Edge for Cats is an effective topical medicine for cats and kittens of 8 weeks and mature for management of the cat flea (Ctenocephalides felis), among the most numerous and pervading species of flea on world. Edge can be utilized for flea control as it kills all mature fleas and breaks the life cycle. Edge can be found in pack of 4 and 6 pipettes: 1) orange pack (0.4 m l) for little cats and kittens of 1-9 pounds and 2) purple bunch (0.8 m l) for big cats over 9 lbs. One program will last four weeks s O A4 pipette lasts four months and therefore on.