hair loss, or skin irritation or discoloration, or salivation may occur. If sensitivities occur or persist, contact your veterinarian.
