Severity: Major. You should check with your doctor immediately if any of these side effects occur when taking duloxetine:
- abdominal or stomach pain
- area rash
- blindness
- blistering, peeling, or loosening of the skin
- blurred vision
- change in consciousness
- chills
- clay-colored stools
- cold sweats
- confusion
- convulsions
- dark urine
- decreased urine output