Adam,
That does happen but there is room to move on the Cymbalta. May I ask why you switched meds? Was the Effexor not working for you?
Effexor XR comes in 37.5mg, 75 mg, and 150 mg so you have room to move if you and your Doctor want to increase you dose. ( 112.5 mg or 150 mg).
Also there are other medications that work very well. I was on Cymbalta for close to a year and I never did have good luck with it. So I weaned off with my Pdoc's guidance.
Keep talking with us as we are here to help you.
Kind Regards,
Kitt