It was purchased for protective use against common cold viruses, the flu, and potentially SARS-CoV-2. I cannot know to what extent it helped, but since last autumn when its use began, any illness with the above viruses has been avoided. Of course, iovir is used in conjunction with a mask in enclosed spaces, where this is feasible. Overall, I would recommend it as a supplementary means of protection.

Unfortunately, I bought it in my desperation and despite its advertising, it didn't work at all. Moreover, it was distressing when I saw the ingredients. No matter how much they try to cover it up with a patented name like caragelose, carrageenan (of all three types) is a harmful substance and it is easy to discover this with just one search. I threw it away and will never use it again. Neither this nor the throat one, which also didn't do anything, not even a bit. Io-vir=ιος-virus. It's a new product that simply capitalizes on people's fears related to the coronavirus. I wouldn't even give it to my worst enemy. Be careful what you put in your nose and mouth.

The pediatrician recommended it for prevention, theoretically it does not allow viruses to reach the nasal mucus... it is unpleasant as a sensation at first... we did not avoid childhood infections but maybe they were milder and less frequent compared to, for example, the first year at daycare...