Some of my stomach issues with meds in the past were corrected with a prescription strength antacid. There were periods the only thing I seemed to tolerate was dairy to coat my stomach before ingesting my meds.

I've found that since I've cut out processed foods and carbs, (using a variation of the 4 F's diet) I no longer have stomach pain or sensitivity. I haven't needed to use antacid in months.

Cymbalta worked really well for me for a few months and then caused severe stomach pain. I should probably do another test to see if I can tolerate it now.