Vectra Felis is used in cats for the treatment and prevention of flea infestations. Its action lasts for a month and prevents the multiplication of fleas, inhibiting the opening of eggs and the appearance of adults for three months. It can also be used as part of a strategy to treat flea allergy dermatitis (an allergic reaction to flea bites).

All the contents of a Vectra Felis applicator should be applied directly to the skin at the base of the cat's head, after having separated the hair. The responsible veterinarian should assess the need for repeat treatment and determine the appropriate time interval between treatments.

How does Vectra Felis work?

The active ingredients in Vectra Felis act as ectoparasiticides, killing parasites that live on the skin or in the fur of animals, including fleas and ticks that feed on the animal's skin.

Dinotefuran is an insecticide that kills insects by acting on receptors called nicotinic acetylcholine receptors in their nervous system. Pyripr oxifene is a regulator of insect growth, which interrupts the life cycle of fleas by causing the production of infertile eggs and blocking the transformation of the larvae into adults.