Hi Jan,
Thank you for your question! Cymbalta is a fairly new medication, as you may know. There are some side effects associated with the use of Cymbalta, the most common are dry mouth, dizziness, headache, constipation, insomnia, nervousness, and reduced sex drive. You can read more about Cymbalta (including how to take, what to expect, and other information) at this link. I hope this helps!
Best of luck,
Casey