insomnia
"I have taken doxepin every day for 29 years. I started taking 75 to 150 mg for depression, but once the depression lifted, I continued taking 10-25 mg a day for insomnia. It has been a lifesaver for me as, since my teens, I have not been able to sleep without a sleep aid, over-the-counter, prescription. Doxepin allows me to fall asleep and stay asleep for 6-8 hours. When I started taking it I gained 10 lbs. in a week and have never lost it. I have dry mouth, but that is an inconvenience that I am willing to put with. I tried to wean myself off once, about 10 years ago, but felt very bad flu-like symptoms so I started taking them again. In the past 5 years so 10mg doesn't always do the job and so I often take 20 mg."