allergies
"I started Xyzal in late August due to repeat sinus infection and allergies. Last week, I skipped two doses by mistake and that was the worst thing that I could have done! I had a full blown panic attack in the truck while on our way home from running errands. I literally jumped out of the truck why it was still moving because I felt like my head was about to explode! It was the worst day ever. I am now only taking half a tablet to wean myself off this drug. Had I known these severe side effects after wanting to stop them, I never would have started them. Since halving my dosage, I have been having anxiety, joint pain, itching, and swelling in my sinuses. I am hoping to be off of these within 2 weeks since I only took them for around two months"