Levocetirizine
"I take this drug since about 3 years ago every other day.  I am a HBP patient so no decongestants for me.  This one is the one that has alleviated my allergies, as I have been a sufferer all of my life.  But it also makes me so relax that I sleep for more than 10 hours, then by Spring time they are not enough for me, and  taken everyday, I doze the whole day and symptoms of congestion is worse, I stopped using Flonase because it irritates my nose, then it burns and bleed.  So this year I tried myself a combination of both Levocetirizine 5 m and over the counter Claritin.  I felt so alleviated from my Spring allergy but I didn't feel sleepy at all."