While it doesn't cure the virus, it does help to manage it. My cats still sneeze and get watery eyes, but they do not have full-blown episodes of pink-eye and upper respiratory infections which requires a lot of antibiotics, etc. The powder is tasteless and blends in easily to soft or wet cat food.

My cats haven't needed as much antibiotics from the vet since they put them on this powder. It just takes a pinch mixed in with their food. And this is the cheapest price around!!