Frequently Asked Questions
How does FRONTLINE Plus kill fleas and ticks?
FRONTLINE Plus has 2 secret weapons: fipronil and (S)-methoprene. Once FRONTLINE Plus is applied, this combo stores itself in the oil glands in your pet's skin. It then self-distributes continuously for 1 month to your pet's hair and skin through the hair follicles. Fleas or ticks that come in contact with your pet are dead meat.
How long does it take for FRONTLINE Plus to kill fleas?
In a study, FRONTLINE Plus began killing fleas 4 hours after application.1 Another study showed that within 12 hours, Frontline Plus killed 100% of fleas.2
Do fleas and ticks have to bite my pet for FRONTLINE Plus to work?
No. FRONTLINE Plus kills fleas and ticks through contact with your pet's haircoat. No biting necessary.
Why am I seeing more fleas on my pet after applying FRONTLINE Plus?
Fleas rise to the top of your pet's haircoat as they die. So if you start seeing more fleas after treating your pet, consider it a victory for the killing force.
After using FRONTLINE Plus, I still see fleas in my home. Why?
The fleas you see most likely started as flea eggs that were deposited in the environment before you began using FRONTLINE Plus. Consecutive monthly applications of FRONTLINE Plus will assist with the elimination of an indoor flea life cycle. In some geographical regions in the United States, it may be required to use the product year-round.
Does FRONTLINE Plus have an expiration date?
No. As long as you keep it at room temperature and sealed in its original packaging, FRONTLINE Plus will remain ready for battle.
How long after application can my pet be bathed or go swimming?
FRONTLINE Plus remains effective for 30 days, even if your pet swims or is bathed. After application, keep your pet from getting wet for 24 hours. If FRONTLINE Plus is to be applied after a bath, make sure your pet is completely dry before application.
Can I use it if my pet is on medication?
Before using FRONTLINE Plus, ask your vet about possible interactions with any medications your dog is taking.
Can I use FRONTLINE Plus if I have already applied another flea and tick control product?
Before using, consult your veterinarian.
Does FRONTLINE Plus kill anything else besides fleas and ticks?
You bet. FRONTLINE Plus also kills chewing lice.
Can FRONTLINE Plus be used on pets other than dogs and cats?
No. FRONTLINE Plus should be used on dogs and cats only. There are specific products based on what kind of pet you have and how much it weighs. Be sure to use the right product for your pet.
Can I apply it more than once a month?
Don't reapply FRONTLINE Plus before the month is through. It keeps working for a full 30 days.
How old does my pet need to be in order to have FRONTLINE Plus applied?
At 8 weeks your pet can start benefiting from the power of FRONTLINE Plus.