Profender® is an easy and stress-free way to deworm your cat. Profender® combines powerful broad-spectrum treatment with the ease and convenience of a topical application. No more pills, no more shots. Profender® is the first and only topical broad spectrum dewormer that treats and controls tapeworm, roundworm and hookworm infections in cats. Profender® is a convenient single dose treatment for cats and kittens that are at least 8 weeks of age and weigh at least 2.2 lbs.