Hi Bob,I too am suffering with mrcc,I used the mouth wash when I was on sutent my dentist told me about a tablet called Quantum Ora Moist,its a time released tablet that is put on the roof of the mouth and last about 4 hrs. I use it on a regular basis even now. If you come across another tablet that claims to do the same make sure the main ingredient is (xylitol) my dentist said its what causes the moisture in the tablet. I am now on InLyta and it doesn't seem to be working so I'm just waiting to see what is going to be my next treatment,I've already tried sutent,Afinitor and now the InLyta. Good luck with everything Bob. Sue-Canada