A. The active ingredient in FRONTLINE (fipronil) kills fleas by affecting their nervous system, making them hyperactive before dying. These dying fleas often rise to the top of your pet's haircoat, so the presence of visible fleas after treating your pet, is a sign that the product is working.
How long does it take for FRONTLINE Plus to kill fleas?
24 hours
Why is my FRONTLINE Plus not working?
If you suspect it is not controlling your pet's fleas, you may, in certain cases, be able to reapply it in as little as two weeks and try again. Speak to your veterinarian about this first if your flea medicine is not working. One Frontline alternative is to switch to another topical product.
How do I know FRONTLINE Plus is working?
It is possible that you see more fleas on your pet after using Frontline Plus. However, this is a sign that the medication is working. Frontline makes fleas hyperactive before killing them and attracts them to the top of the hair coat, making them easier to spot.
Do fleas fall off after Frontline?
No, the fleas don't jump off after the treatment.
Does Frontline kill ticks immediately?
How long does Frontline take to work? Frontline starts working once the product has spread over the whole body surface, which can take up to 24 hours after application. Thereafter, fleas are killed within 24 hours and ticks killed within 48 hours.
What if I still see fleas after Frontline?
So once again, while you may see fleas on FRONTLINE Plus treated pets, they are in the process of dying and should be dead within 24 hours.
How do you get rid of fleas when Frontline doesn't work?
Speak to your veterinarian about this first if your flea medicine is not working. One Frontline alternative is to switch to another topical product. Another alternative is to supplement the topical product with another product that works internally, such as Capstar.
Is it normal to see live fleas after treatment?
The floors of your property will be covered by a layer of insecticide which is odourless and invisible. As eggs hatch and develop, you might find fleas reappearing 10-14 days after treatment - this is quite normal and provided the insecticide remains in place it will kill them.
Is FRONTLINE Plus losing its effectiveness?
Frontline products (Frontline Plus, Frontline Gold) and the K9 Advantix line are two of the better-known brands of topical flea preventatives that are reported to be losing effectiveness. These products have been in use long enough that fleas have adapted and become resistant to them.7 Jun 2018
Why do flea treatments stop working?
Incorrectly applying topical flea prevention is the most common cause for its failure to work. Flea prevention is expensive, and you don't want to waste a dose. Topical medication should be applied directly to the skin, not the hair. You must part the hair so that you can apply it to the skin at the base of the neck.12 Jun 2019