Jeff, cymbalta can cause dysuria - changes in urination. But it sounds like your doc may be attributing your urination problems to changes in your prostate.
If you're very uncomfortable, I'd suggest you call him back and try to discuss the issue further. But if he won't discuss the issue, ask him how you should safely come off of the medication, and also ask if you can try another medication in this class of drugs. Not all drugs in the same class produce the same symptoms.
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