I take Cymbalta in the AM. Throughout the day I take numerous other drugs such as Gabapentin, Omeprazole, Lisinopril, Simvastatin, Amlodipine, Zolpidem, Cyclobenzaprine, Percocet, Tylenol, Alieve and Asprine. I am concerned about drug interactions particularly drugs that remain in the system for long periods of time.