Sertraline sounds like an odd prescription for PCS. What symptoms is he trying to treat. It is an SSRI (selective serotonin reuptake inhibitor). They can be brutal. I have been on paroxetine (Paxil) for 12 years. It helps me with my brain getting struck on mundane thoughts, like the spelling of a word, a line from a song, or even a license plate of a car that drove by.

The side effects are not fun. I sweat like a pig. I have to have food in my stomach to sleep without nausea and other bedroom problems. But, it controls the looping thoughts.