I don't know why they didn't give you one! I don't know if you can get one at a store, though. And, you can try putting it in wet food, but, my cats always would just eat around it. With something really irresistable, they're less likely to fuss with it. but, some cats will still spit out the pill. Can you get back to your vet (or any vet) to get a pill plunger?