I self-diagnosed my cat to have tape worms. You can tell when a cat has tape worms because they get little rice looking egg sacks stuck to their fur. I got these 3 tablets from Amazon (not prime though.. boo!). Anyways, it comes with 3 tabs and no instructions on how much to give your cat. I tried crushing one of the tabs up and mixing it with his favorite food.. My cat (who usually eats ANYTHING) would not touch the food for an entire day. Ok, that plan didn't work.Next, I held him down, put it in his mouth, and held it shut 'til he swallowed it. He was NOT happy with me and hid for the rest of the day. I would be mad too. Anyways, he threw up about 1/2 of the pill and never gave him the 3rd one. That being said, 1/2 of the pill treated his worms and they were gone within 72 hours.