"generic sertraline gave me some relief but it made me jittery and gave me headaches. after reading testimonials i insisted on the name brand zoloft. so glad i did. it&#039;s like a completely different medicine. more relaxed and not full of negative thinking. i still get overly anxious if something stressful happens but it doesn&#039;t last long. side effects are more tolerable, though it does make me tired."