The allergy medications make me tired in general. I am now on Zyrtex; I take it daily. This is making me a bit tired and the dry mouth as described above. I have not noticed that it has increased my appetite.

I do know though when I am tired I tend to consume more beverages or food to try to stay awake or if I am feeling sluggish which I interpret as boredom. I eat sometimes when I'm bored or stressed is the other time I eat when I shouldn't. However, I have not actually noticed my appetite itself increased as a result of Zyrtec.

Claritin and Claritin-D I did though notice directly increased my appetite.