Major Depressive Disorde
"I took Pristiq for 6 years for depression, PTSD and anxiety but wasn&#039;t getting results anymore. My Dr. Switched me to Fetzima but I had an allergic reaction.  Ultimately I ended up on Brintellix. I started on 5mg and am currently on 10mg. Although the medicine works, the GI side effects are almost intolerable. I tried bumping up to 20mg and would vomit within an hr. The current 10mg. dose causes nausea, increased acid reflux, constipation, gas and bloating. Considering switching."