allergic rhinitis
"This medication did not seem to work any better than others I have taken, but it has made me extremely drowsy. I was not feeling well when I started taking it, so it took me a full week to figure out the XYZAL was making me so tired. I do not recommend this drug if you are susceptible to drowsiness side effects. Since it is sold in a 24-hour pill, I'm stuck being sleepy for a long time until this pill is out of my system."