Trazodone
"I was prescribed this medication for anxiety because other anxiety medications caused insomnia.  It definitely helps with the irritability I was experiencing.  I sleep well if I take half of a 50mg pill.  Unfortunately, when I take a whole pill, I have trouble sleeping.  Despite not sleeping well, I usually have more energy and I am more productive the next day when I take a higher dose.  I also noticed that when I'm taking this medication I sometimes have a hard time speaking, words come out jumbled!  Overall, this medicine has the least amount of side effects of all the medications I've taken for anxiety (no appetite gain, no sexual side effects, no headaches or mood swings)."