Frontline Plus Spray for dogs and cats protects against fleas and ticks. It is safe to use on kittens and puppies from two days of age. It protects dogs against adult fleas for 12 weeks and cats for 8 weeks. Frontline Plus Spray for dogs and cats 100ml pack provides protection against paralysis ticks for 3 weeks and protects against brown dog ticks for one month in both dogs and cats. It also controls flea allergy dermatitis in dogs and cats for one month.