My senior cats have resistant fleas. What new treatments are safe?

They make several topicals such Frontline and Advantage that last for 1 month and do not require a prescription and can be purchased from a vet or a pet store. They make a topical called Bravecto that will last for 3 months or a tablet called comfortis that will last for 1 month but do require a prescription. Typically a flea problem is more of a problem in the environment than the pet so you may want to look in to treating the environment also

Fleas can be frustrating to treat. I know that many people have a lot of success with Seresto collars, but I have not. In order to treat Bandit’s fleas, I recommend using a good quality topical product, such as Advantage (use monthly) or Bravecto (prescription based and used every 3 months). Flea shampoos are rarely effective and can cause irritation to the skin, so I tend to steer clear of them. Be sure to vacuum daily, dispose of the vacuum bag frequently, and wash Bandit’s bedding in hot water. Continue to apply flea medication regularly in order to disrupt the fleas’ life cycle to prevent a recurrence. I hope this helps and that all goes well for Bandit!

Bravecto last for three months, but I prefer using a monthly topical treatment personally. That's because it can be reapplied after two weeks at the earliest if needed, while you would need to wait longer to give your pet Bravecto again.

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! I like Bravecto for flea and ticks. It is a topical that works for 3 months. Then I would use interceptor monthly for heartworm and intestinal parasites. Or you can use Advantage Multi and the Seresto collar for the ticks. But you are right there isn't a product that gets everything for dogs or cats. Have a great day!

the only flea collar worth anything is Seresto. It is labeled for 8 months of prevention, but I would expect around 6 months. They have Bravecto now that is a topical and it will last for 3 months now. If those do not help you may want to look into a hypoallergenic diet also

If it is available, my best topical flea treatment for cats is Cheristin. It is very effective and kills fleas before they bite, which is helpful for cats with flea allergies since it is the bite they react to. Comfortis is a tablet that is also very effective, but it can cause vomiting.

Thanks for using Petco Pet Education Center, formerly Petcoach! I certainly understand your frustration. There are 2 products that I particularly like in these cases where different therapies have failed to help. I like Bravecto as a preventative and Capstar to be used concurrently as needed for fleas. Capstar is crucial because it can help kill a lot of fleas at once and it can be used as often as once daily to effect. Also, it is important to vacuum the house and all things that have contact with them frequently. Try this for 1-3 months and if does not make a difference, they may have another type of allergy such as a food allergy or environmental allergy. This is likely going to help. Good luck and have a good night!