 Common side effects (in about 1–10% of patients) include gastrointestinal problems typical of NSAIDs, such as nausea, diarrhoea, stomach pain, and peptic ulcer; central nervous effects like headache and dizziness; and skin reactions.Gastrointestinal tolerability is better than that of the related drug indometacin.Severe allergic reactions and haematopoietic disorders occur in fewer than 0.01% of patients.