Sertraline
"I took it for 5 months under prescription because of work related anxiety and developing sleeping disorder. The side effects: low mental capacity, low will power, emotionally dead, no libido, and memory and concentration impairment, and really feeling down.  My psychiatrist insisted that the side effects are actually manifestations of my anxiety. But my mental and emotional health were going down. "It will work eventually" he said on our last meeting. One day l  crashed my car against a wall. I stopped immediately the medication, went through one week or so of withdrawal hell. I quit my job, went on a holiday and never took a pill again. It took me two years to restore my abilities, partly because of anxiety, but mostly of Zoloft."