I took Effexor from March 2004 to January 2007 after being diagnosed with major depression.
Good effects: Less depression, more energy, less obsessive thoughts on past mistakes, felt like I was caffeinated all the time
Bad effects: Involuntary muscle twitches like a leg or back muscle, incredible nausea/sick to stomach feeling, insomnia, manic behavior, poor judgment, frequent urination, fogginess, memory problems
I'm normally a very careful person, so when I say poor judgment - I mean horrible judgment. I don't want to get into it on a public forum but if you PM me I can explain it.
My depression has been getting worse these last three weeks, so I'm considering trying another anti-depressant. I've been dwelling on my flaws obsessively. I really don't want to use Effexor anymore. I plan to call my doctor this week to make an appointment.