Just a quick thought about the quick saliva issue ... I have found that dairy products was a cause of this problem in me. I also use a generic form of Mucinex, but at this point it is a crushed tablet put through my feeding tube. By adding more citrus to my blended diet and by switching to almond or cashew milk, I have found a great deal of relief. Also increasing my water intake helps me too. Just personal experience that might bring you some relief too.