Citalopram
"I started treatment for depression and anxiety in 2001 - Zoloft, which helped somewhat, and I continued for years until Cymbalta came along. I tried it and it was better than Zoloft. After a year on Cymbalta I started to find it to be too expensive. 

I'm a writer, a starving writer, and $5 a dose was too dear. I asked my doctor if he could recommend something similar but cheaper. He put me on Celexa. 

Wow - what a difference - Celexa was far more effective than either of the two meds I had  previously used- and dirt cheap!"