Nimesulide is a non-steroidal anti-inflammatory drug (NSAID) developed by Helsinn Healthcare indicated for the treatment of acute pain and primary dysmenorrhoea. Nimesulide must be prescribed by a licensed physician as second line treatment in the approved indications and in compliance with the recommendations expressed in the Summary of Product Characteristics. Daily dose is 100mg twice-a-day. The maximum duration of a treatment course is 15 days and, as for other NSAIDs, treatment should be as short as possible. Nimesulide is not indicated in children younger than