Vimovo (naproxen / esomeprazole) is a combination medication for people age 12 years and older who have arthritis. It contains naproxen, a nonsteroidal anti-inflammatory drug (NSAID) that relieves arthritis symptoms like joint pain and swelling. This combination medication also contains the proton pump inhibitor (PPI) esomeprazole to protect against damage to the stomach from naproxen. Vimovo (naproxen / esomeprazole) is a tablet that's taken by mouth twice a day. Side effects can include inflammation of the stomach lining and diarrhea.