Paxil is a medication that is used to treat depression, anxiety panic attacks, and other mental disorders. This medication works by balancing out a natural substance, serotine, in the brain. This medication is also known as a selective serotine reuptake inhibitor. Paxil medication helps in improving one's mood, allows you to sleep better, improves one's appetite and energy level. This medication is also used to treat post-traumatic stress disorder, anxiety disorders, and even obsessive-compulsive disorder as well. It reduces the urge to perform tasks repeatedly such as washing your hands repetitively, counting, checking, etc.