Do not take Areston: If the patient is allergic to diclofenac, soya oil, peanut oil or any of the other ingredients of this medicine (listed in Description). Signs of a hypersensitivity reaction include swelling of the face and mouth (angioedema), breathing problems, chest pain, runny nose, skin rash or any other allergic type reaction.
If the patient has established heart disease and/or cerebrovascular disease e.g. if the patient had a heart attack, stroke, mini-stroke (TIA) or blockages to blood vessels to the heart or brain or an operation to clear or bypass blockages; or the pumping power of the heart is reduced giving the patient exertional tiredness, palpitations and shortness of breath (heart failure).
If the patient has or has had a stomach ulcer or ulcer in the gastrointestinal tract.
If the patient has ever noticed blood in their stools or black stools (signs of gastrointestinal bleeding).
If the patient suffers from severe liver or kidney disease.
If the patient has or has had problems with their blood circulation (peripheral arterial disease).
If the patient is about 20 weeks pregnant or later.
If the patient has ever had asthma or wheezing, an extensive skin rash (urticaria), or a "hay fever"-like runny nose after taking aspirin or other NSAIDs such as ibuprofen.
If the patient has a stroke, bleeding, or other bleeding disorders.
If the patient has blood disorders.
If the patient has certain abnormalities in the bone marrow.
If any of the above applies to the patient or not sure, ask the doctor or pharmacist.