depression
"I took Effexor for three years due to depression. I loved the fact that I was no longer depressed but I was tired all the time. I could sleep for 10 hours get up and two hours later I was ready to sleep again. If I missed taking a dose I would get a horrible headache. The only reason I stopped taking Effexor was due to being tired all the time. Getting off of the medication was awful. I have never been so sick in my life. If you are going to take this medicine the rest of your life I highly recommend it. It did wonders for my depression."