A dr. I went to see wants to switch me from cymbalta to Effexor. In order to do so, she wants me to take 30mg of cymbalta along with 37.5mg of Effexor for one week and after one week take two 37.5mg of Effexor. I haven't done this bc I'm scared too. I know what it feels like when I miss a dose of cymbalta. I don't want to be sick. Any ideas or did someone do something similar to this?