Frontline Plus is a monthly spot-on flea and tick treatment for dogs, sold in dose sizes colour-coded by weight band. This family covers small-dog Orange (up to 10kg) and large-dog Purple (20-40kg) variants of the same underlying product, allowing owners to pick the correct dose for their dog.

Frontline Plus kills adult fleas on contact and also targets flea eggs and larvae in the pet's environment, which helps break the life cycle rather than just treating what's already on the dog. It also controls brown dog ticks, paralysis ticks and biting lice. Applied monthly to the back of the neck, it begins working within hours and provides up to a month of continuous cover against re-infestation. Dosing is weight-based, so the correct colour-coded pack should always be used.

Frontline Plus is a long-standing name in monthly dog flea and tick treatment, and the dose-coded packaging makes it easy to repurchase the right product. Owners who have used it consistently tend to stay on it because it works across fleas, paralysis ticks and lice in a single application.