After 5 months of taking Cymbalta (20mg/day) + dextromethorphan SR compounded, I have learned that they have a drug interaction and should not be taken together. I am on numerous other nerve pain meds. I have whole body CRPS symptoms and severe burning pain mainly. I would like to ask for opinions on which would be best to stop taking - the Cymbalta or the dextromethorphan? Tx!