Fluoxetine
"I've had OCD and anxiety all my life.  I'm in my 50's now, and about 8 months ago I finally sought help in the way of medication.  For years I had been going to a therapist to try non-medicinal ways of managing my OCD and anxiety.   It helped sometimes, but mostly day to day was exhausting at times with intrusive thoughts that led to anxiety and panic attacks.  My psychologist started me on 10 mg for 2 weeks, then to 20 mg.  Over time she has slowly increased me to 40 mg.  I had some side effects, like tiredness, but nothing I couldn't handle.  I'd say the worst side effect is with sex, but we've added Welbutrin which has helped.  Doing great on 40 mg but still not at 100%.  Increasing me to 50 mg in the next week."