Paxil and Zoloft are two different kinds of antidepressants you can find in the drug market. They are usually prescribed to treat depression. Paxil is also known as paroxetine, and it can also help to treat obsessive-compulsive disorder, panic disorder, and social anxiety disorder aside from depression.
The name of the company responsible for the manufacturing of Paxil drugs is GlaxoSmithKline. In the early '90s, this drug was available for sale in the market, even earlier than Zoloft. The side effects of taking this drug include loss of appetite, anxiety, drowsiness, dryness of mouth, loss of sexual desire, diarrhea, trouble sleeping, and much more.
In contrast, Zoloft can also be referred to as sertraline hydrochloride. The company manufacturing this drug is named Pfizer, and the drug was approved in 1997 by the FDA. Aside from depression, this drug can also treat panic disorder, obsessive-compulsive disorder, and premenstrual dysphoric disorder. The side effects of Zoloft are also those of Paxil's.