So for as long as I've owned my cats (about 4 years) I've been looking for a good dewormer. Luckily none of my cats have ever gotten a serious worm infection but I'm always on the look out for medicine that can keep them from having to go to the vet (2 of my cats get very stressed out and have to be medicated). I believe they have only ever gotten tapeworms (little white bits around their butt?) and they do get a yearly dewormer but idk if that's enough. Any recommendations for dewormer or ways to prevent worms?