Hi, Nurofen Zavance tablet contains ibuprofen which is used to relieve pain like headache, migraines, back pain, dental pain, period pain, muscular pain, arthritic pain, sinus pain and many more. It also reduces fever. The sodium formulation of this medicine gets absorbed into the bloodstream up to twice as fast as standard ibuprofen. Side effects of Nurofen Zavance are indigestion, heartburn, burning feeling in the chest or throat, chest tightness, throat irritation, discomfort in chest, throat or stomach, bloating, gas, flatulence, sore throat, worsening of pre existing gastroesophageal reflux, worsening of pre existing stomach ulcers, GIT upset, diarrhea, abdominal distension, nausea, vomiting, unusual bleeding or bruising, unusual tiredness or weakness, pale skin, weight gain, decrease in urine output, allergic reactions etc. If these side effects persist for long or bother you, then you should consult your doctor promptly for medical attention. Take care. Hope I have answered your question. Let you know if I can assist you further. Regards, Dr. Zubayer Alam, General And Family Physician