If you have taken antidepressant medication like Zoloft, Prozac or Lexapro to name a few, you may have experienced bizarre or intense dreams. This very disturbing, it does not mean the medication is making you worse.
Antidepressants suppress the REM stage of sleep which is the stage where you dream. The effect of this suppression is that you can get REM rebound where you experience very intense dreams. Changing medication may help as the effect may not manifest as much with the different medication.