I took Citalopram 40 mg for 7 years. Dr. tried to switch me to Fluoxetine & failed. My constant anxiety came back! He tried to put me back on the Citalopram & it didn't work. I've been on 20 mg of Escitalopram for 4 weeks exactly & I'm still having anxiety. Mornings are horrible! Has anyone ever been on 30 mg of it? And has anyone switched from Citalopram to Escitalopram & had it work even if the Citalopram didn't.