How does ZoGuard Plus compare with Frontline Plus?

It uses the same two active ingredients, fipronil and (S)-methoprene, and is marketed as comparable in flea and tick protection. The main practical difference is the brand and the packaging; the dose here covers one month.

How often do I apply it?

One dose gives about four weeks of protection. Reapply monthly, and do not reapply sooner than the label allows.

Does it still work after a bath or swimming?

Yes. The formula is waterproof and stays effective after bathing, water immersion or sun exposure, once it has dried and spread on the skin.

Which dogs can use it?

This dose is for dogs weighing 5 to 22 lbs. Do not use it on cats, and check the label for the minimum age for puppies.

One monthly dose, providing about four weeks of protection for a dog in the 5 to 22 lb range.

Will it stop fleas coming back?

It kills adult fleas and stops eggs and larvae from developing, which helps break the life cycle. Re-infestation control also depends on treating the home and other pets.