- Initiation of new pain medications and non-steroidal anti-inflammatory drugs NSAIDS within the past month such as [aspirin, ibuprofen (Advil®, Motrin®, Nuprin®), acetaminophen (Tylenol®), naproxen (Aleve®, Naprosyn®), codeine (Vicodin®), morphine (Dilaudid®), oxycodone (OxyContin®, Percocet®) fentanyl (Duragesic®) and COX-2 inhibitors, Celebrex®)