Anti-inflammatory Painkillers like Etoricoxib are Sometimes Called Non-steroidal Anti-inflammatory Drugs (nsaids), or Just 'anti-inflammatories'. Etoricoxib is Used to Treat Painful Conditions such As arthritis, gout and Dental Pain After Surgery. It Eases Pain and Reduces Inflammation. Etoricoxib is also Known as a Cyclo-oxygenase-2 Inhibitor. this is Because It Works to Relieve Pain and Inflammation By Blocking An Enzyme in the Body Called Cyclo-oxygenase-2 (cox-2). Cox-2 is Involved in the Production of Irritant Substances in the Body in Response to Disease and Injury. By Blocking the Action of Cox-2, Etoricoxib Reduces the Symptoms of Pain and Inflammation.