Hello. I always used Revolution ampoule for large dogs. I have many cats. These ampoules are suitable for cats. Stronghold ampoules are suitable for cats, will I not kill my cats? And why do you have 6 ampoules on sale, and there are 12 ampoules on the box? How many ampoules are in this box?

If this is product is basically the same as Revolution why don’t you need a vet’s prescription? I’ve always had to for Revolution.

I just had a chat with an employee, and was told that Stronghold does take care of ticks. So I'm confused with some of the questions/answers here.

On the 7th of this month, it'll be the 30 day marker to reapply this medication for my dogs. My dog has a huge blood tick stuck on her chest. Why is it not dead? We applied it properly. Does this not kill ticks also?

Stronghold doesn't cover ticks, so if you have tick problem on your area, you should use tick treatment with Stronghold. However, Advantix only covers tick and fleas. It doesn't cover intestinal parasites and heartworm. According your answer: i also use drontal so drontal + advantix seems best options for my dog.