Frontline® is a monthly application that kills 100% of fleas and their larvae within 24 to 48 hours.  In addition, Frontline® breaks the parasite life cycle, thus preventing them from laying eggs and reproducing.

Frontline® is applied to the back of the neck on cats.  It spreads naturally on the skin surface at the hair root level, aided by body movement to provide whole body coverage.

Frontline® A is water-resistant flea medication, so it continues to kill fleas even after a shampooing, swimming, rain or exposure to sunlight.

 Frontline® is for cats over 10 weeks old.