Hypersensitivity to the active substance or to any of the excipients.
Active peptic ulceration or active gastro-intestinal (GI) bleeding.
Patients who, after taking acetylsalicylic acid or NSAIDs including COX-2 (cyclooxygenase-2) inhibitors, experience bronchospasm, acute rhinitis, nasal polyps, angioneurotic oedema, urticaria, or allergic-type reactions.
Pregnancy and lactation (see Use in Pregnancy & Lactation and Pharmacology: Toxicology: Preclinical Safety Data under Actions).
Severe hepatic dysfunction (serum albumin <25 g/l or Child-Pugh score ≥10).
Estimated renal creatinine clearance <30 ml/min.
Children and adolescents under 16 years of age.
Inflammatory bowel disease.
Congestive heart failure (NYHA II-IV).
Patients with hypertension whose blood pressure is persistently elevated above 140/90mmHg and has not been adequately controlled.
Established ischaemic heart disease, peripheral arterial disease, and/or cerebrovascular disease.