Plus for Dog comes in 4 sizes for dogs eight weeks of
age or older (11 to 22 lbs., 23 to 44 lbs., 45 to 88 lbs., and 89-132
lbs.) FRONTLINE Plus for dogs is the longest-lasting, most complete
spot-on flea and tick protection available. Research indicates that
FRONTLINE Plus for dogs not only kills 98-100% of adult fleas on
your dog within 24 hours, it also contains a special ingredient
that kills flea eggs and larvae, too, and keeps ALL stages of fleas
from developing. FRONTLINE Plus for dogs completely breaks the flea
life cycle by effectively stopping the development of new fleas.
And, kills all stages of 4 major ticks including the ones that may
transmit Lyme disease and Rocky Mountain spotted fever.