No, as you can read in Jacks article you can treat babesia with this product, when a dog is sick. It doesnt cure the dog from the babesia but it knocks it back into remission. Some, including Jack say this will bring back the old dog just a good as an expensive cure would do. Others say a dog will never be the same as before if its not completely cured.
Berenil promises to give 14 days protection to babesia, according to Jack you could give it in advance of a roll when you know or don't know the opponent is carrying babesia. I have never tried this though. I keep it in the house so i can treat my dogs fast if needed.
Im not from your country so im not familiar with this products, but there is plenty of good/innocent products to protect your dogs from ticks. I believe you can buy special tick&flea collars as well.