Cetirizine
allergic rhinitis
"It worked great on my seasonal allergies.  I've had a real problem with insomnia.  Decided to check for causes and here I am.  I've been extremely sleepy during the day, but chalk that up to the lack of sleep.  I can't sleep more than 2 hours nightly.  It's killing me!  After reading all these reviews, I'm going to skip it today.  I hope I don't begin to itch like so many of you did.  It's a shame.  It made a world of difference to my head and sinuses."