Are you able to try propranolol? It doesn't make me as sleepy as the hydroxyzine though I had to find the right dose (too high a dose in the beginning made me forgetful) I know it is a beta blocker but it is often used for anxiety. It doesn't make me tired the way the hydroxyzine or lose dose Seroquel did. And, you can spilt they hydroxyzine tablets in half though the type I have (25 mg) are very messy spiltters.

As long as the pills are not ER/XR/SR or gel caps that come apart, as a rule they are safe to split though run it by your psychiatrist if you can.