And so what that does is it disables the ability to produce that signal molecule. And so the inflammation process cannot take place properly. And so that relieves pain, it decreases pain, it removes headaches and so forth. So another type of suicide inhibitor that we commonly use is AZT. And AZT is a molecule that acts as a suicide inhibitor, and it basically treats HIV. So these are the three different types of Irreversible inhibitors.