"i&#039;ve been on pristiq now for 4 months and it has changed my life for the better. pristiq needs time to work though. during the first few weeks i had no desire to eat anything. then after the 3rd week i got my appetite back. i&#039;ve went from 150 pounds 3 months ago to 170 today. back to where i was. i&#039;ve gotten energy back whilst on pristiq and my desire to do things has returned. to those who are optimistic about pristiq i recommend that you give it a chance."