Last year when our rabbit was terribly ill the Vet made sure Revolution was administered when she was admitted to the hospital for her first week long stay. So I would have to say it is good for even very weak animals. Just made my third purchase of this from petbucket because Annabelle has been thriving. She also has cat and dog sisters who are very chummy with her so she needs protection too.

I finally received my cat's stronghold. I was worried because it was like 21 days till it came. I used it and it is wonderful! I will order again but did not have automatic reorder because I think my next order he will be a full grown cat, not the under 5lb formula. I will tell friends about you. My only problem was the PO code would not go in the order and I was told to use a fake one by Elmer and then my confirmation email had the fake one so I worried till I got the product. Other then that, it was a pleasure using your company and it is a great product.

This works great!! I have used it on my kittens and also my Shih Tzu puppy. I never have to worry about them while I am using this product. In my opinion it is the best.