For optimal control of fleas, all cats and dogs in the same household should be treated at the same time.

While we have taken care in preparing this summary and believe it is accurate, it is not a substitute for your reading the product packaging and label prior to use. in the meantime we'd used frontline plus and put a 2nd pipette after the allotted time but she was still chewing her fur out on both back legs and now her tail. Of course fleas link in with the worm life-cycle too and end up causing a lot of pathology, so trust veterinary advice and look after your pooch with these!However, fleas are killed after contact with your treated pet: within 24 hours for FRONTLINE PLUS ® and FRONTLINE ® SPOT ON, or within 6 hours for FRONTLINE TRI-ACT ®. Prevention of flea multiplication by inhibiting egg development (ovicidal activity) and larvae and pupae (larvicidal activity) originating from eggs laid by adult fleas for eight weeks after application. Frontline Plus Spot on Flea and Tick Treatment for Large Dogs is not suitable for use on cats or rabbits.

Kills by affecting the parasites central nervous system, making fleas appear more visible before dying. Frontline Plus Spot-on Large Dog (20-40kg) [6 pack] not only kills fleas and ticks on your pet it also contains active IGR technology that stops flea eggs from hatching and larvae developing in your home. Unlike other flea treatments, FRONTLINE Plus® kills ticks too, helping to reduce the risk of tick-borne disease transmission. Frontline Spot-on Large Dog contains Fipronil 268mg and (S)-methoprene 241mg Easy to use pipette containing 2. Treatment of tick infestations (Ixodes ricinus, Dermacentor variabilis, Dermacentor reticulatus, Rhipicephalus sanguineus).I've heard comments from other dog owners in recent times that Frontline doesn't work any more but my dog enjoys walks in fields that sheep and cattle have been, or are in, and mixes with other dogs and there are no signs of the parasites.