"i have been on this medication for 1.5yrs &amp; it has been great! was on paxil for 3 yrs prior to switching to cymbalta. it worked in about 3 days and i havent had any abnormal feelings of anxiety since i started this med. i haven&#039;t had any side effects from taking it. i had experienced some weight gain from paxil, but none on cymbalta. the only thing is that if you miss a dose, your terrible headache will remind u that u forgot to take it! other than that, it&#039;s been great."