Tapeworms. The come from flea larvae. The cat can get them if he ingests an infected flea larvae. Most puppy dewormers do not treat tapeworms, what is the dewormer he was treated with?
He will be ok. Nothing to do except deworm with a medication for tapeworms, and be sure to treat for fleas.
He will be ok. Nothing to do except deworm with a medication for tapeworms, and be sure to treat for fleas.