"i am taking 5mg. i  also take lithium and have been weaning off seroquel. i take xanax at night. i am going on three weeks and it&#039;s been amazing. i have been more productive in the last week then the last 20 years. i work in a call center and i am less irritated and more productive. my customers love me. i didn&#039;t take seroquel last night and barely sleep but i feel okay today just a little tired. will see how it goes. my doctor said in her experience 5mg at night is a good dose. i would like to say though that this drug is so expensive. without insurance its almost $500 a month for 5mg for 30 days. it makes me sad there are so many who wont be able to afford this."