advocate is like frontline combo - treats fleas on your pet and the home (via treated hairs falling off the pet). but with added worm control - of all major internal worms - but not tapeworm. so if your cat is a hunter you still need a monthly tapeworm treatment.

i know you can buy it cheaper over the internet than from most vets but IMHO i would steer well clear of anyone offering to sell it to you without a vets prescription. these internet sites can be seriously dodgy and there have been several cases now of counterfeit drugs being passed off as the real thing. those who are willing to break the law and sell with no prescription are dodgy and i wonder what other medicines laws they are willing to break!!

get a prescription and buy from the internet with care or just show your vet the internet prices and see if they are willing to deal (our practice sometimes does). i would not risk putting something on my cat that i was not 100% sure was the correct drug and dose.

*steps down from soapbox*

hope that helps