My fairly new cat came to me with tapeworm and I think both cats have it now. Is this something that can be effectively treated OTC? I'm freaking out here.. I am horrified that the lady who gave me the cat told me he had just seen a vet.. How could worms be overlookedd? I love my cats to death and want them well.. Ive read mixed reviews about store bought deworrmers and dunno what to do. I dont have a car right now so Id have to depend on a friend to take us to the vets if it camee to that. Has anyone had any luck with store bought dewormers? I want my babies beter.