http://www.rxlist.com/nexium-drug.htm Nexium (Esomeprazole Magnesium): Side Effects. http://www.rxlist.com/nexium-drug.htm Nexium Drug Information Nexium Nexium (Esomeprazole Magnesium): Side Effects. http://www.rxlist.com/nexium-drug.htm http://www.rxlist.com/nexium-drug.htm