ontheverge, have you ever tried Claritin (active ingredient loratadine)? I take generic loratadine, which is widely available.

Loratadine is said to take effect a little less quickly than cetirizine/pseudoephedrine, the components of Zyrtec. But you might have less dryness with it.

HU makes us thirsty too/dry-mouthed too . . . . I always have to remind myself to drink water, lots of water!