Question: can duloxetine cause bad dreams?
Answer: This phenomenon likely centers around rapid eye movement (REM) sleep, the mentally restorative sleep cycle in which dreams occur. Many antidepressants suppress REM sleep. Escitalopram (Lexapro), sertraline (Zoloft), duloxetine (Cymbalta), and paroxetine (Paxil) have all been shown to have this effect.