cats with worms  

Here in the US, over the counter de-worming medicines are not always safe for pets. Since you tried to get rid of them once yourself and it did not seem to work, I would take your cat to the Vet. When we first got our cats they were de-wormed, and about 3 months later one of them had worms. I brought her to the vet, they weighed her and gave me the pills. I wasn't charged anything for her to get weighted, just the cost of the pills - $10.00. All it takes is one flea jumping on your clothes, being carried inside and the cat eating it to get worms.

Over the counter wormers are usually pretty good at getting rid of worms, however, since your cat still seems to have them, I would recommend that you take the cat to the vet. Some types of worms do not respond to OTC wormers, and you'll need to get the cat on a higher powered one that you can get from the vet.

I'm not sure how your vet works, but, with some, if you can bring in a stool sample with the worm evidence, they can usually diagnose the type and give the proper de-wormer. This can also save some time, and if the vet doesn't have to swab for a sample, there is usually a lower fee.

Hope that helps.

What kind of worms? Roundworms? Tapeworms?

Roundworms look like spaghetti noodles. They are very long and very thin and can be seen when your cat goes poo.

Tapeworms look like rice grains and can be seen wiggling out of your cat's butt or can be seen in the poo. One of mine was infested so bad, his poo was covered in tapeworms and they were all wiggling.

Your vet will need to prescribe you meds for both. A stool sample (poo sample) will be needed so he or she can check to see what kind of worms that your cat has.

Like the other poster said, I would not trust OTC wormers from the store. They can be deadly. It may cost more at your vet's office, but I'd trust my vet over a bottle of wormer I saw next to the flea combs at the store.

Plus there are other types of worms that cats can get and the OTC wormers I know don't treat tapeworms. They do treat roundworms and pinworms, but not tapeworms.

you will probably have to take to a vet...

we had a cat many years ago that despite any treatment continuously got them...she lived with them for over 10 years before getting hit by a car...i am not sure what was wrong with her...kept trying this treatment that treatment, the vet was stumped too...