As long as the two meds aren't depression. But as stated by this other member yes you can. Usually when you go to the Pharmacy, there will b a red flag if there is a conflict with ANY of the meds u are taking and they will tell you. Usually when you have a new RX they will ask the Pharmacist to talk with you about the medication.
Yes you can. That is not an unusual combination for any Psychiatrist to combine.
Lexapro is an SSRI and Cymbalta is an SNRI. They both work on different neurotransmitters in the brain so no fear of getting serotonin syndrome from a combination of the two.