Not Thirst but Dry Mouth/Throat?

Couple days ago I realized that I drink a lot of water, not so much because I'm thirsty but because my mouth is dry and throat is irritated.  Kinda like when you sleep all night with your mouth open.  At first I thought it was the diuretic making me thirsty.  Which at first it probably was.  I don't remember my throat having that irritated feeling, which I notice more now.  I wonder if its the losartan.  Maybe I'll try sucking on hard candy.  Though drinking more water is probably a good thing.