Saliva substitutes
xerostomia
"I actually liked this product when I was using it, but hated the inconvenience of having to mix the powder.  It was hard to use away from home.  My doctor gave me a lot of samples but now he said it isn't available?   Not sure why.  I like a new product he gave me a sample of called Lubricity (it's an oral spray) and I love the convenience of it.  It also seems to last considerably longer than NeutraSal and most of the other products I've tried.  Unfortunately it's not in any stores by me yet"