Credelio Cat also treats and controls one type of tick in cats. Both products contain the active ingredient lotilaner. Lotilaner does not treat flea eggs, larvae (immature fleas), or fleas in the ...

Credelio CAT is also indicated for treatment and control of black-legged tick infestations for one month in cats and kittens 6 months of age and older and weighing 2 pounds or greater.