These effects are very rare or uncommon, that is they may affect between 1 to 100 in every 10,000 patients: • chest pain, irregular heart rhythm. • cough, difficulty breathing or painful breathing. • light-headedness, dizziness or fainting. • nausea, loss of appetite, light-coloured urine, yellowing of the skin or eyes. • rash, red skin, blistering of the lips, eyes, skin or mouth, skin peeling, fever, raised red or purple skin patches, itching, burning sensation. • severe abdominal pain, blood in your vomit, stools or urine, black stools. • severely decreased urine output, thirst. • nausea, diarrhoea, vomiting, abdominal pain or fever (signs of inflammatory bowel disease). • severe headache, weakness or paralysis of limbs or face, difficulty speaking, sudden loss of consciousness (signs of nervous system disorder). • pale skin, tiredness, breathlessness, dark urine (signs of low levels of red blood cells). • pain in your eyes or deterioration in vision. • pain in your hips or difficulty walking. • numb or cold toes and fingers (signs of Raynaud’ s syndrome). • acute inflammation of the skin caused by infection (signs of cellulites). • difficulty hearing. • muscle weakness, muscle spasms, abnormal heart rhythm (signs of changes in level of potassium in the blood). • bruising. • stomach pain, nausea.