Popular: heartworms, fleas & ticks, or randomize

Frontline Plus

Advantage II

K9 Advantix II

Usage Topical Topical Topical
Availability Non-prescription Non-prescription Non-prescription
Adult fleas
Flea eggs
Ticks
Heartworms
Roundworms
Hookworms
Tapeworms
Whipworms
Chewing lice
Ear mites
Mosquitos